CN107645040A

CN107645040A - Antenna structure and the radio communication device with the antenna structure

Info

Publication number: CN107645040A
Application number: CN201710482507.9A
Authority: CN
Inventors: 曾昱楷; 黄国仑; 邹明佑
Original assignee: Shenzhen Futaihong Precision Industry Co Ltd; Chiun Mai Communication Systems Inc
Current assignee: Shenzhen Futaihong Precision Industry Co Ltd; Chiun Mai Communication Systems Inc
Priority date: 2016-07-21
Filing date: 2017-06-22
Publication date: 2018-01-30
Anticipated expiration: 2037-06-22
Also published as: TWI640125B; TW201804660A; TWI650900B; CN107645040B; TW201804661A; CN107645048A

Abstract

The present invention provides a kind of antenna structure, including housing, the first feeding portion, the first grounding parts and the second grounding parts, fluting, the first breakpoint and gap are offered on the housing, the housing is divided into spaced Part I and Part II by first breakpoint, the gap and the fluting jointly；The Part I is divided into the first irradiation unit and the second irradiation unit by first feeding portion, housing at first feeding portion to first breakpoint forms first irradiation unit, housing at first feeding portion to the gap forms second irradiation unit, the length of second irradiation unit is less than the length of the Part II, the length of the Part II is less than the length of first irradiation unit, the Part I is to excite first mode, and the Part II is exciting second mode.The antenna structure can effectively realize that wideband designs.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, the electronic installation such as mobile phone, personal digital assistant is constantly more towards function Sample, lightening and data transmission faster, the trend development such as more efficiently.But its relative space that can accommodate antenna With regard to less and less, and with the continuous development of Long Term Evolution (Long Term Evolution, LTE) technology, the frequency range of antenna It is continuously increased.Therefore, how to be designed in limited space with the wide antenna of wider frequency, be that Antenna Design faces one Important topic.

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, fluting, the first breakpoint and gap is offered on the housing, the fluting includes first end and second End, first breakpoint is opened in the position that the housing corresponds to the first end, and is penetrated with the fluting, and the gap is opened The part between the first end and the second end is corresponded to located at the housing, and is penetrated with the fluting, first breakpoint, institute State gap and the fluting marks off spaced Part I and Part II from the housing jointly, described first is disconnected Housing between point and the gap forms the Part I, described in the housing composition between the gap and second end Part II；

First feeding portion, first feeding portion is electrically connected to the Part I, and the Part I is divided into First irradiation unit and the second irradiation unit, the housing at first feeding portion to first breakpoint form first radiation Portion, the housing at first feeding portion to the gap form second irradiation unit；

First grounding parts, first grounding parts are electrically connected to first irradiation unit；And

Second grounding parts, second grounding parts are electrically connected to second irradiation unit；

Wherein, the length of second irradiation unit is less than the length of the Part II, and the length of the Part II is small In the length of first irradiation unit, the Part I is to excite first mode, and the Part II is exciting second Mode.

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

Above-mentioned antenna structure and radio communication device with the antenna structure are by setting the housing, and described in utilizing Fluting on housing marks off antenna structure with breakpoint from the housing, so may be such that the antenna structure is not only restricted to headroom Area and the limitation of distance to the ground, effectively realize that wideband designs, and keep preferable high-frequency effect.

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 schematic diagram under another angle of radio communication device shown in Fig. 1.

Fig. 3 is the current trend figure of antenna structure shown in Fig. 1.

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

Fig. 5 is the circuit diagram of the second switching circuit in antenna structure shown in Fig. 1.

Fig. 6 is described in when the first switch unit switches to the first different switching devices in the first switching circuit shown in Fig. 4 S parameter (scattering parameter) curve map of antenna structure.

Fig. 7 is described in when the second switch unit switches to the second different switching devices in the second switching circuit shown in Fig. 5 S parameter (scattering parameter) curve map of antenna structure.

Fig. 8 is the global radiation efficiency curve diagram of antenna structure shown in Fig. 1.

Fig. 9 is the structural representation of the antenna structure of the second preferred embodiment of the invention.

Figure 10 is the current trend figure of antenna structure shown in Fig. 9.

Figure 11 is S parameter (scattering parameter) curve map when antenna structure shown in Fig. 9 works in Low Medium Frequency.

Figure 12 is that S parameter when antenna structure shown in Fig. 9 works in WIFI 2.4GHz frequency ranges and WIFI 5GHz frequency ranges (dissipates Penetrate parameter) curve map.

Figure 13 is S parameter (scattering parameter) curve map when antenna structure shown in Fig. 9 works in GPS/GLONASS frequency ranges.

Figure 14 is the structural representation of the antenna structure of the 3rd preferred embodiment of the invention.

Figure 15 is the current trend figure of antenna structure shown in Figure 14.

Figure 16 is the circuit diagram of the second feeding portion in antenna structure shown in Figure 14.

Figure 17 is the circuit diagram of another second feeding portion in antenna structure shown in Figure 14.

Figure 18 is that antenna structure shown in Figure 14 works in GPS/GLONASS frequency ranges, the high-frequency band of first mode, bluetooth frequency S parameter (scattering parameter) curve map when section and Wi-Fi frequency ranges.

Figure 19 is that antenna structure shown in Figure 14 works in GPS/GLONASS frequency ranges, the high-frequency band of first mode, bluetooth frequency Global radiation efficiency curve diagram when section and Wi-Fi frequency ranges.

Figure 20 is that the antenna structure of the 4th preferred embodiment of the invention is applied to the schematic diagram of radio communication device.

Figure 21 is the schematic diagram under another angle of radio communication device shown in Figure 20.

Figure 22 is the assembling schematic diagram of radio communication device shown in Figure 20.

Figure 23 is the current diagram of antenna structure shown in Figure 20.

Figure 24 is the circuit diagram of the first switching circuit in antenna structure shown in Figure 20.

Figure 25 is the circuit diagram of the second switching circuit in antenna structure shown in Figure 20.

Figure 26 is S parameter (scattering parameter) curve map when antenna structure shown in Figure 20 works in basic, normal, high frequency.

Figure 27 is global radiation efficiency chart when antenna structure shown in Figure 20 works in basic, normal, high frequency.

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 1-3

Referring to Fig. 1, better embodiment of the present invention provides a kind of antenna structure 100, it can be applied to mobile phone, individual In the radio communication devices such as personal digital assistant 200, to launch, receive radio wave to transmit, exchange wireless signal.

