CN107634334A - Antenna structure and the radio communication device with the antenna structure - Google Patents

Antenna structure and the radio communication device with the antenna structure Download PDF

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Publication number
CN107634334A
CN107634334A CN201710488559.7A CN201710488559A CN107634334A CN 107634334 A CN107634334 A CN 107634334A CN 201710488559 A CN201710488559 A CN 201710488559A CN 107634334 A CN107634334 A CN 107634334A
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CN
China
Prior art keywords
antenna structure
metal
end
backboard
electrically connected
Prior art date
Application number
CN201710488559.7A
Other languages
Chinese (zh)
Inventor
李承翰
许溢文
叶维轩
Original Assignee
深圳富泰宏精密工业有限公司
群迈通讯股份有限公司
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Priority to US201662364303P priority Critical
Priority to US62/364303 priority
Application filed by 深圳富泰宏精密工业有限公司, 群迈通讯股份有限公司 filed Critical 深圳富泰宏精密工业有限公司
Priority claimed from US15/647,281 external-priority patent/US20180026345A1/en
Publication of CN107634334A publication Critical patent/CN107634334A/en

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Abstract

The present invention provides a kind of antenna structure, including housing, first feed-in source and the first radiant body, the housing includes front frame, backboard and frame, fluting is offered on the frame, breakpoint is offered in the front frame, the breakpoint connects with the fluting and extends to the cut-off front frame, the fluting and the breakpoint mark off that metal is long-armed and metal galianconism from the housing, first radiant body is arranged in the housing, including the first irradiation unit and the second irradiation unit, one end of first irradiation unit is electrically connected to the first feed-in source, the other end couples setting with the long-armed interval of the metal;One end of second irradiation unit is electrically connected to the first feed-in source, and the other end is electrically connected to the metal galianconism.Backboard in the antenna structure forms all-metal construction, can effectively avoid due to slot, break or the setting of breakpoint and influence the integrality and aesthetic property of backboard.The present invention also provides a kind of radio communication device with the antenna structure.

Description

Antenna structure and the radio communication device with the antenna structure

Technical field

The present invention relates to a kind of antenna structure and with the antenna structure radio communication device.

Background technology

With the progress of wireless communication technology, radio communication device is constantly towards frivolous trend development, and consumer is for production The requirement of product outward appearance also more and more higher.Because metal shell in outward appearance, laser intensity, radiating effect etc. has advantage, because This increasing manufacturer designs the radio communication device with metal shell, such as metal backing to meet the need of consumer Ask.But the signal that the antenna that sets within it of the easy interference shielding of metal shell is radiated, it is not easy to reach wideband design, Cause the radiance of built-in aerial bad.Furthermore fluting and breakpoint are further typically provided with the backboard, will so influence to carry on the back The integrality and aesthetic property of plate.

The content of the invention

In view of this, it is necessary to which a kind of antenna structure and the radio communication device with the antenna structure are provided.

A kind of antenna structure, including housing, the first feed-in source and the first radiant body, the housing include front frame, backboard And frame, the frame are located between the front frame and the backboard, fluting is offered on the frame, in the front frame Breakpoint is offered, the breakpoint connects with the fluting and extends to the cut-off front frame, the fluting and the breakpoint from institute State housing and mark off that metal is long-armed and metal galianconism, first radiant body is arranged in the housing, including the first irradiation unit And second irradiation unit, one end of first irradiation unit are electrically connected to the first feed-in source, the other end and the metal are long-armed Interval coupling is set;One end of second irradiation unit is electrically connected to the first feed-in source, and the other end is electrically connected to the gold Belong to galianconism.

A kind of radio communication device, including antenna structure described above.

Above-mentioned antenna structure and the radio communication device with the antenna structure can cover tremendously low frequency, intermediate frequency, high frequency (LTE- A Band 40, Band41 frequency ranges), WIFI 2.4/5GHz double frequencies, frequency range is wider.In addition, on the housing of the antenna structure Fluting and breakpoint may be contained within the front frame and frame, be not arranged on the backboard so that the backboard forms complete Metal structure, i.e., not fluting, broken string or the breakpoint of insulation on described backboard so that the backboard can avoid due to fluting, Broken string or breakpoint setting and influence the integrality and aesthetic property of backboard.

Brief description of the drawings

Fig. 1 is that the antenna structure of the first preferred embodiment of the invention is applied to the schematic diagram of radio communication device.

Fig. 2 is the assembling schematic diagram of radio communication device shown in Fig. 1.

Fig. 3 is the assembling schematic diagram under another angle of radio communication device shown in Fig. 2.

Fig. 4 is the circuit diagram of the first switching circuit in antenna structure shown in Fig. 1.

Fig. 5 is the circuit diagram that the first switching circuit shown in Fig. 4 is provided with resonance circuit.

Fig. 6 is another circuit diagram that the first switching circuit shown in Fig. 4 is provided with resonance circuit.

Fig. 7 is the fundamental diagram that narrow frequency mode is produced when the first switching circuit is provided with resonance circuit shown in Fig. 5.

Fig. 8 is the fundamental diagram that narrow frequency mode is produced when the first switching circuit is provided with resonance circuit shown in Fig. 6.

Fig. 9 is current trend figure when antenna structure shown in Fig. 1 works in low frequency modal and GPS mode.

Figure 10 is current trend schematic diagram when antenna structure shown in Fig. 1 works in 1710-2690MHz frequency ranges.

Figure 11 is S parameter (scattering parameter) curve when antenna structure shown in Fig. 1 works in low frequency modal and GPS mode Figure.

Figure 12 is radiation efficiency figure when antenna structure shown in Fig. 1 works in low frequency modal.

Figure 13 is radiation efficiency figure when antenna structure shown in Fig. 1 works in GPS mode.

Figure 14 is S parameter (scattering parameter) curve map when antenna structure shown in Fig. 1 works in 1710-2690MHz frequency ranges.

Figure 15 is radiation efficiency figure when antenna structure shown in Fig. 1 works in 1710-2690MHz frequency ranges.

Figure 16 is the structural representation of the antenna structure of the second preferred embodiment of the invention.

Figure 17 to Figure 19 is the position relationship schematic diagram of isolation part in antenna structure shown in Figure 16.

Figure 20 is current trend schematic diagram when antenna structure shown in Figure 16 works in high frequency mode.

Figure 21 is current trend schematic diagram when antenna structure shown in Figure 16 works in double frequency WIFI mode.

Figure 22 is S parameter (scattering parameter) curve when antenna structure shown in Figure 16 works in intermediate frequency mode and high frequency mode Figure.

Figure 23 is radiation efficiency figure when antenna structure shown in Figure 16 works in intermediate frequency mode and high frequency mode.

Figure 24 is S parameter when antenna structure shown in Figure 16 works in WIFI 2.4GHZ mode and WIFI 5GHz mode (scattering parameter) curve map.

Figure 25 is radiation efficiency figure when antenna structure shown in Figure 16 works in WIFI 2.4GHZ mode.

Figure 26 is radiation efficiency figure when antenna structure shown in Figure 16 works in WIFI 5GHz mode.

Figure 27 is that the antenna structure of the 3rd preferred embodiment of the invention is applied to the schematic diagram of radio communication device.

Figure 28 is the assembling schematic diagram of radio communication device shown in Figure 27.

Figure 29 is the assembling schematic diagram under another angle of radio communication device shown in Figure 28.

Figure 30 is the circuit diagram of the first switching circuit in antenna structure shown in Figure 27.

Figure 31 is the circuit diagram of the second switching circuit in antenna structure shown in Figure 27.

Figure 32 is the current trend figure of antenna structure shown in Figure 27.

Figure 33 is the circuit diagram that the first switching circuit shown in Figure 30 is provided with resonance circuit.

Figure 34 is another circuit diagram that the first switching circuit shown in Figure 30 is provided with resonance circuit.

Figure 35 is the fundamental diagram that narrow frequency mode is produced when the first switching circuit is provided with resonance circuit shown in Figure 33.

Figure 36 is the fundamental diagram that narrow frequency mode is produced when the first switching circuit is provided with resonance circuit shown in Figure 34.

Figure 37 is current trend figure when antenna structure shown in Figure 27 is provided with resonance circuit and works in low frequency modal.

Figure 38 is when antenna structure shown in Figure 27 is provided with the resonance circuit and works in 1710-2690MHz frequency ranges Current trend schematic diagram.

Figure 39 is S parameter (scattering parameter) curve map when antenna structure shown in Figure 27 works in low frequency modal.

Figure 40 is radiation efficiency figure when antenna structure shown in Figure 27 works in low frequency modal.

Figure 41 is S parameter (scattering parameter) curve when antenna structure shown in Figure 27 works in 1710-2690MHz frequency ranges Figure.

Figure 42 is radiation efficiency figure when antenna structure shown in Figure 27 works in 1710-2690MHz frequency ranges.

Figure 43 is the structural representation of the antenna structure of the 4th preferred embodiment of the invention.

Figure 44 is current trend schematic diagram when antenna structure shown in Figure 43 works in 1710-2400MHz frequency ranges.

Figure 45 is current trend schematic diagram when antenna structure shown in Figure 43 works in double frequency WIFI mode.

Figure 46 is current trend schematic diagram when antenna structure shown in Figure 43 works in 2496-2690MHz frequency ranges.

Figure 47 is S parameter (scattering parameter) curve when antenna structure shown in Figure 43 works in 1710-2400MHz frequency ranges Figure.

Figure 48 is radiation efficiency figure when antenna structure shown in Figure 43 works in 1710-2400MHz frequency ranges.

Figure 49 is S parameter when antenna structure shown in Figure 43 works in WIFI 2.4GHZ mode and WIFI 5GHz mode (scattering parameter) curve map.

Figure 50 is radiation effect when antenna structure shown in Figure 43 works in WIFI 2.4GHZ mode and WIFI 5GHz mode Rate figure.

Figure 51 is S parameter (scattering parameter) curve when antenna structure shown in Figure 43 works in 2496-2690MHz frequency ranges Figure.

Figure 52 is radiation efficiency figure when antenna structure shown in Figure 43 works in 2496-2690MHz frequency ranges.

Figure 53 is the structural representation of the antenna structure of the 5th preferred embodiment of the invention.

Figure 54 is current trend schematic diagram when antenna structure shown in Figure 53 works in 1710-2170MHz frequency ranges.

Figure 55 is that electric current when antenna structure shown in Figure 53 works in 2300-2400MHz and 2496-2690MHz frequency ranges is walked To schematic diagram.

Figure 56 is S parameter (scattering parameter) curve when antenna structure shown in Figure 53 works in 1710-2170MHz frequency ranges Figure.

Figure 57 is radiation efficiency figure when antenna structure shown in Figure 53 works in 1710-2170MHz frequency ranges.

Figure 58 is S parameter when antenna structure shown in Figure 53 works in 2300-2400MHz and 2496-2690MHz frequency ranges (scattering parameter) curve map.

Figure 59 is radiation effect when antenna structure shown in Figure 53 works in 2300-2400MHz and 2496-2690MHz frequency ranges Rate figure.

Figure 60 is that the antenna structure of the 6th preferred embodiment of the invention is applied to the schematic diagram of radio communication device.

Figure 61 is the assembling schematic diagram of radio communication device shown in Figure 60.

Figure 62 is the assembling schematic diagram under another angle of radio communication device shown in Figure 61.

Figure 63 is the circuit diagram of the first switching circuit in antenna structure shown in Figure 60.

Figure 64 is the circuit diagram of the second switching circuit in antenna structure shown in Figure 60.

Figure 65 is the circuit diagram that the first switching circuit shown in Figure 63 is provided with resonance circuit.

Figure 66 is another circuit diagram that the first switching circuit shown in Figure 63 is provided with resonance circuit.

Figure 67 is the fundamental diagram that narrow frequency mode is produced when the first switching circuit is provided with resonance circuit shown in Figure 65.

Figure 68 is the fundamental diagram that narrow frequency mode is produced when the first switching circuit is provided with resonance circuit shown in Figure 66.

Figure 69 is current trend schematic diagram when antenna structure shown in Figure 60 works in low frequency modal.

Figure 70 is current trend schematic diagram when antenna structure shown in Figure 60 works in intermediate frequency mode.

Figure 71 is current trend schematic diagram when antenna structure shown in Figure 60 works in high frequency mode.

Figure 72 is S parameter (scattering parameter) curve map when antenna structure shown in Figure 60 works in low frequency modal.

Figure 73 is radiation efficiency figure when antenna structure shown in Figure 60 works in low frequency modal.

Figure 74 is S parameter (scattering parameter) curve map when antenna structure shown in Figure 60 works in intermediate frequency mode.

Figure 75 is radiation efficiency figure when antenna structure shown in Figure 60 works in intermediate frequency mode.

Figure 76 is S parameter (scattering parameter) curve map when antenna structure shown in Figure 60 works in high frequency mode.

Figure 77 is radiation efficiency figure when antenna structure shown in Figure 60 works in high frequency mode.

Figure 78 is the structural representation of the antenna structure of the 7th preferred embodiment of the invention.

Figure 79 is current trend schematic diagram when antenna structure shown in Figure 78 works in intermediate frequency mode.

Figure 80 is S parameter (scattering parameter) curve map when antenna structure shown in Figure 78 works in low frequency modal.

Figure 81 is radiation efficiency figure when antenna structure shown in Figure 78 works in low frequency modal.

Figure 82 is S parameter (scattering parameter) curve map when antenna structure shown in Figure 78 works in intermediate frequency mode.

Figure 83 is radiation efficiency figure when antenna structure shown in Figure 78 works in intermediate frequency mode.

Main element symbol description

Following embodiment will combine above-mentioned accompanying drawing and further illustrate the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.

It should be noted that when an element is referred to as " electrically connecting " another element, it can be directly in another yuan On part or there may also be element placed in the middle.When an element is considered as " electrical connection " another element, it can be connect Connection is touched, for example, it may be the mode of wire connection or contactless connection, for example, it may be contactless coupling Mode.

Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more phases The arbitrary and all combination of the Listed Items of pass.

Below in conjunction with the accompanying drawings, some embodiments of the present invention are elaborated.It is following in the case where not conflicting Feature in embodiment and embodiment can be mutually combined.

Embodiment 1-2

Referring to Fig. 1, the first better embodiment of the invention provides a kind of antenna structure 100, it can be applied to mobile electricity In the radio communication devices such as words, personal digital assistant 400, to launch, receive radio wave to transmit, exchange wireless signal.

Also referring to Fig. 2 and Fig. 3, the antenna structure 100 includes metalwork 11, the first feed-in source 13, the second feed-in The switching circuit 15 of source 14 and first.The metalwork 11 can be the shell of the radio communication device 400.The metalwork 11 Including metal front frame 111, metal backing 112 and metal edge frame 113.The metal front frame 111, metal backing 112 and metal edges Frame 113 can be integrally formed.The metal front frame 111, metal backing 112 and metal edge frame 113 form described wireless The shell of communicator 400.An opening (figure is not marked) is provided with the metal front frame 111, for housing the radio communication The display unit 401 of device 400.It is appreciated that the display unit 401 has a display plane, the display plane is exposed to The opening, and the display plane is arranged substantially in parallel with the metal backing 112.

The metal backing 112 is oppositely arranged with the metal front frame 111.What the metal backing 112 was formed in one Single sheet metal, in addition to appear the perforate 404,405 that camera lens 402 and the grade element of flash lamp 403 are set, thereon The fluting, broken string or breakpoint (please join Fig. 3) of any insulation are not set.The metal backing 112 is equivalent to the day knot The ground of structure 100.

The metal edge frame 113 is located between the metal front frame 111 and the metal backing 112, and is surround respectively The periphery of the metal front frame 111 and the metal backing 112 set, with the display unit 401, the metal front frame 111 and metal backing 112 surround an accommodation space 114 jointly.The accommodation space 114 fills to the accommodating radio communication Put the electronic components such as 400 circuit board, processing unit or circuit module in the inner.

The metal edge frame 113 comprises at least top 115, the first sidepiece 116 and the second sidepiece 117.The top 115 Connect the metal front frame 111 and the metal backing 112.First sidepiece 116 is relative with second sidepiece 117 to be set Put, both are respectively arranged at the both ends at the top 115, and preferred vertical is set.First sidepiece 116 and second sidepiece 117 also connect the metal front frame 111 and the metal backing 112.Fluting 118, institute are further opened with the metal edge frame 113 State and breakpoint 119 is offered in metal front frame 111.In the present embodiment, the fluting 118 is laid on the top 115, and point The sidepiece 117 of the first sidepiece 116 and second is not extended to.It is appreciated that in other embodiments, the fluting 118 also may be used The top 115 is only arranged at, and does not extend to any one in the sidepiece 117 of the first sidepiece 116 and second, Huo Zhesuo State fluting 118 and be arranged at the top 115, and only along extend in the sidepiece 117 of the first sidepiece 116 and second wherein it One.The breakpoint 119 connects with the fluting 118, and extends to the cut-off metal front frame 111.In the present embodiment, it is described Breakpoint 119 is set adjacent to second sidepiece 117, and the metal front frame 111 is marked off two parts by said breakpoint 119, That is the long-armed A1 of metal and metal galianconism A2.Wherein, the metal front frame 111 of the side of breakpoint 119 until its extend to it is described The part that the wherein end point E1 of fluting 118 is corresponding is collectively forming the long-armed A1 of the metal.The gold of the opposite side of breakpoint 119 Category front frame 111 forms the metal galianconism A2 until it extends to the part corresponding with another end points E2 of the fluting 118. In the present embodiment, the position that the breakpoint 119 opens up not is the centre for corresponding to the top 115, therefore the metal is grown Arm A1 length is more than metal galianconism A2 length.In addition, it is filled with insulation material in the fluting 118 and the breakpoint 119 Material (such as plastic cement, rubber, glass, timber, ceramics etc., but do not limited with this As), and then it is short to separate the long-armed A1 of the metal, metal Arm A2 and the metal backing 112.

It is appreciated that the first half of the metal front frame 111 and metal edge frame 113 is except the fluting 118 and breakpoint 119 Fluting, broken string or the breakpoint for not setting other to insulate again in addition, therefore the first half of the metal front frame 111 just only has one Breakpoint 119, without other breakpoints.

The first feed-in source 13 can be electrically connected to the long-armed A1 of the metal close to described by match circuit (not shown) One end of first sidepiece 116, and then be the long-armed A1 feed-ins electric current of the metal so that the long-armed A1 of metal excites one first mould State is to produce the radiation signal of the first frequency range.In the present embodiment, the first mode is a low frequency modal, and first frequency range is 700-900MHz frequency ranges.

The second feed-in source 14 can be electrically connected to the metal galianconism A2 close to described by match circuit (not shown) One end of breakpoint 119, and then be the metal galianconism A2 feed-in electric currents so that the metal galianconism A2 inspires corresponding two Mode, the two mode form the application (i.e. 1710-2690MHz frequency ranges) of broadband resonance, and the broadband can cover into Frequently, high frequency and WIFI 2.4GHz frequency ranges.

Also referring to Fig. 4, first switching circuit 15 is electrically connected to the long-armed A1 of the metal, and it includes switch unit 151 and at least one switching device 153.The switching device 153 can be the combination of inductance, electric capacity or inductance and electric capacity.Institute State parallel with one another between switching device 153, and its one end is electrically connected to the switch unit 151, and the other end is electrically connected to metal Backboard 112.In this way, the switching by controlling the switch unit 151, may be such that the long-armed A1 of the metal switches to different cut Change element 153.Because each switching device 153 has a different impedances, therefore by the switching of the switch unit 151, It can adjust the frequency range of the first mode of the long-armed A1 of metal.Described adjustment frequency range is exactly to make the frequency range toward low frequency offset or past High frequency offset.

It is appreciated that also referring to Fig. 5 and Fig. 6, first switching circuit 15 may also include resonance circuit 155.Please Refering to Fig. 5, in a wherein embodiment, the quantity of the resonance circuit 155 is one, and the resonance circuit 155 includes mutual The inductance L and electric capacity C of series connection.The resonance circuit 155 is electrically connected between the long-armed A1 of the metal and metal backing 112, and With the switch unit 151 and at least a switching device 153 is arranged in parallel.

Referring to Fig. 6, in an other embodiment, the quantity of the resonance circuit 155 and the number of the switching device 153 Amount is consistent, as multiple.Each resonance circuit 155 includes the inductance L and electric capacity C being serially connected.Each described resonance circuit 155 are electrically connected between switch unit 151 and metal backing 112, and are arranged in parallel with corresponding switching device 153.

Fig. 7 is in the side of switch unit 151 of first switching circuit 15 shown in a Fig. 5 resonance circuit 155 in parallel When, relation principle figure of the S parameter (scattering parameter) between frequency.Where it is assumed that work as first switching circuit 15 not When increasing the resonance circuit 155 shown in Fig. 4, the antenna structure 100 works in first mode (please join curve S51).Work as institute When stating the first switching circuit 15 increases the resonance circuit 155, the resonance circuit 155 may be such that the long-armed A1 of the metal is extra Resonate out a narrow frequency mode (second mode, curve S52 please be join), to produce the radiation signal of the second frequency range, you can be effectively increased The application band of the antenna structure 100, reach multifrequency or wideband application.In one embodiment, second frequency range can be GPS frequency ranges, second mode i.e. the GPS resonance mode.

Fig. 8 is each side of switching device 153 resonance circuit in parallel in first switching circuit 15 shown in Fig. 6 When 155, relation principle figure of the S parameter (scattering parameter) between frequency.Where it is assumed that work as first switching circuit 15 When not increasing the resonance circuit 155 shown in Fig. 6, the antenna structure 100, which is operable with the first mode, (please join curve S61).So when first switching circuit 15 increases the resonance circuit 155, the resonance circuit 155 may be such that described The long-armed A1 additional resonants of metal go out the narrow frequency mode (please join curve S62), that is, GPS resonance modes, you can are effectively increased The application band of the antenna structure 100, reach multifrequency or wideband application.It is in addition, electric in the resonance circuit 155 by setting Feel L inductance value and the capacitance of the electric capacity C, the frequency range of the narrow frequency mode during first mode switching can be determined.Example Such as, in one of the embodiments, can be by setting inductance value and electric capacity in the resonance circuit 155 such as shown in Fig. 8 Value, when the switch unit 151 is switched to different switching devices 153, the narrow frequency mode of the antenna structure 100 is also cut therewith Change, such as fn can be moved to by f1, moving range is quite varied.

It is appreciated that in another embodiment, can also be by setting inductance value and electric capacity in the resonance circuit 155 The frequency range of value and the fixed narrow frequency mode, so that no matter the switch unit 151 switches to which switching device 153, The frequency range of the narrow frequency mode is all fixed.

It is understood that in other embodiments, the resonance circuit 155 is not limited to include the inductance L and electricity Hold C, it can also be made up of other resonant elements.

Fig. 9 is the current trend schematic diagram when antenna structure 100 works in low frequency modal and GPS mode.Obviously, when After electric current enters the long-armed A1 of the metal from the first feed-in source 13, the long-armed A1 of the metal will be flowed through, and will be flowed to described disconnected Point 119 (ginseng path P 1), and then inspire the low frequency modal.Further, since the antenna structure 100 is provided with the first switching Circuit 15, therefore switch using first switching circuit 15 the long-armed A1 of metal low frequency modal.Furthermore due to described The setting of resonance circuit 155 in first switching circuit 15, therefore may be such that the low frequency modal and GPS mode while exist. That is in the present embodiment, the electric current of the GPS mode is contributed by two parts, a portion is the low frequency modal Excite (ginseng path P 1), another part is excited after being adjusted by inductance L and electric capacity the C impedance matching of the resonance circuit 155 (ginseng path P 2).Wherein, the electric current of path P 2 is flowed to from the metal galianconism A2 close to the one end in the second feed-in source 14 The other ends of the metal galianconism A2 away from the second feed-in source 14.

Figure 10 is the current trend schematic diagram when antenna structure 100 works in 1710-2690MHz frequency ranges.Obviously, when After electric current enters the metal galianconism A2 from the second feed-in source 14, electric current will flow through the metal front frame 111, second successively Sidepiece 117 is simultaneously flowed through to the metal backing 112 at the back side (ginseng path P 3), and then inspires the 3rd mode to produce the 3rd frequency range The radiation signal of (i.e. 1710-2690MHz frequency ranges), to cover to intermediate frequency, high frequency and WIFI 2.4GHz frequency ranges.Obviously, with reference to Knowable to Fig. 4 and Figure 10, ground of the metal backing 112 equivalent to the antenna structure 100.

Figure 11 is S parameter (scattering parameter) curve when antenna structure 100 works in low frequency modal and GPS mode Figure.Wherein, curve S91 is the S11 values when antenna structure 100 works in the frequency ranges of LTE Band 28 (703-803MHz).It is bent Line S92 is the S11 values when antenna structure 100 works in the frequency ranges of LTE Band 5 (869-894MHz).Curve S93 is described Antenna structure 100 works in the S11 values when frequency ranges of LTE Band 8 (925-926MHz) and GPS frequency ranges (1.575GHz).Obviously, Curve S91 and S92 corresponding two different frequency ranges, and correspond to the changeable multiple low frequency modals of the switching circuit 15 respectively respectively Two of which.

Figure 12 is the radiation efficiency figure when antenna structure 100 works in low frequency modal.Wherein, curve 101 is described Antenna structure 100 works in the radiation efficiency during frequency ranges of LTE Band 28 (703-803MHz).Curve S102 is the day knot Structure 100 works in the radiation efficiency during frequency ranges of LTE Band 5 (869-894MHz).Curve S103 is the work of antenna structure 100 Make in the radiation efficiency during frequency ranges of LTE Band 8 (925-926MHz).Obviously, curve S101, S102 and S103 respectively corresponding three Individual different frequency range, and wherein three of the changeable multiple low frequency modals of the switching circuit 15 are corresponded to respectively.

Figure 13 is the radiation efficiency figure when antenna structure 100 works in GPS mode.Figure 14 is the antenna structure 100 work in the S parameter (scattering parameter) during 1710-2690MHz frequency ranges (i.e. intermediate frequency, high frequency and WIFI 2.4GHz frequency ranges) Curve map.Figure 15 is that the antenna structure 100 works in 1710-2690MHz frequency ranges (i.e. intermediate frequency, high frequency and WIFI 2.4GHz Frequency range) when radiation efficiency figure.

Obviously, it was found from Figure 11 to Figure 15, the antenna structure 100 is operable with corresponding low frequency band, such as LTE The frequency ranges of Band 28 (703-803MHz), the frequency ranges of LTE Band 5 (869-894MHz), the frequency range (925- of LTE Band 8 926MHz).In addition, the antenna structure 100 may also be operated in GPS frequency ranges (1.575GHz) and 1710-2690MHz frequency ranges, Covering to basic, normal, high frequency, frequency range is wider, and when the antenna structure 100 works in above-mentioned frequency range, its work frequency Rate can meet Antenna Operation design requirement, and have preferable radiation efficiency.

Also referring to Figure 16, the antenna structure 200 provided for the second preferred embodiment of the invention.The antenna structure 200 include metalwork 11, the first feed-in source 13, the second feed-in source 14 and the first switching circuit 15.The metalwork 11 includes Metal front frame 111, metal backing 112 and metal edge frame 113.The metal edge frame 113 comprises at least top 115, the first sidepiece 116 and second sidepiece 117.Fluting 118 is further opened with the metal edge frame 113, is further opened with the metal front frame 111 Breakpoint 119.The metal front frame 111 is divided into two parts by the breakpoint 119, this two part respectively include the long-armed A1 of metal and Metal galianconism A2.

It is appreciated that the difference of the antenna structure 200 and antenna structure 100 is, the antenna structure 200 also includes First radiant body 26, the 3rd feed-in source 27, isolation part 28, the second switching circuit 29, the second radiant body 30 and the 4th feed-in source 31。

First radiant body 26 is arranged in the accommodation space 114 that the metalwork 11 surrounds, and the neighbouring metal Galianconism A2 is set, and is arranged at intervals with the metal backing 112.In the present embodiment, first radiant body 26 is substantially in straight Strip, it be arranged in parallel with the top 215.One end of first radiant body 26 is connected to the isolation part 28, the other end Extend towards first sidepiece 116.The one end in the 3rd feed-in source 27 is used to electrically connect by match circuit (not shown) To first radiant body 26, the other end is electrically connected to the isolation part 28, for for the feed-in electric current of the first radiant body 26.

It is appreciated that in the present embodiment, because the second feed-in source 14 and the 3rd feed-in source 27 are each resonated Frequency band be closer to, easily produce isolation between antennas puzzlement.Therefore, the isolation part 28 is to cause two feed-in sources, i.e., The structure current path in the second feed-in source 14 and the 3rd feed-in source 27 extends, to lift metal galianconism A2 and the first spoke Isolation between beam 26.