The antenna structure 100 includes housing 11, the first feeding portion 12, the first grounding parts G1, the second grounding parts G2, radiation Body 13 and two second feeding portions S1, S2.In the present embodiment, the housing 11 comprise at least backboard 110, front frame 111 and Frame 112.The backboard 110 can be made up of metal or insulating materials.The front frame 111 and frame 112 are by metal material It is made.The front frame 111 and frame 112 can be integrally formed.The backboard 110 is oppositely arranged with the front frame 111.Institute State the shell that backboard 110, front frame 111 and frame 112 form the radio communication device 200.The frame 112 is located in described Between front frame 111 and the backboard 110, and the periphery around the front frame 111 and the backboard 110 is set respectively, with institute State front frame 111 and the backboard 110 surrounds an accommodation space 113 jointly.The accommodation space 113 is to the accommodating channel radio The electronic building bricks such as the substrate of T unit 200, processing unit or circuit module are in the inner.

In the present embodiment, the frame 112 comprises at least terminal part 114, the first sidepiece 115 and the second sidepiece 116. The terminal part 114 can be the top or bottom of the electronic installation 100.The terminal part 114 connects the front frame 111. First sidepiece 115 is oppositely arranged with second sidepiece 116, and both are respectively arranged at the both ends of the terminal part 114, excellent Choosing is vertically arranged.First sidepiece 115 is also connected the front frame 111 with second sidepiece 116.

Fluting 117 is offered on the frame 112.In the present embodiment, the fluting 117 is laid in the terminal part On 114, and extend respectively to the sidepiece 116 of the first sidepiece 115 and second.The first breakpoint is offered in the front frame 111 118th, the second breakpoint 119 and gap 120.First breakpoint 118, the second breakpoint 119 and gap 120 with the fluting 117 connections, and extend to the cut-off front frame 111.In the present embodiment, first breakpoint 118 is opened in the front frame 111 On, and connected with the first end T1 that the fluting 117 is laid in first sidepiece 115.Second breakpoint 119 is opened in institute State in front frame 111, and connected with the second end T2 that the fluting 117 is laid in second sidepiece 116.The gap 120 is set It is placed in the front frame 111 between the first end T1 and the second end T2, and is connected with the fluting 117.In this way, described open Groove 117, the first breakpoint 118, the second breakpoint 119 and the gap 120 are separated out spaced set from the housing 11 jointly The Part I A1 and Part II A2 put.Wherein, by the 117, first breakpoint 118 of the fluting and gap in the housing 11 120 front frames 111 surrounded jointly form the Part I A1.By the 117, second breakpoint of the fluting in the housing 11 119 and the front frame 111 that surrounds jointly of gap 120 form the Part II A2.

In the present embodiment, the width substantially 3.5mm of the fluting 117.The breakpoint of first breakpoint 118 and second 119 width substantially 3.5mm.The width substantially 1.5mm in the gap 120.

It is appreciated that in the present embodiment, the fluting 117 is opened on the frame 112 and extends to the front frame 111, to cause the Part I A1 and Part II A2 to be made up of completely the part front frame 111.Certainly, implement at other In example, the fluting 117 opens up position and can be also adjusted according to real needs.For example, the fluting 118 be opened in it is described The one end of frame 112 away from the front frame 111, to cause the Part I A1 and Part II A2 by the part front frame 111 and the part frame 112 form.

It is appreciated that in other embodiments, the fluting 117 can also be only arranged at the terminal part 114, and not extend The terminal part is arranged to any one in the sidepiece 116 of the first sidepiece 115 and second, or the fluting 117 114, and only along one of extending in the sidepiece 116 of the first sidepiece 115 and second.In this way, the first end T1 and The position of second end T2 position, the first breakpoint 118 and the second breakpoint 119 can also be carried out according to the position of the fluting 117 Adjustment.For example, the first end T1 and the second end T2 can be respectively positioned on the position of the corresponding terminal part 114 of the front frame 111.Example Such as, one in the first end T1 and the second end T2 can be located at the position of the corresponding terminal part 114 of the front frame 111, and Another in the first end T1 and the second end T2 can be opened in corresponding first sidepiece 115 or the second of the front frame 111 The position of sidepiece 116.Obviously, shape, position and the first end T1 of the fluting 117 and the second end T2 are in the frame Position on 112 can be adjusted according to real needs, it is only necessary to ensure the fluting 117, first breakpoint 118, second Breakpoint 119 and the gap 120 can mark off spaced Part I A1 and Part II from the housing 11 jointly A2.

It is appreciated that in the present embodiment, the Part II A2 ground connection of the antenna structure 100.Specifically, described second Part A2 can be electrically connected to described wireless close to one end of second breakpoint 119 by attachment structures such as shell fragment, probe, wires The ground plane of communicator 200, and then provide ground connection for the Part II A2.

The radio communication device 200 may include display unit.The display unit may be disposed at opening for the front frame 111 Mouthful to close the accommodation space 113.It is can be set in the display unit towards the side of backboard 110 for shielding electromagnetism The radome (shielding mask) of interference or the center of the support display unit.The radome or center are with metal material Material makes.The ground plane can be the backboard 110 of the radio communication device 200.The ground plane can also be the screen Cover or center are covered, or the radome or center are electrically connected to form with the backboard 110.The ground plane is the day knot The ground of structure 100 and the radio communication device 200.

One end of first feeding portion 12 is electrically connected to the Part I A1 close to the one end in the gap 120, with For the Part I A1 feed-in electric currents.In the present embodiment, first feeding portion 12 marks off the Part I A1 Two parts, i.e. the first irradiation unit E1 and the second irradiation unit E2.Wherein, first feeding portion 12 to the front frame 111 is provided with The part of first breakpoint 118 forms the first irradiation unit E1.First feeding portion 12 to the front frame 111 is provided with The part in the gap 120 forms the second irradiation unit E2.

It is appreciated that in the present embodiment, the position that first feeding portion 12 opens up not corresponds to described first Divide A1 centre, therefore the length of the first irradiation unit E1 is more than the length of the second irradiation unit E2.In addition, described second Part A2 length is also more than the length of the second irradiation unit E2, but the length less than the first irradiation unit E1.

The first grounding parts G1 is electrically connected to the first irradiation unit E1, and electrically connects the ground plane, to for institute State the first irradiation unit E1 and ground connection is provided.The second grounding parts G2 is electrically connected to the second irradiation unit E2, and described in electrical connection Ground plane, to provide ground connection for the second irradiation unit E2.In the present embodiment, the first grounding parts G1 is arranged at described First irradiation unit E1 is close to one end of first breakpoint 118.Specifically, the first grounding parts G1 is arranged at the housing At 11 right hand corner.The second grounding parts G2 is between the gap 120 and first feeding portion 12.

It is appreciated that in other embodiments, fluting 117, first breakpoint 118, the second breakpoint 119 and the institute State in gap 120 filled with insulating materials (such as plastic cement, rubber, glass, timber, ceramics etc., but be not limited), and then Separate the first irradiation unit E1, the second irradiation unit E2, the Part II A2 and the housing 11 remainder.