It is appreciated that the isolation part 28 can have any shape and size, or it is a planar metal sheet, it is only necessary to ensure The isolation part 28 can reach the structure current path for extending the second feed-in source 14 and the 3rd feed-in source 27, to improve Isolation between metal galianconism A2 and the first radiant body 26.For example, in the present embodiment, the isolation part 28 is in block Shape, it is arranged on the metal backing 112, and is extended by second sidepiece 117 towards first sidepiece 116 and formed.

It is appreciated that also referring to Figure 17, in other embodiments, the antenna structure 200 also includes metal frame 32.The metal frame 32 is arranged in the accommodation space 114, and connects the metalwork 11.The isolation part 28 is in block Shape, it is arranged on the metal backing 112, and is extended by second sidepiece 117 towards the first sidepiece 116 and formed, and even It is connected to the metal frame 32.

It is appreciated that also referring to Figure 18, in other embodiments, the antenna structure 200 also includes metal frame 32.The metal frame 32 is arranged in the accommodation space 114, and connects the metalwork 11.The isolation part 28 is in block Shape, it is arranged on the metal backing 112, and is extended by second sidepiece 117 towards the first sidepiece 116 and formed, and with The metal frame 32 is arranged at intervals.

It is appreciated that also referring to Figure 19, in other embodiments, the antenna structure 200 also includes metal frame 32.The metal frame 32 is arranged in the accommodation space 114, and connects the metalwork 11.The isolation part 28 is in square Shape sheet, it is arranged at the side of the metal frame 32, and with second sidepiece 117 and the metal backing 112 between Every setting.

Referring to Figure 16, one end of second switching circuit 29 is electrically connected to first radiant body 26, another End is connected to the metal backing 112.Second switching circuit 29 is used for the high frequency mode for adjusting first radiant body 26 Frequency range, its particular circuit configurations and operation principle see the description of Fig. 4 the first switching circuit 15, will not be repeated here.

It is appreciated that second radiant body 30 includes the first irradiation unit 301 and the second irradiation unit 302.First spoke Penetrate that portion 301 is generally U-shaped, including the first radiant section 303, the second radiant section 304 and the 3rd radiant section being sequentially connected electrically 305.First radiant section 303 is substantially in vertical bar shape, and is be arranged in parallel with the top 215.Second radiant section 304 is in Vertical bar shape, its one end vertical connection to first radiant section 303 are flat close to the end of second sidepiece 117, other end edge The direction at row second sidepiece 117 and the close top 215 extends, and then forms a L-type with first radiant section 303 Structure.3rd radiant section, the 305 generally rectangular shaped strip, its one end are connected to second radiant section 304 away from described One end of one radiant section 303, the other end prolong along parallel first radiant section 303 and close to the direction of first sidepiece 116 To stretch, i.e., described 3rd radiant section 305 and first radiant section 303 are respectively arranged at the same side of second radiant section 304, And it is respectively arranged at the both ends of second radiant section 304.

Second irradiation unit 302 is generally T-shaped, and it includes the first linkage section 306, the second linkage section 307 and the 3rd Linkage section 308.First linkage section, the 306 generally rectangular shaped strip, it is remote that its one end is electrically connected to first radiant section 303 The end of second radiant section 304, the other end is along parallel second radiant section 304 and close to the side of the 3rd radiant section 305 To extension.Second linkage section 307 is substantially in vertical bar shape, and its one end vertical connection to first linkage section 306 is away from One end of one radiant section 303, the other end is along parallel first radiant section 303 and close to the direction of second radiant section 304 Extension.3rd linkage section 308 is substantially in vertical bar shape, and it is connected to the linkage section 307 of the first linkage section 306 and second Tie point, and extend along parallel first radiant section 303 and close to the direction of first sidepiece 116, with described second Linkage section 307 is located at same straight line, until being connected with the metal front frame 111 in the front of the first sidepiece 116.

The 4th feed-in source 31 is arranged in the metal front frame 111, and be electrically connected to first radiant section 303 with The tie point of first linkage section 306, to be respectively fed into electric current to the irradiation unit 302 of the first irradiation unit 301 and second, And then corresponding operation mode is excited, such as WIFI 2.4GHz mode and WIFI 5GHz mode.

It is appreciated that when the antenna structure 200 works in low frequency modal and GPS mode, its current trend with it is described Current trend when antenna structure 100 works in low frequency modal and GPS mode is consistent, specifically see Fig. 9, no longer superfluous herein State.

It is appreciated that when the antenna structure 200 works in intermediate frequency mode, its current trend and the antenna structure 100 current trend when working in 1710-2690MHz frequency ranges is consistent, specifically see Figure 10, will not be repeated here.

Also referring to 20, current trend schematic diagram during high frequency mode is worked in for the antenna structure 200.Obviously, After electric current enters the first radiant body 26 from the 3rd feed-in source 27, first radiant body 26 will be flowed to away from the described 3rd The one end (ginseng path P 4) in feed-in source 27, and then the 4th mode is inspired to produce the radiation signal of the 4th frequency range.The present embodiment The 4th mode be high frequency mode.Further, since the antenna structure 200 is provided with the second switching circuit 29 of ground connection, therefore Switch the high frequency mode using second switching circuit 29, such as may be such that the antenna structure 200 switches to LTE The frequency ranges of Band 40 (2300-2400MHz) or the frequency ranges of LTE Band 41 (2496-2690MHz), and cause the high frequency mode with The intermediate frequency mode exists simultaneously.

Figure 21 is the current trend schematic diagram when antenna structure 200 works in double frequency WIFI mode.Obviously, electric current is worked as After entering the second radiant body 30 from the 4th feed-in source 31, electric current will flow through first radiant section 303, second successively and radiate The radiant section 305 (ginseng path P 5) of section 304 and the 3rd, and then corresponding 5th mode is inspired to produce the radiation of the 5th frequency range Signal.5th mode of the present embodiment is WIFI 2.4GHz mode.In addition, electric current enters second from the 4th feed-in source 31 After radiant body 30, the linkage section 307 (ginseng path P 6) of the first linkage section 306 and second will be also flowed through successively, and then excite Go out corresponding 6th mode to produce the radiation signal of the 6th frequency range.6th mode of the present embodiment is WIFI 5GHz mode.

It is appreciated that when the antenna structure 200 works in low frequency modal and GPS mode, its S parameter (scattering parameter) S parameter (scattering when curve map and radiation efficiency figure work in low frequency modal and GPS mode with the antenna structure 100 Parameter) curve map and radiation efficiency figure it is consistent, specifically see 10, Figure 11 and Figure 12, will not be repeated here.

Figure 22 is S parameter (scattering parameter) curve when antenna structure 200 works in intermediate frequency mode and high frequency mode Figure.Wherein curve S201 is that the inductance value of the switching device 153 of the first switching circuit 15 in the antenna structure 200 is S11 values during 0.13 pico farad (pf).Curve S202 is the switching device of the first switching circuit 15 in the antenna structure 200 S11 values when 153 inductance value is 0.15pf.Curve S203 is the described of the first switching circuit 15 in the antenna structure 200 S11 values when the inductance value of switching device 153 is 0.2pf.Curve S204 is the first switching circuit 15 in the antenna structure 200 S11 values during open circuit (not switching to any switching device 153).Curve S205 is the second switching in the antenna structure 200 S11 values when the inductance value of the switching device of circuit 29 is 0.13pf.Curve S206 is the second switching in the antenna structure 200 S11 values when the inductance value of the switching device of circuit 29 is 0.15pf.Curve S207 is the second switching in the antenna structure 200 S11 values when the inductance value of the switching device of circuit 29 is 0.2pf.Curve S208 is the second switching in the antenna structure 200 S11 values when circuit 29 is opened a way and (do not switch to any switching device).

Figure 23 is the radiation efficiency figure when antenna structure 200 works in intermediate frequency mode and high frequency mode.Wherein curve S211 is that the inductance value of the switching device 153 of the first switching circuit 15 in the antenna structure 200 is 0.13 pico farad (pf) When radiation efficiency.Curve S212 is the inductance of the switching device 153 of the first switching circuit 15 in the antenna structure 200 Be worth for 0.15pf when radiation efficiency.Curve S213 is the switching member of the first switching circuit 15 in the antenna structure 200 The radiation efficiency when inductance value of part 153 is 0.2pf.Curve S214 is that first switching circuit 15 is opened in the antenna structure 200 Radiation efficiency during road (not switching to any switching device 153).Curve S215 is the second switching in the antenna structure 200 The radiation efficiency when inductance value of the switching device of circuit 29 is 0.13pf.Curve S216 is second in the antenna structure 200 The radiation efficiency when inductance value of the switching device of switching circuit 29 is 0.15pf.Curve S217 is in the antenna structure 200 The radiation efficiency when inductance value of the switching device of second switching circuit 29 is 0.2pf.Curve S218 is the antenna structure 200 In radiation efficiency of second switching circuit 29 when opening a way and (not switching to any switching device).

Figure 24 is the S ginsengs when antenna structure 200 works in the WIFI 2.4GHZ frequency ranges and WIFI 5GHz frequency ranges Number (scattering parameter) curve map.Figure 25 is the radiation efficiency when antenna structure 200 works in the WIFI 2.4GHZ frequency ranges Figure.Figure 26 is the radiation efficiency figure when antenna structure 200 works in the WIFI 5GHz frequency ranges.

Obviously, from Figure 11 to Figure 13, and Figure 22 to Figure 26 is understood, the antenna structure 200 is operable with corresponding low Frequent section, such as the frequency ranges of LTE Band 28 (703-803MHz), the frequency ranges of LTE Band 5 (869-894MHz), LTE Band 8 Frequency range (925-926MHz).In addition, the antenna structure 100 may also be operated in GPS frequency ranges (1.575GHz), intermediate-frequency band (1805-2170MHz), high-frequency band (2300-2400MHz and 2496-2690MHz) and WIFI 2.4/5GHz two-bands, i.e., Cover to basic, normal, high frequency, WIFI 2.4/5GHz double frequencies, frequency range is wider, and when the antenna structure 200 work in it is above-mentioned During frequency range, its working frequency can meet Antenna Operation design requirement, and have preferable radiation efficiency.

As described in previous embodiments, the long-armed A1 of metal can excite first mode to produce the radiation signal of low frequency band, Metal galianconism A2 can excite the 3rd mode to produce the radiation signal of intermediate-frequency band and high-frequency band, and the first radiant body 26 can excite Go out the 4th mode to produce the radiation signal of high-frequency band.Therefore Long Term Evolution can be used to upgrade for radio communication device 400 Carrier aggregation (CA, the Carrier Aggregation) technology of version (LTE-Advanced) receives in multiple different frequency ranges simultaneously Or wireless signal is sent to increase transmitting bandwidth.More specifically, the carrier aggregation technology can be used in radio communication device 400 And receive or send wireless signal in multiple different frequency ranges simultaneously using the first radiant body 26.Radio communication device 400 can also Using the carrier aggregation technology and using metal long-armed A1, metal galianconism A2 and the first radiant body 26 both wherein at least simultaneously Wireless signal is received or sends in multiple different frequency ranges.

It is appreciated that in other embodiments, first radiant body 26 and second switching circuit 29 with it is described The position of second radiant body 30 can exchange, and the position of the isolation part 28 is constant.Specifically, first radiant body 26 One end is connected to the metal front frame 111, and the other end extends towards the direction of second sidepiece 117.Second switching circuit 29 one end is electrically connected to first radiant body 26, and the other end is connected to the metal backing 112.The 3rd feed-in source 27 It is arranged in the metal front frame 111, and is electrically connected to first radiant body 26.Second radiant body 30 is arranged at described In the accommodation space 114 that metalwork 11 surrounds, and the neighbouring metal galianconism A2 is set.The 3rd connects in second radiant body 30 Connect section 308 and be connected to one end of the metal front frame 111 and change to being electrically connected to the isolation part 28.The 4th feed-in source 31 One end be electrically connected to the tie point of first radiant section 303 and first linkage section 306, the other end is electrically connected to described Isolation part 28.

In addition, the antenna structure 100/200 is by setting the metalwork 11, and the fluting 118 on the metalwork 11 And breakpoint 119 may be contained within the metal front frame 111 and metal edge frame 113, it is not arranged on the metal backing 112, So that the metal backing 112 forms all-metal construction, i.e., on described metal backing 112 not the fluting of insulation, broken string or Breakpoint so that the metal backing 112 can avoid due to slot, break or the setting of breakpoint and influence the complete of metal backing 112 Whole property and aesthetic property.

Embodiment 3-5

Figure 27 is referred to, the 3rd better embodiment of the invention provides a kind of antenna structure 500, and it can be applied to mobile electricity In the radio communication devices such as words, personal digital assistant 600, to launch, receive radio wave to transmit, exchange wireless signal.

Also referring to Figure 28 and Figure 29, the antenna structure 500 includes housing 51, the first feed-in source 53, the second feed-in Source 54, the first switching circuit 55 and the second switching circuit 57.The housing 51 can be the outer of the radio communication device 600 Shell.In the present embodiment, the housing 51 is made up of metal material.The housing 51 includes front frame 511, backboard 512 and frame 513.The front frame 511, backboard 512 and frame 513 can be integrally formed.The front frame 511, backboard 512 and frame 513 form the shell of the radio communication device 600.An opening (figure is not marked) is provided with the front frame 511, for housing State the display unit 601 of radio communication device 600.It is appreciated that the display unit 601 has a display plane, the display Plane is exposed to the opening, and the display plane is arranged substantially in parallel with the backboard 512.

The backboard 512 is oppositely arranged with the front frame 511.The backboard 512 is directly connected to frame 513, the back of the body There is no space between plate 512 and frame 513.The single sheet metal that the backboard 512 is formed in one, to appear camera lens 604 with the grade element of flash lamp 605 and perforate 606,607 is set.The backboard 512 sets any for splitting institute thereon State the fluting, broken string or breakpoint (Figure 29 please be join) of the insulation of backboard 512.The backboard 512 can be used as the He of antenna structure 500 The ground of the radio communication device 600.

In another embodiment, be can be set in the display unit 601 towards the side of backboard 512 for shielding electricity The radome (shielding mask) of magnetic disturbance or the center of the support display unit 601.The radome or center with Metal material makes.The radome or center can be connected with the backboard 512 to be used as the antenna structure 500 and institute State the ground of radio communication device 600.

The frame 513 is located between the front frame 511 and the backboard 512, and respectively around the front frame 511 and The periphery of the backboard 512 is set, to surround an appearance jointly with the display unit 601, the front frame 511 and backboard 512 514 between being empty.The accommodation space 514 is first to house the electronics such as the circuit board of the radio communication device 600, processing unit Part or circuit module are in the inner.

The frame 513 comprises at least terminal part 515, the first sidepiece 516 and the second sidepiece 517.In the present embodiment, The terminal part 515 is the bottom of the radio communication device 600.The terminal part 515 connects the front frame 511 and the back of the body Plate 512.First sidepiece 516 is oppositely arranged with second sidepiece 517, and both are respectively arranged at the terminal part 515 Both ends, preferred vertical are set.First sidepiece 516 is also connected the front frame 511 and the backboard with second sidepiece 517 512。

Port 518 and fluting 519 are further opened with the frame 513, breakpoint 520 is offered in the front frame 511.It is described Port 518 is opened in the medium position of the terminal part 515, and penetrates the terminal part 515.The radio communication device 600 Also include electronic component 603.In the present embodiment, the electronic component 603 is a USB module, and it is arranged at the accommodating sky Between in 514, it is and corresponding with the port 518, to cause the electronic component 603 to expose from the part of port 518.So User inserts a USB device by the port 518, and then establishes and be electrically connected with the electronic component 603.

In the present embodiment, the fluting 519 is laid on the terminal part 515, and connects the port 518, and Extend respectively to the sidepiece 517 of the first sidepiece 516 and second.It is appreciated that in other embodiments, the fluting 519 The terminal part 515 can be only arranged at, and does not extend to any one in the sidepiece 517 of the first sidepiece 516 and second, or Fluting 519 described in person is arranged at the terminal part 515, and only edge is extended in the sidepiece 517 of the first sidepiece 516 and second One of them.

The breakpoint 520 connects with the fluting 519, and extends to the cut-off front frame 511.In the present embodiment, institute State breakpoint 520 to set adjacent to second sidepiece 517, the front frame 511 is marked off two parts by said breakpoint 520, i.e., The long-armed T1 of metal and metal galianconism T2.Wherein, the front frame 511 of the side of breakpoint 520 is until it is extended to and the fluting 519 The corresponding parts of wherein end point E1 be collectively forming the long-armed T1 of the metal.The front frame 511 of the opposite side of breakpoint 520 is straight The part corresponding with another end points E2 of the fluting 519, which is extended to, to it forms the metal galianconism T2.In the present embodiment In, the position that the breakpoint 520 opens up not corresponds to the centre of the terminal part 515, therefore the long-armed T1 of metal length Length of the degree more than metal galianconism T2.In addition, (such as moulded filled with insulating materials in the fluting 519 and the breakpoint 520 Glue, rubber, glass, timber, ceramics etc., but do not limited with this As), and then separate the long-armed T1 of the metal, metal galianconism T2 and institute State backboard 512.

It is appreciated that in the present embodiment, the fluting 519 is opened in the frame 513 close to the one of the backboard 512 End, and the front frame 511 is extended to, to cause the long-armed T1 of the metal and metal galianconism T2 completely by the part front frame 511 Form.Certainly, in other embodiments, the fluting 519 opens up position and can be also adjusted according to real needs.For example, The fluting 519 is opened in the frame 513 close to one end of the backboard 512, and prolongs towards the place direction of front frame 511 Stretch, to cause the long-armed T1 of the metal and metal galianconism T2 to be made up of the part front frame 511 and the part frame 513.

It is appreciated that the lower half of the front frame 511 and frame 513 is except the port 518, fluting 519 and breakpoint 520 Fluting, broken string or the breakpoint for not setting other to insulate again in addition, therefore the lower half of the front frame 511 just only has a breakpoint 520, without other breakpoints.

It is long-armed that the first feed-in source 53 can be electrically connected to the metal by match circuit 59 (please join Figure 27 and Figure 31) T1 is the long-armed T1 feed-ins electric current of the metal close to one end of first sidepiece 516 so that the long-armed T1 of metal swashs A first mode is sent out to produce the radiation signal of the first frequency range.

The second feed-in source 54 can be electrically connected to the metal galianconism T2 close to described by match circuit (not shown) One end of breakpoint 520, and then be the metal galianconism T2 feed-in electric currents so that the metal galianconism T2 excite a second mode with Produce the radiation signal of the second frequency range.

Also referring to Figure 30, first switching circuit 55 is electrically connected to the long-armed T1 of metal medium position, its Including the first switch unit 551 and at least one first switching device 553.First switch unit 551 is electrically connected to the gold Belong to long-armed T1.First switching device 553 can be the combination of inductance, electric capacity or inductance and electric capacity.First switching It is parallel with one another between element 553, and its one end is electrically connected to first switch unit 551, the other end is electrically connected to backboard 512, that is, it is grounded.

Also referring to Figure 27 and Figure 31, one end of the match circuit 59 is electrically connected to the long-armed T1 of metal, the matching The other end of circuit 59 is electrically connected to the first feed-in source 53.One end of second switching circuit 57 is electrically connected to the matching electricity Road 59, the other end are electrically connected to backboard 512, that is, are grounded.In the present embodiment, second switching circuit 57 includes the second switching Unit 571 and at least one second switching device 573.Second switch unit 571 is electrically connected to the match circuit 59, with logical Cross the match circuit 59 and be electrically connected to the long-armed T1 of the metal.Second switching device 573 can be inductance, electric capacity or The combination of person's inductance and electric capacity.It is parallel with one another between second switching device 573, and its one end is electrically connected to described second and cut Unit 571 is changed, the other end is electrically connected to backboard 512, that is, is grounded.In this way, by controlling first switch unit 551 and second The switching of switch unit 571, it may be such that the long-armed T1 of the metal switches to the first different switching devices 553 and/or second cut Change element 573.Because each first switching device 553 and the second switching device 573 have different impedances, therefore pass through institute The switching of the first switch unit 551 and the second switch unit 571 is stated, can adjust the frequency of the first mode of the long-armed T1 of metal Section.Described adjustment frequency range is exactly to make the frequency range toward low frequency offset or past high frequency offset.

Figure 32 is the current trend schematic diagram of the antenna structure 500.Wherein, when electric current enters from the first feed-in source 53 After entering the long-armed T1 of the metal, the long-armed T1 of the metal will be flowed through, and flows to the breakpoint 520 (ginseng path I1), and then will be excited Go out the first mode to produce the radiation signal of the first frequency range.When electric current is short from the second feed-in source 54 into the metal After arm T2, electric current will flow through the front frame 511, the second sidepiece 517 successively and flow through to the backboard 512 at the back side (ginseng path I2), And then the second mode is inspired to produce the radiation signal of the second frequency range.In the present embodiment, the first mode is one low Frequency mode, first frequency range are 704-960MHz frequency ranges.The second mode is a medium-high frequency mode, and second frequency range is 1710-2690MHz frequency ranges.Because the antenna structure 500 is provided with the first switching circuit 55 and the second switching circuit 57, therefore Using the mutual cooperation of the switching circuit 57 of the first switching circuit 55 and second, and then switch the low of the long-armed T1 of metal Frequency mode, while the operation of medium, high frequency is not influenceed.

Figure 33 is referred to, in a wherein embodiment, the antenna structure 500 also includes resonance circuit 58, the resonance The quantity of circuit 58 is one, and the resonance circuit 58 includes the inductance L and electric capacity C being serially connected.The electricity of resonance circuit 58 Be connected between the long-armed T1 of the metal and backboard 512, and with first switch unit 551 and at least one first switching device 553 are arranged in parallel.

Figure 34 is referred to, in an other embodiment, the quantity of the resonance circuit 58 and first switching device 553 Quantity it is consistent, it is as multiple.Each resonance circuit 58 includes the inductance L1-Ln and electric capacity C1-Cn being serially connected.Each institute Resonance circuit 58 is stated to be electrically connected between the first switch unit 551 and backboard 512, and with corresponding first switching device 553 are arranged in parallel.It is appreciated that in Figure 30, Figure 31, Figure 33 and Figure 34, the radome or center can substitute the back of the body Plate 512 is grounded for the switching circuit 57 of the first switching circuit 55 and/or second.

Figure 35 is the S parameter in the resonance circuit 58 in parallel of the side of the first switching circuit 55 shown in Figure 33 The relation principle figure of (scattering parameter) between frequency.Where it is assumed that described in not increasing shown in Figure 33 when the antenna structure 500 During resonance circuit 58, the antenna structure 500 works in first mode (please join curve S351).When the antenna structure 500 increases When adding the resonance circuit 58, the resonance circuit 58 may be such that the long-armed T1 additional resonants of the metal go out a narrow frequency mode (i.e. 3rd mode, curve S352 please be join), to produce the radiation signal of the 3rd frequency range, you can be effectively increased the antenna structure 500 Application band, reach multifrequency or wideband application.

Figure 36 is that one in parallel of every side of one first switching device 553 is humorous in first switching circuit 55 shown in Figure 34 Shake circuit 58 when, relation principle figure of the S parameter (scattering parameter) between frequency.Where it is assumed that work as the antenna structure 500 when not increasing the resonance circuit 58 shown in Figure 34, and the antenna structure 500, which is operable with the first mode, (please join song Line S361).So when the antenna structure 500 increases the resonance circuit 58, the resonance circuit 58 may be such that the gold Belong to long-armed T1 additional resonants and go out the narrow frequency mode (curve S362 please be join), you can be effectively increased answering for the antenna structure 500 With frequency range, reach multifrequency or wideband application.In addition, by setting inductance L1-Ln inductance value and institute in the resonance circuit 58 Electric capacity C1-Cn capacitance is stated, the frequency range of the narrow frequency mode during first mode switching can be determined.For example, wherein one In individual embodiment, such as shown in Figure 36, the first switching can be made by setting inductance value and capacitance in the resonance circuit 58 When unit 551 switches to the first different switching devices 553, the narrow frequency mode of the antenna structure 500 also switches therewith, such as Fn can be moved to by f1, moving range is quite varied.

It is appreciated that in another embodiment, can also be by setting inductance value and electric capacity in the resonance circuit 58 The frequency range of value and the fixed narrow frequency mode, so which the first switching no matter first switch unit 551 switch to Element 553, the frequency range of the narrow frequency mode are all fixed.

It is, of course, understood that in other embodiments, the resonance circuit 58 is not limited to include the inductance L And electric capacity C, it can also be made up of other resonant elements.

Figure 37 is the current trend when antenna structure 500 is provided with the resonance circuit 58 and works in low frequency modal Schematic diagram.Obviously, after electric current T1 long-armed into the metal from the first feed-in source 53, it is long-armed that the metal will be flowed through T1, and the breakpoint 520 (ginseng path I3) is flowed to, and then the first mode is inspired to produce the radiation of the first frequency range letter Number.Further, since the antenna structure 500 is provided with the first switching circuit 55 and the second switching circuit 57, therefore using institute The mutual cooperation of the first switching circuit 55 and the second switching circuit 57 is stated, and then switches the low frequency modal of the long-armed T1 of metal, The operation of medium, high frequency is not influenceed simultaneously.In the present embodiment, the first mode is a low frequency modal, and first frequency range is 704-960MHz frequency ranges.

Figure 38 is that the electric current when antenna structure 500 is provided with the resonance circuit 58 and works in medium-high frequency frequency range is walked To schematic diagram.Obviously, after electric current enters the metal galianconism T2 from the second feed-in source 54, electric current will flow through described successively Front frame 511, the second sidepiece 517 are simultaneously flowed through to the backboard 512 at the back side (ginseng path I4), and then inspire second mode to produce the The radiation signal of two frequency ranges.Simultaneously after electric current enters the metal galianconism T2 from the second feed-in source 54, the electric current will The long-armed T1 of the metal is coupled to through the breakpoint 520, and is flowed through to the resonance circuit 58 in first switching circuit 55, finally Flow to the backboard 512 (ginseng path I5) at the back side.Thus by the coupling of the breakpoint 520, and the resonance circuit of arranging in pairs or groups 58, and then the 3rd mode is inspired to produce the radiation signal of the 3rd frequency range.In the present embodiment, the second mode is One intermediate frequency mode, second frequency range are 1710-2400MHz frequency ranges.3rd mode is a high frequency mode, the 3rd frequency Section is 2400-2690MHz frequency ranges.

Figure 39 is S parameter (scattering parameter) curve map when antenna structure 500 works in low frequency modal.Wherein, it is bent Line S391 is the S11 values when antenna structure 500 works in 704-746MHz frequency ranges.Curve S392 is the antenna structure 500 work in S11 values during 746-787MHz.When curve S393 is that the antenna structure 500 works in 824-894MHz frequency ranges S11 values.Curve S394 is the S11 values when antenna structure 500 works in 880-960MHz frequency ranges.Obviously, curve S391- S394 corresponds to four different frequency ranges respectively, and it is changeable to correspond to the switching circuit 57 of the first switching circuit 55 and second respectively Wherein four of multiple low frequency modals.

Figure 40 is the radiation efficiency figure when antenna structure 500 works in low frequency modal.Wherein, curve S401 is described Antenna structure 500 works in radiation efficiency during 704-746MHz frequency ranges.Curve S402 is that the antenna structure 500 works in Radiation efficiency during 746-787MHz.Curve S403 is the radiation when antenna structure 500 works in 824-894MHz frequency ranges Efficiency.Curve S404 is the radiation efficiency when antenna structure 500 works in 880-960MHz frequency ranges.Obviously, curve S401- S404 corresponds to four different frequency ranges respectively, and it is changeable to correspond to the switching circuit 57 of the first switching circuit 55 and second respectively Wherein four of multiple low frequency modals.

Figure 41 is S parameter (the scattering ginseng when antenna structure 500 works in middle and high frequency range (i.e. 1710-2690MHz) Number) curve map.Figure 42 is the radiation efficiency figure when antenna structure 500 works in middle and high frequency range (i.e. 1710-2690MHz).

Obviously, it was found from Figure 39 to Figure 42, the antenna structure 500 is operable with corresponding low frequency band, such as 704- 746MHz frequency ranges, 746-787MHz frequency ranges, 824-894MHz frequency ranges and 880-960MHz frequency ranges.In addition, the antenna structure 500 may also be operated in middle and high frequency range (1710-2690MHz), that is, cover to basic, normal, high frequency, and frequency range is wider, and when described When antenna structure 500 works in above-mentioned frequency range, its working frequency can meet Antenna Operation design requirement, and have preferable spoke Penetrate efficiency.