In the present embodiment, one of them second feeding portion, such as the second feeding portion S1 are electrically connected to the Part II A2, think the Part II A2 feed-in electric currents.Another second feeding portion, for example, the second feeding portion S2 be electrically connected to it is described Radiant body 13, think the feed-in electric current of radiant body 13.

Also referring to Fig. 2, in the present embodiment, the radiant body 13 is arranged in the accommodation space 113, and close The Part II A2 is set.The radiant body 13 can be flexible PCB (Flexible Printed Circuit, FPC) Or formed using laser direct forming (Laser Direct Structuring, LDS) technique.The radiant body 13 includes connection Portion 131, the first branch 132 and the second branch 133.The connecting portion 131, the first branch 132 and the second branch 133 is coplanar sets Put.The connecting portion 131 is substantially L-shaped, including the first linkage section 134 and the second linkage section 135.First linkage section 134 The second feeding portion S2 is electrically connected to, and is be arranged in parallel with the terminal part 114, for feed-in current signal to the radiation Body 13.One end vertical connection of second linkage section 135 is to first linkage section 134 close to second sidepiece 116 End, the other end extend along parallel second sidepiece 116 and close to the direction of the terminal part 114, and then with described first Linkage section 134 forms the L-type structure.

First branch 132 includes the first extension 136, the second extension 137 and the 3rd extension 138.It is described First extension, 136 generally rectangular shaped strip, its one end are connected to second linkage section 135 away from the first linkage section 134 One end, the other end continue to extend along the bearing of trend of second linkage section 135, i.e., along vertical and remote first linkage section 134 direction extension, to be located at same straight line with second linkage section 135.Second extension, the 137 generally rectangular shaped bar Shape, its one end vertical connection to the one end of first extension 136 away from the second linkage section 135, the other end is along parallel described First linkage section 134 and the direction extension away from first extension 136, i.e., the described connection of second extension 137 and first Section 134 is respectively arranged at the same side of the extension 136 of the second linkage section 135 and first, and is respectively arranged at described second The both ends of the extension 136 of linkage section 135 and first.3rd extension, the 138 generally rectangular shaped strip, its one end are electrically connected to End of second extension 137 away from the first extension 136, the other end is along parallel second linkage section 135 and close The direction extension of first linkage section 134.

Second branch 133 is substantially L-shaped, including the first resonance paragraph 139 and the second resonance paragraph 140.Described first is common One end vertical connection of section of shaking 139 to the extension 136 of the second linkage section 135 and first tie point, and along parallel described The direction of first linkage section 134 and close second sidepiece 116 extends.Second resonance paragraph, the 140 generally rectangular shaped strip, Its one end vertical connection to end of first resonance paragraph 139 away from the extension 136 of the second linkage section 135 and first, The other end extends along vertical first resonance paragraph 139 and close to the direction of second extension 137, and then with described first Resonance paragraph 139 collectively forms the L-type structure.

It is appreciated that in the present embodiment, the Part I A1 is diversity antenna.The Part II A2 is GPS days Line.The radiant body 13 is WIFI antennas.The Part I A1, the first feeding portion 12, the first grounding parts G1, described Two grounding parts G2 collectively form double inverted F shaped antenna frameworks, and then receive and dispatch the signal of first mode.The Part II A2 forms straight The inverted F shaped antenna framework of feed-in is connect, and then receives and dispatches the signal of second mode.In the present embodiment, the radiant body 13 is an inverted f Type antenna, and then receive and dispatch the signal of the 3rd mode.Certainly, in other embodiments, the radiant body 13 can also be loop type or Other kinds of antenna.

In another embodiment, a part for the corresponding radiant body 13 of the backboard 110 can be made of insulating materials, and The remainder of the backboard 110 is made using metal material, to improve the return loss of radiant body 13 and radiation efficiency.

It is appreciated that in the present embodiment, the radio communication device 200 also includes an at least electronic building brick.In this implementation In example, the radio communication device 200 includes at least four electronic building bricks, i.e. the first electronic component 201, the second electronic component 202nd, the 3rd electronic component 203 and the 4th electronic component 204.In the present embodiment, first electronic component 201 and second Electronic component 202 is main camera module, and both are arranged at intervals between the grounding parts G1 of the first feeding portion 12 and first. 3rd electronic component 203 is a front camera module, and it is arranged at the radiant body 13 and the second grounding parts G2 Between, and the neighbouring gap 120 is set.4th electronic component 204 is an audio transceiver (receiver), and it is set Between the grounding parts G2 of the first feeding portion 12 and second.

Also referring to Fig. 3, after electric current enters from first feeding portion 12, electric current will flow into first irradiation unit E1, and pass through the first grounding parts G1 ground connection (ginseng path P 1).In addition, after electric current enters from first feeding portion 12, Electric current will also flow into the second irradiation unit E2, and pass through the second grounding parts G2 ground connection (ginseng path P 2).So so that institute State the first irradiation unit E1 and the second irradiation unit E2 (i.e. Part I A1) excites first mode to produce the spoke of the first frequency range jointly Penetrate signal.In the present embodiment, the first mode is LTE mode, including basic, normal, high frequency mode, the basic, normal, high frequency mode Frequency range be respectively 734-960MHz, 1805-2170MHz and 2300-2690MHz.Specifically, first irradiation unit E1 produces the radiation signal of low frequency, and the second irradiation unit E2 produces the radiation signal of medium-high frequency.

After electric current is from the second feeding portion S1 feed-ins, electric current will flow into the Part II A2, and pass through described Two part A2 ground connection (ginseng path P 3), and then cause the Part II A2 to excite second mode to produce the radiation of the second frequency range Signal, such as GPS/GLONASS signals (1575-1602MHz).After electric current is from the second feeding portion S2 feed-ins, a part Electric current will pass through the connecting portion 131, and flow through first branch 132, and another part electric current then passes through the connecting portion 131, and flow through second branch 133 (ginseng path P 4).So so that the radiant body 13 is operable with the 3rd mode to produce The radiation signal of raw 3rd frequency range, such as WIFI 2.4GHz mode and WIFI 5GHz mode.

It is appreciated that referring to Fig. 2, in other embodiments, make it that it is preferable that the first irradiation unit E1 has Low frequency bandwidth, the antenna structure 100 may also include the first switching circuit 15.One end of first switching circuit 15 passes through The first grounding parts G1 is electrically connected to the first irradiation unit E1, and the other end is electrically connected to the ground plane, that is, is grounded.