Also referring to Figure 43, the antenna structure 500a provided for the 4th preferred embodiment of the invention.The antenna structure 500a includes housing 51, the first feed-in source 53, the second feed-in source 54, the first switching circuit 55 and the second switching circuit 57.It is described Housing 51 includes front frame 511, backboard 512 and frame 513.The frame 513 comprise at least terminal part 515, the first sidepiece 516 with And second sidepiece 517.Fluting 519 is further opened with the frame 513, breakpoint 520 is further opened with the front frame 511.It is described The front frame 511 is divided into two parts by breakpoint 520, and this two parts includes the long-armed T1 of metal and metal galianconism T2.

It is appreciated that the antenna structure 500a and antenna structure 500 difference are, the antenna structure 500a is also wrapped Include the first radiant body 61, the 3rd feed-in source 62, isolation part 63, the second radiant body 64 and the 4th feed-in source 65.

It is appreciated that first radiant body 61 is arranged in the accommodation space 514 that the housing 51 surrounds, and neighbouring institute Metal galianconism T2 settings are stated, and are arranged at intervals with the backboard 512.First radiant body 61 includes the first irradiation unit 610, the Two irradiation units 611 and the 3rd irradiation unit 612.First irradiation unit 610 is substantially L-shaped, and it includes the first radiation arm 613 and Two radiation arms 614.First radiation arm 613 is substantially in vertical bar shape, and its one end is electrically connected to the isolation part 63, and along parallel The terminal part 515 extends with the parallel backboard 512 and close to the direction of first sidepiece 516.Second radiation arm 614 be substantially in vertical bar shape, itself and the 613 non-co-planar setting of the first radiation arm.Specifically, second radiation arm 614 is vertical First radiation arm 613 is connected to close to the end of first sidepiece 516, and along vertical and away from the backboard 512 Direction extends.

Second irradiation unit 611 is generally U-shaped, including the first radiant section 615, the second radiant section being sequentially connected electrically 616 and the 3rd radiant section 617.First radiant section 615, the second radiant section 616 and the 3rd radiant section 617 is coplanar sets Put, and be arranged in the plane parallel with the place plane of the first radiation arm 613.First radiant section 615 is substantially in straight Strip, and be arranged in parallel with the terminal part 515.One end vertical connection of first radiant section 615 to described second radiation End of the arm 614 away from first radiation arm 613, and extend along close to the direction of first sidepiece 516.Second spoke It is in vertical bar shape to penetrate section 616, its one end vertical connection to end of first radiant section 615 away from second radiation arm 614, The other end along parallel second sidepiece 517 and away from the terminal part 515 direction extend, and then with first radiant section 615 form a L-type structure.3rd radiant section, the 617 generally rectangular shaped strip, its one end are connected to second radiant section 616 one end away from first radiant section 615, the other end is along parallel first radiant section 615 and close to second side The direction extension in portion 517, i.e., described 3rd radiant section 617 and first radiant section 615 are respectively arranged at second radiation The same side of section 616, and it is respectively arranged at the both ends of second radiant section 616.

3rd irradiation unit 612 is substantially L-shaped, and it includes the first linkage section 618 and the second linkage section 619.Described One linkage section, 618 generally rectangular shaped strip, its one end are electrically connected to the company of the radiant section 615 of the second radiation arm 614 and first Place is met, the other end extends along parallel second radiant section 616 and close to the direction of the 3rd radiant section 617, until crossing 3rd radiant section 617.Second linkage section 619 is substantially in vertical bar shape, and its one end vertical connection to described first connects 618 one end away from the first radiant section 615 of section, the other end is along parallel first radiant section 615 and close to the described second radiation The direction extension of section 616, until substantially concordant with the end of the 3rd radiant section 617.

The one end in the 3rd feed-in source 62 is used to be electrically connected to first radiant body by match circuit (not shown) 61, such as the first linkage section 618 of first radiant body 61, the other end is electrically connected to the isolation part 63, to present respectively Enter electric current to the irradiation unit 612 of the second irradiation unit 611 and the 3rd, and then excite corresponding operation mode, such as WIFI 2.4GHz mode and WIFI 5GHz mode.

It is appreciated that in the present embodiment, because the second feed-in source 54 and the 3rd feed-in source 62 are each resonated Frequency band be closer to, easily produce isolation between antennas puzzlement.Therefore, the isolation part 63 is to cause two feed-in sources, i.e., The structure current path in the second feed-in source 54 and the 3rd feed-in source 62 extends, to lift metal galianconism T2 and the first spoke Isolation between beam 61.

It is appreciated that the isolation part 63 can have any shape and size, or it is a planar metal sheet, also can is gold Belong to the shapes such as shell, it is only necessary to ensure that the isolation part 63 can reach and extend the second feed-in source 54 and the 3rd feed-in source 62 Structure current path, to improve the isolation between metal galianconism T2 and the first radiant body 61.For example, in the present embodiment In, in bulk, it is arranged on the backboard 512 for the isolation part 63, and by second sidepiece 517 towards first side The extension of portion 516 forms.In other embodiments, the isolation part 63 may be disposed on the center.

Second radiant body 64 is arranged in the accommodation space 514 that the housing 51 surrounds, and the neighbouring metal is grown Arm T1 is set, and is arranged at intervals with the backboard 512.In the present embodiment, second radiant body 64 is substantially in vertical bar shape, its It is be arranged in parallel with the terminal part 515.One end of second radiant body 64 is connected to the front frame 511 close to the described first feedback Enter the position in source 53, the other end extends towards second sidepiece 517.The 4th feed-in source 65 is arranged at the front frame 511 On, and second radiant body 64 is electrically connected to, for for the feed-in electric current of the second radiant body 64.

It is appreciated that when the antenna structure 500a works in low frequency modal, its current trend and the antenna structure 500 current trend when working in low frequency modal is consistent, specifically see Figure 37, will not be repeated here.

It is appreciated that current trend when Figure 44 works in 1710-2400MHz frequency ranges for the antenna structure 500a is illustrated Figure.Obviously, after electric current enters the metal galianconism T2 from the second feed-in source 54, electric current will flow through the front frame successively 511st, the second sidepiece 517 and flow through to the backboard 512 at the back side (ginseng path I6), and then inspire second mode to produce the second frequency The radiation signal of section.Simultaneously after electric current enters the metal galianconism T2 from the second feed-in source 54, the electric current will be through this Breakpoint 520 is coupled to the long-armed T1 of the metal, and flows through to the resonance circuit 58 in first switching circuit 55, eventually flows to The backboard 512 (ginseng path I7) at the back side.Thus by the coupling of the breakpoint 520, and the resonance circuit 58 of arranging in pairs or groups, enter And the 3rd mode is inspired to produce the radiation signal of the 3rd frequency range.In the present embodiment, the second mode is an intermediate frequency Mode, second frequency range are 1710-2170MHz frequency ranges.3rd mode is a high frequency mode, and the 3rd frequency range is 2300-2400MHz frequency ranges (i.e. the frequency ranges of LTE-A Band 40).

Figure 45 is the current trend schematic diagram when antenna structure 500a works in double frequency WIFI mode.Obviously, electricity is worked as After stream enters the first radiant body 61 from the 3rd feed-in source 62, electric current will flow through first radiant section 615, the second spoke successively The radiant section 617 (ginseng path I8) of section 616 and the 3rd is penetrated, and then inspires corresponding 4th mode to produce the spoke of the 4th frequency range Penetrate signal.In the present embodiment, the 4th mode is WIFI 2.4GHz mode.In addition, electric current is from the 3rd feed-in source 62 Into after the first radiant body 61, the linkage section 619 (ginseng path I9) of the first linkage section 618 and second will be also flowed through successively, And then corresponding 5th mode is inspired to produce the radiation signal of the 5th frequency range.In the present embodiment, the 5th mode is WIFI 5GHz mode.

Also referring to 46, current trend signal during 2496-2690MHz frequency ranges is worked in for the antenna structure 500a Figure.Obviously, after electric current enters the second radiant body 64 from the 4th feed-in source 65, second radiant body 64 will be flowed to One end (ginseng path I10) away from the 4th feed-in source 65, and then the 6th mode is inspired to produce the radiation of the 6th frequency range Signal.In the present embodiment, the 6th mode is high frequency mode.

It is appreciated that when the antenna structure 500a works in low frequency modal, its S parameter (scattering parameter) curve map with And S parameter (scattering parameter) curve map and spoke of the radiation efficiency figure when working in low frequency modal with the antenna structure 500 It is consistent to penetrate efficiency chart, specifically see 39 and Figure 40, will not be repeated here.

Figure 47 is that the antenna structure 500a works in 1710-2170MHz frequency ranges and 2300-2400MHz frequency ranges (i.e. LTE- A intermediate frequencies and the frequency ranges of Band 40) when S parameter (scattering parameter) curve map.Figure 48 is that the antenna structure 500a is worked in Radiation efficiency figure when 1710-2170MHz frequency ranges and 2300-2400 frequency ranges (i.e. LTE-A intermediate frequencies and the frequency ranges of Band 40).

Figure 49 is the S ginsengs when antenna structure 500a works in the WIFI 2.4GHZ frequency ranges and WIFI 5GHz frequency ranges Number (scattering parameter) curve map.Figure 50 is that the antenna structure 500a works in the WIFI 2.4GHZ frequency ranges and WIFI 5GHz Radiation efficiency figure during frequency range.

Figure 51 is the S parameter when antenna structure 500a works in LTE-A Band41 mode (2496-2690MHz) (scattering parameter) curve map.When Figure 52 is that the antenna structure 500a works in LTE-A Band41 mode (2496-2690MHz) Radiation efficiency figure.

Obviously, from Figure 39 to Figure 40, and Figure 47 to Figure 52 is understood, the antenna structure 500a is operable with corresponding low Frequent section, such as 704-746MHz frequency ranges, 746-787MHz frequency ranges, 824-894MHz frequency ranges and 880-960MHz frequency ranges.Separately Outside, the antenna structure 500a may also be operated in Mid Frequency (1710-2170MHz), high-frequency band (2300-2400MHz and 2496-2690MHz) and WIFI 2.4/5GHz two-bands, that is, cover to basic, normal, high frequency, WIFI 2.4/5GHz double frequencies, frequency Rate scope is wider, and when the antenna structure 500a works in above-mentioned frequency range, its working frequency can meet that Antenna Operation is set Meter requires, and has preferable radiation efficiency.

Also referring to Figure 53, the antenna structure 500b provided for the 5th preferred embodiment of the invention.The antenna structure 500b includes housing 51, the first feed-in source 53, the second feed-in source 54, the first switching circuit 55, the second switching circuit 57, the first spoke Beam 61, the 3rd feed-in source 62, isolation part 63, the second radiant body 64, the 4th feed-in source 65 and the 3rd switching circuit 66.It is described Housing 51 includes front frame 511, backboard 512 and frame 513.The frame 513 comprise at least terminal part 515, the first sidepiece 516 with And second sidepiece 517.Fluting 519 is further opened with the frame 513, breakpoint 520 is further opened with the front frame 511.It is described The front frame 511 is divided into two parts by breakpoint 520, and this two parts includes the long-armed T1 of metal and metal galianconism T2.

It is appreciated that the antenna structure 500b and antenna structure 500a difference is, the antenna structure 500b is also Including the 3rd switching circuit 66.One end of 3rd switching circuit 66 is electrically connected to second radiant body 64, other end electricity The backboard 512 is connected to, that is, is grounded.3rd switching circuit 66 is used for the high frequency mode for adjusting second radiant body 64 Frequency range, its particular circuit configurations and operation principle see the description of Figure 30 the first switching circuit 55, will not be repeated here.

It is appreciated that when the antenna structure 500b works in low frequency modal, its current trend and the antenna structure 500 current trend when working in low frequency modal is consistent, specifically see Figure 37, will not be repeated here

It is appreciated that current trend when Figure 54 works in 1710-2170MHz frequency ranges for the antenna structure 500b is illustrated Figure.Obviously, after electric current enters the metal galianconism T2 from the second feed-in source 54, electric current will flow through the front frame successively 511st, the second sidepiece 517 and flow through to the backboard 512 at the back side (ginseng path I11), and then inspire second mode to produce second The radiation signal of frequency range.Simultaneously after electric current is from the second feed-in source 54 entrance metal galianconism T2, the electric current will be through The breakpoint 520 is coupled to the long-armed T1 of the metal, and flows through to the resonance circuit 58 in first switching circuit 55, final stream Backboard 512 (ginseng path I12) rearwardly.Thus by the coupling of the breakpoint 520, and the resonance circuit of arranging in pairs or groups 58, and then the 3rd mode is inspired to produce the radiation signal of the 3rd frequency range.In the present embodiment, the second mode is one Intermediate frequency mode, second frequency range are 1710-1990MHz frequency ranges.3rd mode is an intermediate frequency mode, the 3rd frequency range For 2110-2170MHz frequency ranges.

It is appreciated that when the antenna structure 500b works in double frequency WIFI mode, its current trend and the antenna Current trend when structure 500a works in double frequency WIFI mode is consistent, specifically see Figure 45, will not be repeated here.

Also referring to 55, when working in 2300-2400MHz and 2496-2690MHz frequency ranges for the antenna structure 500b Current trend schematic diagram.Obviously, after electric current enters the second radiant body 64 from the 4th feed-in source 65, by flowing to The one end (ginseng path I13) of the second radiant body 64 away from the 4th feed-in source 65 is stated, and then inspires the 6th mode to produce The radiation signal of 6th frequency range.In the present embodiment, the 6th mode is high frequency mode.Further, since the antenna structure 500b is provided with the 3rd switching circuit 66 of ground connection, therefore switches the high frequency mode using the 3rd switching circuit 66, Such as it may be such that the antenna structure 500b switches to 2300-2400MHz frequency ranges and/or the frequency range (2496- of LTE-ABand 41 2690MHz), and the high frequency mode is existed simultaneously with the intermediate frequency mode and the mode of LTE-A Band 40.

It is appreciated that when the antenna structure 500b works in low frequency modal, its S parameter (scattering parameter) curve map with And S parameter (scattering parameter) curve map and spoke of the radiation efficiency figure when working in low frequency modal with the antenna structure 500 It is consistent to penetrate efficiency chart, specifically see 39 and Figure 40, will not be repeated here.

Figure 56 is S parameter (scattering parameter) curve when the antenna structure 500b works in 1710-2170MHz frequency ranges Figure.Figure 57 is the radiation efficiency figure when antenna structure 500b works in 1710-2170MHz frequency ranges.

It is appreciated that when the antenna structure 500b works in WIFI 2.4GHZ frequency ranges and WIFI 5GHz frequency ranges, its S Parameter (scattering parameter) curve map and radiation efficiency figure worked in the antenna structure 500a WIFI 2.4GHZ frequency ranges and S parameter (scattering parameter) curve map and radiation efficiency figure during WIFI 5GHz frequency ranges is consistent, specifically see 49 and figure 50, it will not be repeated here.

Figure 58 is the S parameter when antenna structure 500b works in 2300-2400MHz and 2496-2690MHz frequency ranges (scattering parameter) curve map.When Figure 59 is that the antenna structure 500b works in 2300-2400MHz and 2496-2690MHz frequency ranges Radiation efficiency figure.

As described in previous embodiments, the long-armed T1 of metal can excite first mode to produce the radiation signal of low frequency band, Metal galianconism T2 can excite second mode and the 3rd mode to produce the radiation signal of intermediate-frequency band and high-frequency band, the second radiation Body 64 can inspire the 6th mode to produce the radiation signal of high-frequency band.Therefore radio communication device 600 can be used and drill for a long time Enter technology upgrading version (LTE-Advanced) carrier aggregation (CA, Carrier Aggregation) technology simultaneously it is multiple not With UHF band reception or wireless signal is sent to increase transmitting bandwidth.More specifically, the load can be used in radio communication device 600 Ripple polymerization technique and using the long-armed T1 of the metal, metal galianconism T2 and the second radiant body 64 wherein at least both and meanwhile multiple Different frequency range receives or sent wireless signal.

It is appreciated that in other embodiments, first radiant body 61 and second radiant body 64 and described the The position of three switching circuits 66 can exchange, and the position of the isolation part 63 is constant.Specifically, first radiant body 61 is set It is placed in the accommodation space 514 that the housing 51 surrounds, its shape and symmetrical (left and right upset) shown in Figure 17, and neighbouring institute The long-armed T1 of metal is stated to set.First radiation arm 613 is electrically connected to one end of the isolation part 63 more in first radiant body 61 Shift to and be electrically connected to the front frame 511.The 3rd feed-in source 62 is arranged in the metal front frame 511, and is electrically connected to institute State the first linkage section 618 of the first radiant body 61.

One end of second radiant body 64 is connected to the isolation part 63, and the other end prolongs towards first sidepiece 516 Stretch.The one end in the 4th feed-in source 65 is used to be electrically connected to second radiant body 64 by match circuit (not shown), separately One end is electrically connected to the isolation part 63, for for the feed-in electric current of the second radiant body 64.One end of 3rd switching circuit 66 Second radiant body 64 is electrically connected to, the other end is connected to the backboard 512.

In addition, the fluting 519 and breakpoint 520 on the housing 51 may be contained within the front frame 511 and frame 513, and It is not provided with the backboard 512 so that the backboard 512 forms all-metal construction, i.e., is not insulated on described backboard 512 Fluting, broken string or breakpoint so that the backboard 512 can avoid due to slot, break or the setting of breakpoint and influence backboard 512 Integrality and aesthetic property.

Embodiment 6-7

Figure 60 is referred to, the 6th better embodiment of the invention provides a kind of antenna structure 700, and it can be applied to mobile electricity In the radio communication devices such as words, personal digital assistant 800, to launch, receive radio wave to transmit, exchange wireless signal.

Also referring to Figure 61 and Figure 62, the antenna structure 700 includes housing 71, the first feed-in source S1, the first radiation Body 73, the first switching circuit 75, the second switching circuit 76, the second radiant body 78, the second feed-in source S2 and the 3rd switching circuit 79.The housing 71 can be the shell of the radio communication device 800.In the present embodiment, the housing 71 is by metal material Material is made.The housing 71 includes front frame 711, backboard 712 and frame 713.The front frame 711, backboard 712 and frame 713 can To be integrally formed.The front frame 711, backboard 712 and frame 713 form the shell of the radio communication device 800.Institute State and an opening (figure is not marked) is provided with front frame 711, for housing the display unit 801 of the radio communication device 800.Can be with Understand, the display unit 801 has a display plane, and the display plane is exposed to the opening, and the display plane with it is described Backboard 712 is arranged substantially in parallel.

The backboard 712 is oppositely arranged with the front frame 711.The backboard 712 is directly connected to frame 713, the back of the body There is no space between plate 712 and frame 713.The single sheet metal that the backboard 712 is formed in one, the backboard 712 is aobvious Reveal camera lens 804 and the grade element of flash lamp 805 and perforate 806,807 is set, the backboard 712 sets any thereon For fluting, broken string or the breakpoint (Figure 62 please be join) of the insulation for splitting the backboard 712.The backboard 712 can be used as the day The ground of cable architecture 700 and the radio communication device 800.

In another embodiment, be can be set in the display unit 801 towards the side of backboard 712 for shielding electricity The radome (shielding mask) of magnetic disturbance or the center of the support display unit 801.The radome or center with Metal material makes.The radome or center can be connected with the backboard 712 to be used as the antenna structure 700 and institute State the ground of radio communication device 800.

The frame 713 is located between the front frame 711 and the backboard 712, and respectively around the front frame 711 and The periphery of the backboard 712 is set, to surround an appearance jointly with the display unit 801, the front frame 711 and backboard 712 714 between being empty.The accommodation space 714 is first to house the electronics such as the circuit board of the radio communication device 800, processing unit Part or circuit module are in the inner.

The frame 713 comprises at least terminal part 715, the first sidepiece 716 and the second sidepiece 717.In the present embodiment, The terminal part 715 is the bottom of the radio communication device 800.The terminal part 715 connects the front frame 711 and the back of the body Plate 712.First sidepiece 716 is oppositely arranged with second sidepiece 717, and both are respectively arranged at the terminal part 715 Both ends, preferred vertical are set.First sidepiece 716 is also connected the front frame 711 and the backboard with second sidepiece 717 712。

Port 718 and fluting 719 are further opened with the frame 713, breakpoint 720 is offered in the front frame 711.It is described Port 718 is opened in the medium position of the terminal part 715, and penetrates the terminal part 715.The radio communication device 800 Also include electronic component 803.In the present embodiment, the electronic component 803 is a USB module, and it is arranged at the accommodating sky Between in 714, it is and corresponding with the port 718, to cause the electronic component 803 to expose from the part of port 718.So User can be inserted a USB device by the port 718, and then is established and be electrically connected with the electronic component 803.

In the present embodiment, the fluting 719 is laid on the terminal part 715, and connects the port 718, and Extend respectively to the sidepiece 717 of the first sidepiece 716 and second.It is appreciated that in other embodiments, the fluting 719 The terminal part 715 can be only arranged at, and does not extend to any one in the sidepiece 717 of the first sidepiece 716 and second, or Fluting 719 described in person is arranged at the terminal part 715, and only edge is extended in the sidepiece 717 of the first sidepiece 716 and second One of them.

The breakpoint 720 connects with the fluting 719, and extends to the cut-off front frame 711.In the present embodiment, institute State breakpoint 720 to set adjacent to second sidepiece 717, the front frame 711 is marked off two parts by said breakpoint 720, i.e., The long-armed F1 of metal and metal galianconism F2.Wherein, the front frame 711 of the side of breakpoint 720 is until it is extended to and the fluting 719 The corresponding parts of wherein end point D1 be collectively forming the long-armed F1 of the metal.The front frame 711 of the opposite side of breakpoint 720 is straight The part corresponding with another end points D2 of the fluting 719, which is extended to, to it forms the metal galianconism F2.In the present embodiment In, the position that the breakpoint 720 opens up not corresponds to the centre of the terminal part 715, therefore the long-armed F1 of metal length Length of the degree more than metal galianconism F2.In addition, (such as moulded filled with insulating materials in the fluting 719 and the breakpoint 720 Glue, rubber, glass, timber, ceramics etc., but do not limited with this As), and then separate the long-armed F1 of the metal, metal galianconism F2 and institute State backboard 712.

It is appreciated that in the present embodiment, the fluting 719 is opened in the frame 713 close to the one of the backboard 712 End, and the front frame 711 is extended to, to cause the long-armed F1 of the metal and metal galianconism F2 completely by the part front frame 711 Form.Certainly, in other embodiments, the fluting 719 opens up position and can be also adjusted according to real needs.For example, The fluting 719 is opened in the frame 713 close to one end of the backboard 712, and prolongs towards the place direction of front frame 711 Stretch, to cause the long-armed F1 of the metal and metal galianconism F2 to be made up of the part front frame 711 and the part frame 713.

It is appreciated that the lower half of the front frame 711 and frame 713 is except the port 718, fluting 719 and breakpoint 720 Fluting, broken string or the breakpoint for not setting other to insulate again in addition, therefore the lower half of the front frame 711 just only has a breakpoint 720, without other breakpoints.

In the present embodiment, the first feed-in source S1 is arranged in the accommodation space 714, and positioned at electronics member Between the sidepiece 717 of part 803 and second.The first feed-in source S1 electrically connects with first radiant body 73, to for described The feed-in electric current of one radiant body 73.

First radiant body 73 is arranged in the accommodation space 714, and is located at the side of electronic component 803 and second Between portion 717.First radiant body 73 includes the first irradiation unit 731 and the second irradiation unit 733.First irradiation unit 731 One end the first feed-in source S1 is electrically connected to by match circuit 81, the other end is coupled with the long-armed F1 intervals of the metal and set Put.In this way, after electric current is from the first feed-in source S1 feed-ins, electric current will flow through the match circuit 81 and first and radiate Portion 731, it is in turn coupled to the long-armed F1 of the metal.The F1 long-armed with the metal of first irradiation unit 731 forms one and couples knot Structure, to intercouple and then the first mode of resonant excitation one is to produce the radiation signal of the first frequency range.In the present embodiment, described One mode is LTE-A low frequency modals, and first frequency range is 704-960MHz frequency ranges.

In the present embodiment, first irradiation unit 731 includes the first radiant section 734, the second radiant section 735 and the 3rd Radiant section 736.The 736 coplanar setting of first radiant section 734, the second radiant section 735 and the 3rd radiant section.First spoke 734 generally rectangular shaped strip of section is penetrated, its one end is electrically connected to the first feed-in source S1, other end edge by the match circuit The direction of the parallel terminal part 715 and the close electronic component 803 extends, until crossing the breakpoint 720.Described second 735 generally rectangular shaped strip of radiant section, its one end vertical connection to first radiant section 734 is away from the first feed-in source S1 One end, the other end extends along parallel second sidepiece 717 and close to the metal long-armed F1 direction, and then with described the One radiant section 734 forms L-shaped structure.3rd radiant section, the 736 generally rectangular shaped strip.3rd radiant section 736 and institute State the long-armed F1 intervals of metal and be arranged in parallel.The vertical connection of 3rd radiant section 736 is to second radiant section 735 away from institute The end of the first radiant section 734 is stated, and is extended respectively along close to the direction of the sidepiece 717 of the first sidepiece 716 and second, and then Generally T-shaped structure is formed with second radiant section 735.

In the present embodiment, second irradiation unit 733 is an electric capacity.One end electrical connection of second irradiation unit 733 To the junction of the match circuit and first radiant section 734 of the first feed-in source S1, the other end is electrically connected to the gold Belong to galianconism F2.In this way, after electric current is from the first feed-in source S1 feed-ins, electric current will flow through second irradiation unit 733, and then Flow into the metal galianconism F2 so that the metal galianconism F2 excites a second mode to produce the radiation signal of the second frequency range. In the present embodiment, the second mode is LTE-A intermediate frequency mode, and second frequency range is 1710-1990MHz frequency ranges.In addition, stream The electric current for crossing second irradiation unit 733 and the metal galianconism F2 will also be grown by the breakpoint 720 coupled to the metal Arm F1, and then excite one the 3rd mode to produce the radiation signal of the 3rd frequency range.In the present embodiment, the 3rd mode is another One LTE-A intermediate frequency mode, the 3rd frequency range are 2110-2170MHz frequency ranges.In this way, the second mode and the 3rd mode will Form the application of broadband resonance, i.e. 1710-2170 frequency ranges.

Also referring to Figure 63, first switching circuit 75 is electrically connected to the long-armed F1 of metal medium position, its Including the first switch unit 751 and at least one first switching device 753.First switch unit 751 is electrically connected to the gold Belong to long-armed F1.First switching device 753 can be the combination of inductance, electric capacity or inductance and electric capacity.First switching It is parallel with one another between element 753, and its one end is electrically connected to first switch unit 751, the other end is electrically connected to backboard 712, that is, it is grounded.

Also referring to Figure 64, one end of the match circuit 81 is electrically connected to the first feed-in source S1, the matching The other end of circuit 81 is electrically connected to first irradiation unit 731.One end of second switching circuit 76 is electrically connected to described Match circuit 81, the other end are electrically connected to backboard 712, that is, are grounded.In the present embodiment, second switching circuit 76 includes the Two switch units 761 and at least one second switching device 763.Second switch unit 761 is electrically connected to the match circuit 81, to be electrically connected to first irradiation unit 81 by the match circuit 81.Second switching device 763 can be electricity The combination of sense, electric capacity or inductance and electric capacity.It is parallel with one another between second switching device 763, and its one end is electrically connected to Second switch unit 761, the other end are electrically connected to backboard 712, that is, are grounded.In this way, by controlling first switching single The switching of the switch unit 761 of member 751 and second, may be such that the long-armed F1 of the metal switches to the first different switching devices 753 And/or second switching device 763.Because each first switching device 753 and the second switching device 763 have different resistances It is anti-, therefore by the switching of the switch unit 761 of the first switch unit 751 and second, can adjust the long-armed F1's of metal The frequency range of first mode.Described adjustment frequency range is exactly to make the frequency range toward low frequency offset or past high frequency offset.It is it is appreciated that described First switching circuit 75 and the second switching circuit 76 can be individually switched or switch together.

It is appreciated that also referring to Figure 65, in a wherein embodiment, first switching circuit 75 also includes resonance Circuit 77, the quantity of the resonance circuit 77 is one, and the resonance circuit 77 includes the inductance L and electric capacity C being serially connected.Institute Resonance circuit 77 is stated to be electrically connected between the long-armed F1 of the metal and backboard 712, and with first switch unit 751 and at least One first switching device 753 is arranged in parallel.Refer to Figure 66, in an other embodiment, the quantity of the resonance circuit 77 with The quantity of first switching device 753 is consistent, as multiple.Each resonance circuit 77 includes the inductance L1-Ln being serially connected And electric capacity C1-Cn.Each described resonance circuit 77 is respectively electrically connected to first switch unit 751 and backboard 712, and with Corresponding first switching device 753 is arranged in parallel.