Also referring to Fig. 4, first switching circuit 15 includes the first switch unit 151 and at least one first switching member Part 153.First switch unit 151 is electrically connected to the first grounding parts G1, to be electrically connected to by the first grounding parts G1 The first irradiation unit E1.First switching device 153 can be the combination of inductance, electric capacity or inductance and electric capacity.It is described It is parallel with one another between first switching device 153, and its one end is electrically connected to first switch unit 151, other end electrical connection To the ground plane, that is, it is grounded.In this way, the switching by controlling first switch unit 151, may be such that first radiation Portion E1 switches to the first different switching devices 153.Because each first switching device 153 has different impedances, therefore By the switching of first switch unit 151, the LTE low frequency bands of the first irradiation unit E1 are can adjust.

It is appreciated that referring to Fig. 2, in other embodiments, make it that it is preferable that the second irradiation unit E2 has Medium-high frequency frequency range, the antenna structure 100 may also include the second switching circuit 17.One end of second switching circuit 17 leads to Cross the second grounding parts G2 and be electrically connected to the second irradiation unit E2, the other end is electrically connected to the ground plane, that is, is grounded.

Please refer to fig. 5, second switching circuit 17 includes the second switch unit 171 and at least one second switching member Part 173.Second switch unit 171 is electrically connected to the second grounding parts G2, to be electrically connected by the second grounding parts G2 It is connected to the second irradiation unit E2.Second switching device 173 can be the combination of inductance, electric capacity or inductance and electric capacity. It is parallel with one another between second switching device 173, and its one end is electrically connected to second switch unit 171, other end electricity The ground plane is connected to, that is, is grounded.In this way, the switching by controlling second switch unit 171, may be such that described second Irradiation unit E2 switches to the second different switching devices 173.Because each second switching device 173 has different impedances, Therefore by the switching of second switch unit 171, the LTE medium-high frequency frequency ranges of the second irradiation unit E2 be can adjust.

As described above, the Part I A1 can excite first mode to produce the radiation of the basic, normal, high sections again and again of LTE Signal.The Part II A2 can excite second mode to produce the radiation signal of GPS/GLONASS frequency ranges.The radiant body 13 The 3rd mode can be excited to produce the radiation signal of WIFI 2.4GHz/5GHz frequency ranges.Therefore the radio communication device 200 can It is same using Long Term Evolution upgrade version (LTE-Advanced) carrier aggregation (CA, Carrier Aggregation) technology When in multiple different frequency ranges receive or send wireless signal to increase transmitting bandwidth.I.e. described radio communication device 200 can be used The carrier aggregation technology and using the antenna structure 100 (such as Part I A1) at the same multiple different frequency ranges receive or Wireless signal is sent, i.e., realizes 2CA or 3CA simultaneously.

Fig. 6 is that first switch unit 151 switches to the first different switching devices described in first switching circuit 15 S parameter (scattering parameter) curve map of the antenna structure 100 when 153.Obviously, described in first switching circuit 15 When one switch unit 151 switches to first different switching device 153 (such as two first different switching devices 153), by There is different impedances in each first switching device 153, therefore by the switching of first switch unit 151, can have Effect adjusts the antenna structure 100 in the frequency of low frequency, and then obtains preferably operating frequency range.

Fig. 7 is that second switch unit 171 switches to the second different switching devices described in second switching circuit 17 S parameter (scattering parameter) curve map of the antenna structure 100 when 173.Obviously, described in second switching circuit 17 When two switch units 171 switch to second different switching device 173 (such as three second different switching devices 173), by There is different impedances in each second switching device 173, therefore by the switching of second switch unit 171, can have Effect adjusts the antenna structure 100 in the frequency of medium-high frequency, and then obtains preferably operating frequency range.

Fig. 8 is the global radiation efficiency curve diagram of the antenna structure 100.Wherein, curve S81 is the antenna structure 100 Global radiation efficiency when low frequency.Curve S82 is global radiation efficiency of the antenna structure 100 when medium, high frequency.Obviously, institute State antenna structure 100 and be operable with corresponding low, middle and high frequency frequency range, and there is preferable high frequency frequency range.

Also referring to Fig. 9, the antenna structure 300 provided for the second preferred embodiment of the invention.

The antenna structure 300 includes housing 11, the first feeding portion 12, the first grounding parts G1, the second grounding parts G2, radiation 33, two second feeding portion S1, S2 of body, the first switching circuit 15 and the second switching circuit 17.Is provided with the housing 11 One breakpoint 118, the second breakpoint 119 and gap 120, and then mark off Part I A1 and Part II from the housing 11 A2.First feeding portion 12 is electrically connected to the Part I A1, and then the Part I A1 is divided into the first radiation Portion E1 and the second irradiation unit E2.First switching circuit 15 is electrically connected to first radiation by the first grounding parts G1 Portion E1.Second switching circuit 17 is electrically connected to the second irradiation unit E2 by the second grounding parts G2.

In the present embodiment, the difference of the antenna structure 300 and antenna structure 100 is the specific knot of the radiant body 33 Structure is different from the structure of radiant body 13.Specifically, in the present embodiment, the radiant body 33 includes the first radiation arm 331, second Radiation arm 332, the 3rd radiation arm 333, the 4th radiation arm 334, the 5th radiation arm 335 and the 6th radiation arm 336.Described first Radiation arm 331, the second radiation arm 332, the 3rd radiation arm 333, the 4th radiation arm 334, the 5th radiation arm 335 and the 6th radiation 336 coplanar setting of arm.One end of first radiation arm 331 is electrically connected to the second feeding portion S2, and the other end is along parallel described The direction of second sidepiece 116 and the close terminal part 114 extends.Second radiation arm, the 332 generally rectangular shaped strip, one End is electrically connected to medium position of first radiation arm 331 away from the side of the second sidepiece 116, and along the parallel end Portion 114 and the direction extension of close first sidepiece 115.One end vertical connection of 3rd radiation arm 333 is to described The one end of two radiation arms 332 away from first radiation arm 331, the other end is along parallel first radiation arm 331 and away from institute The direction extension of terminal part 114 is stated, and is grounded.One end vertical connection of 4th radiation arm 334 is to second radiation arm 332 and the 3rd radiation arm 333 junction, and along parallel first radiation arm 331 and close to the terminal part 114 direction Extension, to be collectively forming " H " type structure with first radiation arm 331, the second radiation arm 332 and the 3rd radiation arm 333.Institute One end vertical connection of the 5th radiation arm 335 is stated to the described one end of 4th radiation arm 334 away from the 3rd radiation arm 333, And extend along the parallel terminal part 114 and close to the direction of second sidepiece 116.6th radiation arm 336 is substantially in Arc, its arc are connected to the described one end of 5th radiation arm 335 away from the 4th radiation arm 334.

It is appreciated that in other embodiments, can also omit the 3rd radiation arm 333, i.e., first spoke is only set Arm 331, the second radiation arm 332, the 4th radiation arm 334, the 5th radiation arm 335 and the 6th radiation arm 336 are penetrated, it is described to cause Radiant body 33 forms a unipole antenna or other antenna frames.