In Figure 63, Figure 64, Figure 65 and Figure 66, the radome or center can substitute the backboard 712 for described First switching circuit 75 and/or the second switching circuit 76 are grounded.

Figure 67 is the first switch unit 751 and the first switching device 753 in first switching circuit 75 shown in Figure 65 During one resonance circuit 77 of parallel connection of side, relation principle figure of the S parameter (scattering parameter) between frequency.Where it is assumed that When the antenna structure 700 does not increase the resonance circuit 77 shown in Figure 65, the antenna structure 700 works in first mode (curve S671 please be join).When the antenna structure 700 increases the resonance circuit 77, the resonance circuit 77 may be such that described The long-armed F1 of metal coordinate the breakpoint 720 and additional resonant go out a narrow frequency mode (the 3rd mode, i.e. 2110-2170MHz frequency ranges, Please join curve S672), to produce the radiation signal of the 3rd frequency range, you can the application band of the antenna structure 700 is effectively increased, Reach multifrequency or wideband application.

Figure 68 is that one in parallel of every side of one first switching device 753 is humorous in first switching circuit 75 shown in Figure 66 Shake circuit 77 when, relation principle figure of the S parameter (scattering parameter) between frequency.Where it is assumed that work as the antenna structure 700 when not increasing the resonance circuit 77 shown in Figure 66, and the antenna structure 700, which is operable with the first mode, (please join song Line S681).So when the antenna structure 700 increases the resonance circuit 77, the resonance circuit 77 may be such that the gold Belong to that long-armed F1 coordinates the breakpoint 720 and additional resonant goes out the narrow frequency mode (please join curve S682), that is, 2110- 2170MHz frequency ranges, you can be effectively increased the application band of the antenna structure 700, reach multifrequency or wideband application.

In addition, by setting inductance L1-Ln inductance value and the electric capacity of the electric capacity C1-Cn in the resonance circuit 77 Value, the frequency range of the narrow frequency mode during first mode switching can be determined.For example, in one of the embodiments, such as scheme Shown in 68, by setting inductance value and capacitance in the resonance circuit 77 the first switch unit 751 can be made to switch to difference The first switching device 753 when, the narrow frequency mode of the antenna structure 700 also switches therewith, such as fn can be moved to by f1, move Dynamic scope is quite varied.

It is appreciated that in another embodiment, can also be by setting inductance value and electric capacity in the resonance circuit 77 The frequency range of value and the fixed narrow frequency mode, so which the first switching no matter first switch unit 751 switch to Element 753, the frequency range of the narrow frequency mode are all fixed.

It is, of course, understood that in other embodiments, the resonance circuit 77 is not limited to include the inductance L And electric capacity C, it can also be made up of other resonant elements.

In the present embodiment, second radiant body 78 is arranged in the accommodation space 714 that the housing 71 surrounds, and adjacent The nearly long-armed F1 of metal is set, and is arranged at intervals with the backboard 712.In the present embodiment, second radiant body 78 is big Cause is in vertical bar shape, and it be arranged in parallel with the terminal part 715.One end of second radiant body 78 is connected to the front frame 711 Close to the position of the end D1, the other end extends towards second sidepiece 717.The second feed-in source S2 is arranged at described In front frame 711, and second radiant body 78 is electrically connected to, for for the feed-in electric current of the second radiant body 78.In this way, work as electric current certainly After the second feed-in source S2 enters, second radiant body 78 will be flowed through, and then cause second radiant body 78 to excite one 4th mode is to produce the radiation signal of the 4th frequency range.In the present embodiment, the 4th mode is LTE-A high frequency mode, institute It is 2300-2400MHz frequency ranges and 2496-2690MHz frequency ranges to state the 4th frequency range.

One end of 3rd switching circuit 79 is electrically connected to the medium position of second radiant body 78, and the other end is electrically connected The backboard 712 is connected to, or is electrically connected to the radome or center, that is, is grounded.3rd switching circuit 79 is used to adjust The frequency range of the high frequency mode of second radiant body 78, its particular circuit configurations and operation principle see Figure 63 the first switching The description of circuit 75, will not be repeated here.

Figure 69 is the current trend schematic diagram when antenna structure 700 works in low frequency modal.Obviously, when electric current is from institute After stating the first feed-in source S1 entrance, the first radiant section 734, the second radiant section 735 of first irradiation unit 731 will be flowed through successively And the 3rd radiant section 736, and the long-armed F1 of the metal is coupled to through the 3rd radiant section 736, then it is long-armed from the metal F1 flows through first sidepiece 716, finally flows to the backboard 712 (ginseng path J1) at the back side, and then inspires described first Mode is to produce the radiation signal of the first frequency range.Further, since the antenna structure 700 is provided with the first switching circuit 75 and Two switching circuits 76, therefore using the mutual cooperation of the switching circuit 76 of the first switching circuit 75 and second, and then switch The low frequency modal of the long-armed F1 of metal, while the operation of medium, high frequency is not influenceed.

Figure 70 is that the antenna structure 700 works in intermediate frequency mode (1710-2170MHz frequency ranges and 2110-2170MHz frequencies Section) when current trend schematic diagram.Obviously, after electric current enters from the first feed-in source S1, electric current will be through second spoke Penetrate portion 733 and flow directly into the metal galianconism F2, pass through second sidepiece 717, finally flow into the (ginseng of backboard 712 at the back side Path J2), and then second mode is inspired to produce the radiation signal of the second frequency range.Work as electric current simultaneously from the first feed-in source After S1 enters, electric current will flow into the metal galianconism F2 through second irradiation unit 733, then through the breakpoint 720 coupled to described The long-armed F1 of metal, and flow through the (ginseng of backboard 712 for the resonance circuit 77 in first switching circuit 75, eventually flowing to the back side Path J3).Thus by the coupling of the breakpoint 720, and the resonance circuit 77 of arranging in pairs or groups, and then cause the metal length Arm F1 inspires the 3rd mode to produce the radiation signal of the 3rd frequency range.Obviously, understood with reference to Figure 63 and Figure 70, the back of the body Ground of the plate 712 equivalent to the antenna structure 700.

Figure 71 is that the antenna structure 700 works in high frequency mode (2300-2400MHz frequency ranges and 2496-2690MHz frequencies Section) when current trend schematic diagram.Wherein, will after electric current enters the second radiant body 78 from the second feed-in source S2 Flow to the one end (ginseng path J4) of second radiant body 78 away from the second feed-in source S2, so inspire the 4th mode with Produce the radiation signal of the 4th frequency range.Further, since the antenna structure 700 is provided with the 3rd switching circuit 79 of ground connection, because This switches the frequency of the high frequency mode using the 3rd switching circuit 79.

Figure 72 is S parameter (scattering parameter) curve map when antenna structure 700 works in low frequency modal.Wherein, it is bent Line S721 is the S11 values when antenna structure 700 works in 704-746MHz (LTE Band17 frequency ranges).Curve S722 is institute State S11 values when antenna structure 700 works in 746-787MHz (LTE Band13 frequency ranges).Curve S723 is the antenna structure 700 work in S11 values during 824-894MHz (LTE Band5 frequency ranges).Curve S724 is that the antenna structure 700 works in S11 values during 880-960MHz (LTE Band8 frequency ranges).Obviously, curve S721-S724 corresponds to four different frequency ranges respectively, and Wherein four of the changeable multiple low frequency modals of the switching circuit 76 of the first switching circuit 75 and second are corresponded to respectively.

Figure 73 is the radiation efficiency figure when antenna structure 700 works in low frequency modal.Wherein, curve S731 is described Antenna structure 700 works in radiation efficiency during 704-746MHz (LTE Band17 frequency ranges).Curve S732 is the day knot Structure 700 works in radiation efficiency during 746-787MHz (LTE Band13 frequency ranges).Curve S733 is the work of antenna structure 700 Make in radiation efficiency during 824-894MHz (LTE Band5 frequency ranges).Curve S734 is that the antenna structure 700 works in 880- Radiation efficiency during 960MHz (LTE Band8 frequency ranges).Obviously, curve S731-S734 corresponds to four different frequency ranges respectively, and divides Wherein four of the changeable multiple low frequency modals of the switching circuit 76 of the first switching circuit 75 and second are not corresponded to.

Figure 74 is that the antenna structure 700 works in Mid Frequency (i.e. 1710-1990MHz frequency ranges and 2110-2170MHz frequencies Section) when S parameter (scattering parameter) curve map.Figure 75 is that the antenna structure 700 works in Mid Frequency (i.e. 1710-1990MHz Frequency range and 2110-2170MHz frequency ranges) when radiation efficiency figure.

Figure 76 is that the antenna structure 700 works in high band (i.e. 2300-2400MHz frequency ranges and 2496-2690MHz frequencies Section) when S parameter (scattering parameter) curve map.Figure 77 is that the antenna structure 700 works in high band (i.e. 2300-2400MHz Frequency range and 2496-2690MHz frequency ranges) when radiation efficiency figure.Obviously, when the 3rd switching circuit in the antenna structure 700 When switch unit in 79 switches to different switching devices (such as four different switching devices), due to each switching member Part has different impedances, therefore by the switching of switch unit, can effectively adjust the antenna structure 700 in the frequency of high frequency Rate, and then obtain preferably operating frequency range.

Obviously, it was found from Figure 72 to Figure 77, the antenna structure 700 is operable with corresponding low frequency band, such as LTE Band17/13/5/8 frequency ranges.In addition, the antenna structure 700 may also be operated in Mid Frequency (1710-1990MHz, 2110- 2170MHz frequency ranges) and high band (i.e. 2300-2400MHz, 2496-2690MHz frequency range), that is, cover to basic, normal, high frequency, frequency Rate scope is wider, and when the antenna structure 700 works in above-mentioned frequency range, its working frequency can meet that Antenna Operation designs It is required that and there is preferable radiation efficiency.

That is, in the present embodiment, the antenna structure 700 is caused by setting first radiant body 73 The first irradiation unit 731 in first radiant body 73 forms coupled structure with the long-armed F1 of the metal, and described second radiates Portion 733 directly electrically connects with the metal galianconism F2.I.e. described first radiant body 73 and the long-armed F1 of the metal and metal galianconism F2 forms half manifold type feed-in structure so that the long-armed F1 and metal galianconism F2 of metal inspires corresponding first mode respectively And second mode.The setting of the half manifold type feed-in structure may be such that the antenna structure 700 has more flexible scalability, and The nonmetallic scope needed for the antenna structure can effectively be reduced.In addition, the antenna structure 700 passes through the described first switching electricity The setting of the switching circuit 76 of road 75 and second, it can effectively adjust and switch the first mode (i.e. low frequency modal), and due to humorous Shake the setting of circuit 77 so that the long-armed F1 additional resonants of metal go out an intermediate frequency mode (i.e. the 3rd mode).Furthermore the day Cable architecture 700 may be such that the antenna structure 700 excites by the setting of the switching circuit 79 of the second radiant body 78 and the 3rd Go out corresponding high frequency mode, and can effectively adjust the antenna structure 700 in the frequency of high frequency, and then obtain preferably operation frequency It is wide.

Also referring to Figure 78, the antenna structure 700a provided for the 7th preferred embodiment of the invention.The antenna structure 700a includes housing 71, the first feed-in source S1, the first radiant body 83, the first switching circuit 75, the second switching circuit 76, resonance electricity Road 77, the second radiant body 78, the second feed-in source S2 and the 3rd switching circuit 79.The housing 71 includes front frame 711, backboard 712 and frame 713.The frame 713 comprises at least terminal part 715, the first sidepiece 716 and the second sidepiece 717.The frame Fluting 719 is further opened with 713, breakpoint 720 is further opened with the front frame 711.The breakpoint 720 draws the front frame 711 It is divided into two parts, this two parts includes the long-armed F1 of metal and metal galianconism F2.

First radiant body 83 includes the first irradiation unit 731 and the second irradiation unit 831.First irradiation unit 731 wraps Include the first radiant section 734, the second radiant section 735 and the 3rd radiant section 736.3rd radiant section 736 and the metal are long-armed The coupling of F1 intervals is set, to cause first irradiation unit 731 to be formed coupled structure with the long-armed F1 of the metal.

It is appreciated that the antenna structure 700a and antenna structure 700 difference are, institute in the antenna structure 700a State the concrete structure of the second irradiation unit 831 and the concrete structure of the second irradiation unit 733 in antenna structure 700 and differ, and Second irradiation unit 831 and the metal galianconism F2 annexation and the second irradiation unit 733 described in antenna structure 700 with The annexation of the metal galianconism F2 differs.

Specifically, in the present embodiment, second irradiation unit 831 and first irradiation unit 731 relatively described first Feed-in source S1 is symmetrical arranged.Second irradiation unit 831 includes the first coupled section 832, the second coupled section 833 and the 3rd coupling Section 834.The 834 coplanar setting of first coupled section 832, the second coupled section 833 and the 3rd coupled section.First coupled section 832 generally rectangular shaped strips, its one end are electrically connected to the match circuit 81 of the feed-in source S1 of the first radiant section 734 and first, And along the parallel terminal part 715 and close to second sidepiece 717 direction extend, with first radiant section 734 In on same straight line.Second coupled section, the 833 generally rectangular shaped strip, its one end vertical connection to first coupled section 832 one end away from the first feed-in source S1, and along parallel second radiant section 735 and close to the terminal part 715 Direction extends, and then collectively forms a Π type knots with first radiant section 734, the second radiant section 735, the first coupled section 832 Structure.3rd coupled section, the 834 generally rectangular shaped strip, it is with the metal galianconism F2 intervals and be arranged in parallel.Described 3rd Coupled section 834 is electrically connected to the one end of second coupled section 833 away from the first coupled section 832, and respectively along close to described the The direction of one sidepiece 716 and the second sidepiece 717 extends, and then forms generally T-shaped structure with second coupled section 833.

It is appreciated that when the antenna structure 700a works in low frequency modal, its current trend and the antenna structure 700 current trend when working in low frequency modal is consistent, specifically see Figure 69, will not be repeated here.

When Figure 79 is that the antenna structure 700a works in intermediate frequency mode (1710-2170MHz, 2110-2170MHz frequency range) Current trend schematic diagram.Obviously, after electric current enters from the first feed-in source S1, electric current will flow through second spoke successively First coupled section 832, the second coupled section 833 and the 3rd coupled section 834 in portion 831 are penetrated, and through the coupling of the 3rd coupled section 834 The metal galianconism F2 is bonded to, then second sidepiece 717 is flowed through from the metal galianconism F2, finally flows to the back of the body at the back side Plate 712 (ginseng path J5), and then the second mode is inspired to produce the radiation signal of the second frequency range.Work as electric current simultaneously from institute After stating the first feed-in source S1 entrance, electric current will be coupled to the metal galianconism F2 through the 3rd coupled section 834, then through the breakpoint 720 are coupled to the long-armed F1 of the metal, and flow through to the resonance circuit 77 in first switching circuit 75, eventually flow to the back side Backboard 712 (ginseng path J6).Thus by the coupling of the breakpoint 720, and the resonance circuit 77 of arranging in pairs or groups, and then swash The 3rd mode is sent to produce the radiation signal of the 3rd frequency range.