It is appreciated that in other embodiments, one end by the 3rd radiation arm 333 can also be set to be electrically connected to institute The second feeding portion S2 is stated, and one end of first radiation arm 331 is grounded, i.e., feed-in source and ground connection position in described radiant body 33 Putting to exchange.

It is appreciated that in the present embodiment, the difference of the antenna structure 300 and antenna structure 100 also resides in the antenna Structure 300 includes at least five electronic building bricks, i.e. the first electronic component 301, the second electronic component 302, the 3rd electronic component 303rd, the 4th electronic component 304 and the 5th electronic component 305.In the present embodiment, taken the photograph based on first electronic component 301 As head mould group, second electronic component 302 is earphone jack module, and both are arranged at intervals at the first grounding parts G1 and the Between one feeding portion 12.3rd electronic component 303 is a front camera module, and it is arranged at the radiant body 33 and institute Between stating the second grounding parts G2, and the neighbouring gap 120 is set.4th electronic component 304 is a distance-sensor (P- Sensor), it is arranged between the 3rd electronic component 303 and the second grounding parts G2.5th electronic component 305 For audio transceiver (receiver), it is arranged between second electronic component 302 and the 4th electronic component 304, And the neighbouring grounding parts G2 of first feeding portion 12 and second is set.

Also referring to Figure 10, after electric current enters from first feeding portion 12, electric current will flow into first radiation Portion E1, and pass through the first grounding parts G1 ground connection (ginseng path P 5).In addition, when electric current enters from first feeding portion 12 Afterwards, electric current will also flow into the second irradiation unit E2, and pass through the second grounding parts G2 ground connection (ginseng path P 6).In this way, make Obtain the first irradiation unit E1 and the second irradiation unit E2 (i.e. Part I A1) and excite first mode jointly to produce the first frequency range Radiation signal.In the present embodiment, the first mode is LTE mode, including basic, normal, high frequency mode, its frequency range difference For 734-960MHz, 1805-2170MHz and 2300-2690MHz.Specifically, the first irradiation unit E1 produces the spoke of low frequency Signal is penetrated, and the second irradiation unit E2 produces the radiation signal of medium-high frequency.

After electric current is from the second feeding portion S1 feed-ins, electric current will flow into the Part II A2, and pass through described Two part A2 ground connection (ginseng path P 7), and then cause the Part II A2 to excite second mode to produce the radiation of the second frequency range Signal, such as GPS/GLONASS signals (1575-1602MHz).After electric current is from the second feeding portion S2 feed-ins, electric current will It is grounded (ginseng path P 8) by the radiant body 33 and by the 3rd radiation arm 333.So so that the radiant body 33 can The 3rd mode is worked in produce the radiation signal of the 3rd frequency range, such as WIFI 2.4GHz mode and WIFI 5GHz mode.

Also referring to Figure 11-13, Figure 11 is the S parameter when antenna structure 300 works in LTE low, middle and high frequency sections (scattering parameter) curve map.When Figure 12 is that the antenna structure 300 works in WIFI 2.4GHz frequency ranges and WIFI 5GHz frequency ranges S parameter (scattering parameter) curve map.Figure 13 is the S parameter when antenna structure 300 works in GPS/GLONASS frequency ranges (scattering parameter) curve map.

Also referring to Figure 14, the antenna structure 400 provided for the 3rd preferred embodiment of the invention.

The antenna structure 400 includes housing 11, the first feeding portion 12, the first grounding parts G1, the second grounding parts G2, second Feeding portion S2, radiant body 43, the first switching circuit 15 and the second switching circuit 17.The first breakpoint is provided with the housing 11 118th, the second breakpoint 119 and gap 120, and then mark off Part I A1 and Part II A2 from the housing 11.It is described First feeding portion 12 is electrically connected to the Part I A1, and then the Part I A1 is divided into the first irradiation unit E1 and Two irradiation unit E2.First switching circuit 15 is electrically connected to the first irradiation unit E1 by the first grounding parts G1.Institute State the second switching circuit 17 and the second irradiation unit E2 is electrically connected to by the second grounding parts G2.

In the present embodiment, one of the antenna structure 400 and difference of antenna structure 100 are that the Part II A2 connects The position on ground is different.Specifically, the Part II A2 is grounded in close to the position in the gap 120.In addition, antenna structure 400 only include a second feeding portion S2, i.e. the second feeding portion S1 is omitted, and the concrete structure and radiant body of the radiant body 43 13 structure is different.It is, of course, understood that in other embodiments, Part II A2's connects in the antenna structure 400 The position that position be can be configured as with Part II A2 in the antenna structure 100 is grounded is identical, i.e., described Part II A2 It is to be grounded in close to the position of second breakpoint 119.

In the present embodiment, the radiant body 43 includes being sequentially connected the first radiant section 431, the second radiant section 432, the Three radiant sections 433, the 4th radiant section 434 and the 5th radiant section 435.First radiant section, the 431 generally rectangular shaped sheet, one End is electrically connected to the second feeding portion S2, and the other end is along the parallel terminal part 114 and close to the side of second sidepiece 116 To extension.Second radiant section 432 is substantially in vertical bar shape, and its one end vertical connection to first radiant section 431 is away from institute The second feeding portion S2 one end is stated, the other end is along parallel second sidepiece 116 and the direction away from the terminal part 114 is prolonged Stretch.3rd radiant section 433 is substantially in vertical bar shape, and its one end vertical connection to second radiant section 432 is away from described One end of one radiant section 431, the other end extend along the parallel terminal part 114 and close to the direction of second sidepiece 116.Institute It is substantially in vertical bar shape to state the 4th radiant section 434, and its one end vertical connection to the 3rd radiant section 433 is away from the described second radiation Section 432 one end, the other end along parallel second sidepiece 116 and close to the terminal part 114 direction extend, and then with institute State the second radiant section 432 and the 3rd radiant section 433 collectively forms U-shape structure.5th radiant section 435 is substantially in vertical bar shape, Its one end vertical connection is to the described one end of 4th radiant section 434 away from the 3rd radiant section 433, and the other end is along parallel described Terminal part 114 and the direction extension away from second sidepiece 116, and then radiated with the 3rd radiant section 433 and the 4th Section 434 collectively forms U-shape structure.

Also referring to Figure 15, after electric current enters from first feeding portion 12, electric current will flow into first radiation Portion E1, and pass through the first grounding parts G1 ground connection (ginseng path P 9).In addition, when electric current enters from first feeding portion 12 Afterwards, electric current will also flow into the second irradiation unit E2, and pass through the second grounding parts G2 ground connection (ginseng path P 10).In this way, make Obtain the first irradiation unit E1 and the second irradiation unit E2 (i.e. Part I A1) and excite first mode jointly to produce the first frequency range Radiation signal.In the present embodiment, the first mode is LTE mode, including low frequency and intermediate frequency mode, its frequency range difference For 734-960MHz and 1805-2170MHz.Specifically, the first irradiation unit E1 produces the radiation signal of low frequency, and it is described Second irradiation unit E2 produces the radiation signal of intermediate frequency.

After electric current is from the second feeding portion S2 feed-ins, electric current will flow into the radiant body 43, and then cause the spoke Beam 43 is operable with the 3rd mode to produce the radiation signal of the 3rd frequency range (ginseng path P 11).In the present embodiment, described Three mode include LTE high-frequency bands (2300-2690MHz), Bluetooth band and the WIFI frequency ranges of first mode.In addition, work as institute When stating electric current and flowing through the radiant body 43, the electric current also will couple to the Part II A2, and be grounded (ginseng path P 12), enter And the Part II A2 is caused to excite the second mode to produce the radiation signal of the second frequency range, such as GPS/ GLONASS signal (1575-1602MHz).

Figure 16 is referred to, in one of the embodiments, the second feeding portion S2 includes duplexer 451 and signal extraction Device 453.Two output ends of the duplexer 451 are realizing that Wi-Fi 2.4GHz signals and LTE high-frequency signals share signal The function in input/output path.In addition, the dector 453 is providing GPS/GLONASS signals and non-GPS/ The function in GLONASS signal (such as Wi-Fi 2.4GHz signals and LTE high-frequency signals) shared signal output/input path.

It is appreciated that also referring to Figure 17, in other embodiments, the second feeding portion S2 can also only include three works Device 455.Wherein, the triplexer 455 to realize the GPS/GLONASS signals and non-GPS/GLONASS signals (such as Wi-Fi 2.4GHz and LTE high-frequency signals) shared signal output/input path function.

It is that the antenna structure 400 works in GPS/GLONASS frequency ranges, first also referring to Figure 18 and Figure 19, Figure 18 S parameter (scattering parameter) curve map when high-frequency band of mode, Bluetooth band and Wi-Fi frequency ranges.Figure 19 is the day knot Structure 400 works in global radiation effect when GPS/GLONASS frequency ranges, the high-frequency band of first mode, Bluetooth band and Wi-Fi frequency ranges Rate curve map.

Obviously, the antenna structure 100/300/400 is by setting the housing 11, and utilizes the fluting on the housing 11 117th, the first breakpoint 118, the second breakpoint 119 and gap 120 mark off corresponding Part I A1 and from the housing 11 Two part A2, it so may be such that the antenna structure 100/300/400 is not only restricted to the limitation of clearance zone and distance to the ground, effectively Realize that wideband designs, and keep preferable high-frequency effect.

Embodiment 4

Figure 20 is referred to, the 4th 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 21, the antenna structure 500 includes housing 51, feeding portion 53, resonance part 55 and grounding parts 56.The housing 51 can be the shell of the radio communication device 600.In the present embodiment, the housing 51 is by metal material Material is made.The housing 51 includes front frame 511, backboard 512 and frame 513.The front frame 511, backboard 512 and frame 513 can To be integrally formed.The front frame 511, backboard 512 and frame 513 form the shell of the radio communication device 600.Institute State and an opening (figure is not marked) is provided with front frame 511, for housing the display unit 601 of the radio communication device 600.Can be with Understand, the display unit 601 has a display plane, and the display plane is exposed to the opening, and the display plane with it is described Backboard 512 is arranged substantially in parallel.

Also referring to Figure 22, the backboard 512 is oppositely arranged with the front frame 511.The backboard 512 and frame 513 It is directly connected to, does not have space between the backboard 512 and frame 513.The single sheet metal that the backboard 512 is formed in one, To appear camera lens 604 and the grade element of flash lamp 605, the backboard 512 sets perforate 606,607.On the backboard 512 simultaneously It is not provided with any fluting, broken string or breakpoint for being used to split the insulation of the backboard 512.The backboard 512 is equivalent to described The ground of antenna structure 500 and the 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。

The first perforate 518, the second perforate 519 and fluting 520 are further opened with the frame 513.Opened in the front frame 511 Provided with the first breakpoint 521 and the second breakpoint 522.The perforate 519 of first perforate 518 and second is opened in the terminal part On 515, both are arranged at intervals and penetrate the terminal part 515.

The radio communication device 600 also includes an at least electronic component.In the present embodiment, the radio communication device 600 include the first electronic component 602 and the second electronic component 603.First electronic component 602 is an earphone interface module, It is arranged in the accommodation space 514, and neighbouring second sidepiece 517 is set.First electronic component 602 with it is described First perforate 518 is corresponding, and such user can be inserted an earphone by first perforate 518, so with described first electricity Subcomponent 602, which is established, to be electrically connected with.

Second electronic component 603 is a USB module, and it is arranged in the accommodation space 514, and positioned at described the Between one electronic component 602 and first sidepiece 516.Second electronic component 603 is relative with second perforate 519 Should, such user can be inserted a USB device by second perforate 519, and then be established with second electronic component 603 It is electrically connected with.

In the present embodiment, the fluting 520 is laid on the terminal part 515, and connect first perforate 518 and Second perforate 519, and extend respectively to the sidepiece 517 of the first sidepiece 516 and second.

The breakpoint 522 of first breakpoint 521 and second connects with the fluting 520, and extends to the cut-off front frame 511.In the present embodiment, first breakpoint 521 is opened in the front frame 511, and is laid in the fluting 520 described The first end D1 connections of first sidepiece 516.Second breakpoint 522 is opened in the front frame 511, and with it is described fluting 520 It is laid in the second end D2 connections of second sidepiece 517.In this way, the 520, first breakpoint 521 of the fluting and the second breakpoint 522 The housing 51 is divided into the antenna part F1 and access area F2 of spaced setting jointly.Wherein, by institute in the housing 51 State the part that fluting 520, the first breakpoint 521 and the second breakpoint 522 surround jointly and form the antenna part F1, the housing 51 is surplus Remaining part then forms the access area F2.In the present embodiment, the antenna part F1 forms the antenna of the electronic installation 500 Structure, to receive and/or launch radio wave to transmit, exchange wireless signal.The access area F2 ground connection.

It is appreciated that in the present embodiment, the fluting 520 is opened in the frame 513 close to the one of the backboard 512 End, and the edge of the front frame 511 is extended to, to cause the antenna part F1 to be made up of completely the part front frame 511.When So, in other embodiments, the fluting 520 opens up position and can be also adjusted according to real needs.For example, the fluting 520 are opened in the frame 513 close to one end of the backboard 512, and extend towards the place direction of front frame 511, to cause The antenna part F1 is made up of the part front frame 511 and the part frame 513.