It is appreciated that when the antenna structure 700a works in high frequency mode, its current trend and the antenna structure 700 current trend when working in high frequency mode is consistent, specifically see Figure 71, will not be repeated here.

Figure 80 is S parameter (scattering parameter) curve map when the antenna structure 700a works in low frequency modal.Wherein, it is bent Line S801 is the S11 values when antenna structure 700a works in 704-746MHz (LTE Band17 frequency ranges).Curve S802 is The antenna structure 700a works in S11 values during 746-787MHz (LTE Band13 frequency ranges).Curve S803 is the antenna Structure 700a works in S11 values during 824-894MHz (LTE Band5 frequency ranges).Curve S804 is the antenna structure 700a works Make in S11 values during 880-960MHz (LTE Band8 frequency ranges).Obviously, curve S801-S804 corresponds to four different frequencies respectively Section, and wherein the four of the changeable multiple low frequency modals of the switching circuit 76 of the first switching circuit 75 and second are corresponded to respectively It is individual.

Figure 81 is the radiation efficiency figure when antenna structure 700a works in low frequency modal.Wherein, curve S811 is institute State radiation efficiency when antenna structure 700a works in 704-746MHz (LTE Band17 frequency ranges).Curve S812 is the antenna Structure 700a works in radiation efficiency during 746-787MHz (LTE Band13 frequency ranges).Curve S8123 is the antenna structure 700a works in radiation efficiency during 824-894MHz (LTE Band5 frequency ranges).Curve S814 is the antenna structure 700a works Make in radiation efficiency during 880-960MHz (LTE Band8 frequency ranges).Obviously, curve S811-S814 corresponds to four differences respectively Frequency range, and wherein the four of the changeable multiple low frequency modals of the switching circuit 76 of the first switching circuit 75 and second are corresponded to respectively It is individual.

Figure 82 is that the antenna structure 700a works in Mid Frequency (i.e. 1710-1990MHz frequency ranges and 2110-2170MHz frequencies Section) when S parameter (scattering parameter) curve map.Figure 83 is that the antenna structure 700a works in Mid Frequency (i.e. 1710- 1990MHz frequency ranges and 2110-2170MHz frequency ranges) when radiation efficiency figure.

When the antenna structure 700a works in high band (i.e. 2300-2400MHz frequency ranges and 2496-2690MHz frequency ranges) S parameter (scattering parameter) it is identical with radiation efficiency and the antenna structure 700, Figure 76 above and Figure 77 had been described above.

It is appreciated that in the present embodiment, the antenna structure 700a is caused by setting first radiant body 83 The first irradiation unit 731 in first radiant body 83 forms coupled structure, second irradiation unit with the long-armed F1 of the metal 831 form coupled structure with the metal galianconism F2.I.e. described first radiant body 83 and the long-armed F1 of the metal and metal galianconism F2 forms unity couping formula feed-in structure so that the long-armed F1 and metal galianconism F2 of metal inspires corresponding first mode respectively And second mode.The setting of the unity couping formula feed-in structure may be such that the antenna structure 700 has more flexible scalability, and The nonmetallic scope needed for the antenna structure 700a can effectively be reduced.In addition, the antenna structure 700a passes through described first The setting of the switching circuit 76 of switching circuit 75 and second, it can effectively adjust and switch the first mode (i.e. low frequency modal), and Due to the setting of resonance circuit 77 so that the long-armed F1 additional resonants of metal go out an intermediate frequency mode (i.e. the 3rd mode).Furthermore The antenna structure 700a may be such that the antenna structure by the setting of the switching circuit 79 of the second radiant body 78 and the 3rd 700a inspires corresponding high frequency mode, and can effectively adjust the antenna structure 700a in the frequency of high frequency, so obtain compared with Good operation frequency range.

As described in previous embodiments, first radiant body 73/83 is entered by coupling setting with the long-armed F1 of the metal And the long-armed F1 of metal is caused to excite first mode to produce the radiation signal of low frequency band.First radiant body simultaneously 73/83 is set by being coupled with the metal galianconism F2 or is directly electrically connected with, and then causes the metal galianconism F2 to excite the Two mode are to produce the radiation signal of intermediate-frequency band.I.e. described first radiant body 73/83 can F1 and metal long-armed with the metal Galianconism F2 forms half coupling feed-in structure or unity couping feed-in structure, and then the long-armed F1 and metal galianconism F2 of metal is total to It is same to excite first mode and second mode.Meanwhile the long-armed F1 of the metal and metal galianconism F2 can pass through the breakpoint 720 Coupling is set, and the resonance circuit 77 of arranging in pairs or groups, and then causes the long-armed F1 extra excitations of metal to go out corresponding 3rd mode To produce the radiation signal of intermediate-frequency band, the second radiant body 78 can inspire the 4th mode to produce the radiation of high-frequency band letter Number.Therefore radio communication device 800 can be used Long Term Evolution upgrade version (LTE-Advanced) carrier aggregation (CA, Carrier Aggregation) technology receives or sends wireless signal to increase transmitting bandwidth in multiple different frequency ranges simultaneously.More Specifically, radio communication device 800 can be used the carrier aggregation technology and using the long-armed F1 of metal, metal galianconism F2, the Wherein at least both receive or sent wireless signal in multiple different frequency ranges simultaneously for one radiant body 73/83 and the second radiant body 78.

The antenna structure 100 of first preferred embodiment of the invention, the second preferred embodiment of the invention antenna structure 200, The antenna structure 500 of 3rd preferred embodiment of the invention, the antenna structure 500a of the 4th preferred embodiment of the invention, the present invention the The antenna structure 500b of five preferred embodiments, the antenna structure 700 of the 6th preferred embodiment of the invention and the present invention the 7th compared with The antenna structure 700a of good embodiment can be applicable to same radio communication device.Such as antenna structure 100 or 200 is arranged on The upper end of the radio communication device is arranged on the nothing as slave antenna, and by antenna structure 500,500a, 500b, 700 or 700a The lower end of line communicator is as primary antenna.When the radio communication device sends wireless signal, the radio communication device uses The primary antenna sends wireless signal.When the radio communication device receives wireless signal, described in the radio communication device use Primary antenna and the slave antenna receive wireless signal together.

Embodiment of above is merely illustrative of the technical solution of the present invention and unrestricted, although the preferable embodiment party with reference to more than The present invention is described in detail formula, it will be understood by those within the art that, can be to technical scheme Modify or equivalent substitution should not all depart from the spirit and scope of technical solution of the present invention.Those skilled in the art can also be at this The design that other changes etc. are used in the present invention is done in spirit, without departing from the technique effect of the present invention.These The change done according to present invention spirit, it should all be included within scope of the present invention.

Claims (17)

1. a kind of antenna structure, including housing, the first feed-in source and the first radiant body, the housing include front frame, backboard with And frame, the frame are located between the front frame and the backboard, fluting is offered on the frame, is opened in the front frame Provided with breakpoint, the breakpoint connects with the fluting and extends to the cut-off front frame, and the fluting and the breakpoint are described in Housing marks off that metal is long-armed and metal galianconism, first radiant body are arranged in the housing, including the first irradiation unit and Second irradiation unit, one end of first irradiation unit are electrically connected to the first feed-in source, the other end and the metal it is long-armed between Set every coupling;One end of second irradiation unit is electrically connected to the first feed-in source, and the other end is electrically connected to the metal Galianconism.
2. antenna structure as claimed in claim 1, it is characterised in that:Insulation material is filled with the fluting and the breakpoint Material.
3. antenna structure as claimed in claim 1, it is characterised in that:The frame comprise at least terminal part, the first sidepiece with And second sidepiece, first sidepiece are connected the both ends of the terminal part, first irradiation unit with second sidepiece respectively Including the first radiant section, the second radiant section and the 3rd radiant section, described first radiant section one end is electrically connected to first feedback Entering source, the other end extends along the parallel terminal part and close to the direction of first sidepiece, until the breakpoint is crossed, it is described Second radiant section one end vertical connection is to the one end of first radiant section away from the first feed-in source, and the other end is along parallel institute State the second sidepiece and close to the long-armed direction extension of the metal, and then L-shaped structure is formed with first radiant section, described the The long-armed interval of three radiant sections and the metal and it be arranged in parallel, the 3rd radiant section vertical connection is remote to second radiant section From the end of first radiant section, and extend respectively along close to the direction of first sidepiece and the second sidepiece, so with institute State the second radiant section and form T-shaped structure.
4. antenna structure as claimed in claim 3, it is characterised in that:The front frame of the breakpoint side is until it is extended to It is long-armed that the part corresponding with the wherein end point of the fluting is collectively forming the metal, when electric current is from the first feed-in source After, first radiant section, the second radiant section and the 3rd radiant section will be flowed through successively, and through the 3rd radiant section coupling It is long-armed to be bonded to the metal, then first sidepiece is flowed through from the metal is long-armed, finally flows to the backboard, to inspire One mode is to produce the radiation signal of the first frequency range.
5. antenna structure as claimed in claim 4, it is characterised in that:The antenna structure also includes the first switching circuit and the Two switching circuits, first switching circuit include the first switch unit and multiple first switching devices, and first switching is single It is long-armed that member is electrically connected to the metal, parallel with one another between the multiple first switching device, and its one end be electrically connected to it is described First switch unit, the other end are electrically connected to the backboard, and second switching circuit includes the second switch unit and multiple the Two switching devices, the first feed-in source are electrically connected to first radiant section, second switch unit by match circuit It is electrically connected to the match circuit, it is parallel with one another between second switching device, and its one end is electrically connected to described second and cut Unit is changed, the other end is electrically connected to the backboard, by controlling cutting for first switch unit and/or the second switch unit Change so that first switch unit and the second switch unit switch to the first different switching devices and/or the second switching member Part, and then adjust first frequency range.
6. antenna structure as claimed in claim 5, it is characterised in that:Second irradiation unit is an electric capacity, second spoke The one end for penetrating portion is electrically connected to the first feed-in source, and the other end is electrically connected to the metal galianconism.
7. antenna structure as claimed in claim 5, it is characterised in that:The front frame of the breakpoint opposite side until its extend to The part that another end points of the fluting is corresponding is collectively forming the metal galianconism, and the long-armed length of the metal is more than described The length of metal galianconism, after electric current enters from the first feed-in source, electric current will flow directly into institute through second irradiation unit Metal galianconism is stated, second sidepiece is passed through, finally flows into the backboard, and then inspires second mode to produce the second frequency The radiation signal of section, the frequency of second frequency range are higher than the frequency of first frequency range, while when electric current is presented from described first After entering source entrance, electric current flows into the metal galianconism through second irradiation unit, then long-armed coupled to the metal through the breakpoint, And flow through to first switching circuit, the backboard is eventually flowed to, and then inspire the 3rd mode to produce the 3rd frequency range Radiation signal, the frequency of the 3rd frequency range are higher than the frequency of second frequency range.
8. antenna structure as claimed in claim 7, it is characterised in that:First switching circuit also includes resonance circuit, institute The quantity for stating resonance circuit is one, and one end of the resonance circuit is electrically connected to that the metal is long-armed, and the other end is electrically connected to The backboard.
9. antenna structure as claimed in claim 7, it is characterised in that:First switching circuit also includes resonance circuit, institute It is consistent with the quantity of first switching device to state the quantity of resonance circuit, each resonance circuit is respectively electrically connected to described Between first switch unit and the backboard, and in parallel with corresponding first switching device, the resonance circuit is working as When first frequency range is adjusted, the 3rd frequency range is set to remain unchanged.
10. antenna structure as claimed in claim 7, it is characterised in that:First switching circuit also includes resonance circuit, institute It is consistent with the quantity of first switching device to state the quantity of resonance circuit, each resonance circuit is respectively electrically connected to described Between first switch unit and the backboard, and in parallel with corresponding first switching device, the resonance circuit is working as It is corresponding to adjust the 3rd frequency range when first frequency range is adjusted.
11. antenna structure as claimed in claim 1, it is characterised in that:The antenna structure also includes the second radiant body and the Two feed-in sources, for second radiant body adjacent to the long-armed setting of the metal, second radiant body is vertical bar shape lamellar body, described One end of two radiant bodies is electrically connected to the front frame, and the other end extends towards second sidepiece, and the second feed-in source is set In in the front frame, and first radiant body is electrically connected to, after electric current enters from the second feed-in source, will flowed through described Second radiant body, and then the 4th mode is inspired to produce the radiation signal of the 4th frequency range.
12. antenna structure as claimed in claim 11, it is characterised in that:The antenna structure also includes the 3rd switching circuit, One end of 3rd switching circuit is electrically connected to second radiant body, and the other end of the 3rd switching circuit is electrically connected to The backboard, to adjust the 4th frequency range.
13. antenna structure as claimed in claim 1, it is characterised in that:Radio communication device is using carrier aggregation technology and makes With first radiant body, the metal is long-armed and metal galianconism wherein at least both receive simultaneously in multiple different frequency ranges or Send wireless signal.
14. antenna structure as claimed in claim 1, it is characterised in that:The single sheet metal that the backboard is formed in one, institute State backboard to be directly connected to frame, there is no space between the backboard and frame, it is any for dividing that setting is had no on the backboard Cut the fluting, broken string or breakpoint of the insulation of the backboard.
15. a kind of radio communication device, including the antenna structure as any one of claim 1-14.
16. radio communication device as claimed in claim 15, it is characterised in that:It is single that the radio communication device also includes display Member, the front frame, backboard and frame form the shell of the radio communication device, and the front frame is provided with opening and is used to house The display unit, the display unit have display plane, and the display plane is exposed to the opening, and the display plane and institute Backboard is stated to be arranged in parallel.
17. radio communication device as claimed in claim 15, it is characterised in that:The radio communication device also includes USB moulds Block, port is further opened with the frame, the port is corresponding with the USB module, to cause the USB module from institute Port section is stated to expose.
CN201710488559.7A 2016-07-19 2017-06-23 Antenna structure and the radio communication device with the antenna structure CN107634334A (en)

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