It is appreciated that in other embodiments, the fluting 520 can also be only arranged at the terminal part 515, and not extend The terminal part is arranged to any one in the sidepiece 517 of the first sidepiece 516 and second, or the fluting 520 515, and only along one of extending in the sidepiece 517 of the first sidepiece 516 and second.In this way, first breakpoint 521 And second breakpoint 522 position also can according to it is described fluting 520 position be adjusted.For example, first breakpoint 521 and Two breakpoints 522 can be opened in the position of the corresponding terminal part 515 of the front frame 511.For example, first breakpoint 521 and One in second breakpoint 522 position that can be opened in the corresponding terminal part 515 of the front frame 511, and first breakpoint 521 and second another in breakpoint 522 can be opened in the corresponding sidepiece 517 of first sidepiece 516 or second of the front frame 511 Position.Obviously, shape, position and the breakpoint 522 of first breakpoint 521 and second of the fluting 520 are in the frame Position on 512 can be adjusted according to real needs, it is only necessary to ensure the fluting 520, first breakpoint 521 and second The housing 51 can be divided into spaced antenna part F1 and access area F2 by breakpoint 522 jointly.

It is appreciated that in the present embodiment, in the present embodiment, except the position of the first perforate 518 and the second perforate 519 In addition, the fluting 520, in the breakpoint 522 of first breakpoint 521 and second filled with insulating materials (such as plastic cement, rubber Glue, glass, timber, ceramics etc., but do not limited with this As), and then separate the antenna part F1 and access area F2.

It is appreciated that in the present embodiment, the feeding portion 53 is arranged in the accommodation space 514, and positioned at described First electronic component 602 is adjacent to the side of second sidepiece 517.The feeding portion 53 to for the antenna part F1 feed-ins electricity Stream, and the antenna part F1 is divided into two parts, i.e. the first branch B1 and the second branch B2.Wherein, the feeding portion 53 1 The front frame 511 of side is until the part of first breakpoint 521 forms the first branch B1.Before the opposite side of feeding portion 53 Frame 511 is until the part of second breakpoint 522 forms the second branch B2.In the present embodiment, the feeding portion 53 is opened If position be not to correspond to the centre of the antenna part F1, therefore the length of the first branch B1 is more than the second branch B2's Length.The length of the second branch B2 equal to the second branch B2 highest operating frequency corresponding to wavelength four/ One.

The resonance part 55 is a meander-like lamellar body, and it is arranged in the accommodation space 514.The resonance part 55 includes First resonance paragraph 551, the second resonance paragraph 553, the 3rd resonance paragraph 555 and the 4th resonance paragraph 557.First resonance paragraph 551, The 555 coplanar setting of second resonance paragraph 553 and the 3rd resonance paragraph, and be arranged at jointly substantially parallel with the backboard 512 In plane.First resonance paragraph, the 551 generally rectangular shaped strip, its one end vertical connection to the first branch B1 is close to described The side of first breakpoint 521, and extend along the parallel terminal part 515 and close to the direction of second sidepiece 517.Described Two resonance paragraphs, 553 generally rectangular shaped strip, its one end vertical connection to first resonance paragraph 551 is away from first breakpoint 521 one end, and extend along parallel first sidepiece 516 and close to the direction of the terminal part 515.3rd resonance paragraph 555 generally rectangular shaped strips, its one end vertical connection to one of second resonance paragraph 553 away from first resonance paragraph 551 End, and extend along parallel first resonance paragraph 551 and close to the direction of second sidepiece 517.3rd resonance paragraph 555 Across second electronic component 603.3rd resonance paragraph 555 is with the backboard 512 respectively positioned at second electronics member The both sides of part 603.4th resonance paragraph 557 is integrally located at and the place plane of the first resonance paragraph 551 and the backboard 512 In the vertical plane of place plane.4th resonance paragraph, the 557 generally rectangular shaped strip, its vertical connection to the described 3rd resonance 555 one end away from second resonance paragraph 553 of section, and extend along close to the direction of the backboard 512, and be electrically connected to described Backboard 512, that is, be grounded.In the present embodiment, the length of the 3rd resonance paragraph 555 is more than the length of first resonance paragraph 551 Degree, the length of first resonance paragraph 551 are more than the length of the second resonance paragraph 553.

The grounding parts 56 are arranged in the accommodation space 514.One end of the grounding parts 56 is electrically connected to described For two branch B2 close to the side of second breakpoint 522, the other end is electrically connected to the backboard 512, that is, is grounded, and then is described Second branch B2 provides ground connection.

It is appreciated that also referring to Figure 23, in the present embodiment, after electric current enters from the feeding portion 53, electric current The first branch B1 of the antenna part F1 will be flowed into, and flow to the resonance part 55, finally by the 4th of the resonance part 55 the Resonance paragraph 557 is grounded.In this way, it may be such that the feeding portion 53, the first branch B1 and the resonance part 55 collectively form one time Road antenna, and a first mode is excited jointly to produce the radiation signal of the first frequency range (please join path P 1).Meanwhile when electric current from After the feeding portion 53 enters, electric current will flow into the second branch B2 of the antenna part F1, and is grounded by the grounding parts 56. In this way, may be such that the feeding portion 53, the second branch B2 and the grounding parts 56 collectively form inverted F shaped antenna, and swash jointly A second mode is sent out to produce the radiation signal of the second frequency range (path P 2 please be join).In the present embodiment, the first mode is LTE-A low frequency modals.First frequency range is 704-960MHz frequency ranges.The second mode is LTE-A medium, high frequency mode.Institute The frequency for stating the second frequency range is higher than the frequency of first frequency range.Second frequency range includes 1710-2170MHz and 2300- 2690MHz frequency ranges.

It is appreciated that also referring to Figure 21 and Figure 23, in other embodiments, to adjust the frequency of first frequency range Width, that is, cause the electronic installation 500 that there is preferable low frequency bandwidth, the electronic installation 500 also includes the first switching circuit 57.First switching circuit 57 is arranged in the accommodation space 514.One end of first switching circuit 57 is electrically connected to The described one end of 4th resonance paragraph 557 away from the 3rd resonance paragraph 555, to be electrically connected to described by the resonance part 55 One branch B1, the other end of first switching circuit 57 are electrically connected to the backboard 512, that is, are grounded.

Also referring to Figure 24, first switching circuit 57 includes the first switch unit 571 and at least one first switching Element 573.First switch unit 571 is electrically connected to the 4th resonance paragraph 557, to be electrically connected by the resonance part 55 To the first branch B1.First switching device 573 can be the combination of inductance, electric capacity or inductance and electric capacity.It is described It is parallel with one another between first switching device 573, and its one end is electrically connected to first switch unit 571, other end electrical connection To the backboard 512, that is, it is grounded.In this way, the switching by controlling first switch unit 571, may be such that the described 4th is common Section of shaking 557 switches to the first different switching devices 573.Because each first switching device 573 has different impedances, because This can adjust the first frequency caused by the first mode of the first branch B1 by the switching of first switch unit 571 Section.

It is appreciated that referring to Figure 21 and Figure 23, in other embodiment, for cause the second branch B2 have compared with Good medium-high frequency frequency range, the antenna structure 500 also include the second switching circuit 58.One end electricity of second switching circuit 58 The grounding parts 56 are connected to, to be electrically connected to the second branch B2 by the grounding parts 56, the other end is electrically connected to institute Backboard 512 is stated, that is, is grounded.

Also referring to Figure 25, second switching circuit 58 includes the second switch unit 581 and at least one second switching Element 583.Second switch unit 581 is electrically connected to the grounding parts 56, to be electrically connected to institute by the grounding parts 56 State the second branch B2.Second switching device 583 can be the combination of inductance, electric capacity or inductance and electric capacity.Described second It is parallel with one another between switching device 583, and its one end is electrically connected to second switch unit 581, the other end is electrically connected to institute Backboard 512 is stated, that is, is grounded.In this way, the switching by controlling second switch unit 581, may be such that the second branch B2 Switch to the second different switching devices 583.Because each second switching device 583 has different impedances, therefore pass through The switching of second switch unit 581, it can adjust the second frequency range caused by the second mode of the second branch B2.

It is appreciated that the backboard 512 can be as the antenna structure 500 and the ground of the radio communication device 600. In another embodiment, the screen for shielding electromagnetic interference can be set towards the side of backboard 512 in the display unit 601 Cover the center of cover (shielding mask) or the support display unit 601.The radome or center are with metal material system Make.The radome or center can be connected with the backboard 512 to be used as the antenna structure 500 and the radio communication The ground of device 600.It is grounded in above-mentioned everywhere, the radome or center can substitute the backboard 512 for the day Cable architecture 500 or the radio communication device 600 are grounded.

It is appreciated that referring to Figure 21, in the present embodiment, the antenna structure 500 also includes connecting portion 59.Institute State 59 generally rectangular shaped strip of connecting portion.One end vertical connection of the connecting portion 59 is to the first branch B1 close to described The position of two electronic components 603, other end vertical connection to the 3rd resonance paragraph 555.The feeding portion 53 and the connection The length of the first branch B1 between portion 59 and the same length of the second branch B2.Said feeding portion 53 The first branch B1, the connecting portion 59 and the connecting portion 59 and the described 4th between the connecting portion 59 are total to The 3rd resonance paragraph 555 between section of shaking 557 can form another medium-high frequency resonance current, and then effectively lift second mould The radiation characteristic of second frequency range of state.

Figure 26 is that the antenna structure 500 works in LTE-A low frequency modals (704-960MHz), LTE-A intermediate frequency mode S parameter (scattering parameter) curve map when (1710-2170MHz) and LTE-A high frequencies mode (2300-2690MHz).Figure 27 is institute State antenna structure 500 work in LTE-A low frequency modals (704-960MHz), LTE-A intermediate frequencies mode (1710-2570MHz) and Global radiation efficiency curve diagram during LTE-A high frequencies mode (2300-2690MHz).

Obviously, it was found from Figure 26 and Figure 27, the antenna structure 500 is operable with corresponding low frequency band, such as 704- 960MHz frequency ranges.In addition, the antenna structure 500 may also be operated in Mid Frequency (1710-2170MHz frequency ranges) and high band (i.e. 2300-2690MHz frequency ranges), that is, cover to basic, normal, high frequency, and frequency range is wider, and when the antenna structure 500 works When above-mentioned frequency range, its working frequency can meet Antenna Operation design requirement, and have preferable radiation efficiency.Furthermore institute Antenna structure 500 is stated by setting the switching circuit 58 of the first switching circuit 57 and second, due to each the first switching member The switching device 583 of part 573 and/or second has different impedances, therefore passes through first switch unit 571 and/or second The switching of switch unit 581, can effectively adjust the antenna structure 500 in the frequency range of low frequency, intermediate frequency and high frequency, so obtain compared with Good operation frequency range.

As described in previous embodiments, the antenna structure 500 by set it is described fluting the 520, first breakpoint 521 and Second breakpoint 522, the front frame 511 is divided into antenna part F1 and access area F2.The antenna structure 500 is additionally provided with feedback Enter portion 53, the antenna part F1 is further divided into the first branch B1 and the second branch B2, and corresponding resonance part is set 55, and then cause the feeding portion 53, the first branch B1 and the resonance part 55 to collectively form primary Ioops antenna, to excite the One mode is to produce the radiation signal of low frequency band.In addition, the feeding portion 53 forms reversed F-typed day with the second branch B2 Line, the radiation signal of medium, high frequency frequency range is produced to excite second mode.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 and described first point Branch B1, the second branch B2 and resonance part 55 receive or sent wireless signal to increase transmitting bandwidth in multiple different frequency ranges simultaneously.

In addition, the antenna structure 500 is by setting the housing 51, and the first perforate 518, second on the housing 51 Perforate 519, the 519, first breakpoint 521 of fluting and the second breakpoint 522 may be contained within the front frame 511 and frame 513, not set It is placed on the backboard 512 so that the backboard 512 forms all-metal construction, i.e., what is do not insulated on described backboard 512 opens Groove, broken string or breakpoint so that the backboard 512 can avoid due to slot, break or the setting of breakpoint and influence the complete of backboard 512 Whole property and aesthetic property.

The antenna structure 100 of first preferred embodiment of the invention, the second preferred embodiment of the invention antenna structure 300, The antenna structure 400 of 3rd preferred embodiment of the invention and the antenna structure 500 of the 4th preferred embodiment of the invention can be applicable to Same radio communication device.Such as antenna structure 100,300 or 400 is arranged on the upper end of the radio communication device as pair Antenna, and antenna structure 500 is arranged on the lower end of the radio communication device as primary antenna.When the radio communication device is sent During wireless signal, the radio communication device sends wireless signal using the primary antenna.When the radio communication device receives wirelessly During signal, the radio communication device receives wireless signal together using the primary antenna and the slave antenna.

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

1. a kind of antenna structure, including：

Housing, fluting, the first breakpoint and gap is offered on the housing, the fluting includes first end and the second end, institute State the first breakpoint and be opened in the position that the housing corresponds to the first end, and penetrated with the fluting, the gap is opened in The housing corresponds to the part between the first end and the second end, and is penetrated with the fluting, first breakpoint, the seam Gap and the fluting mark off spaced Part I and Part II from the housing jointly, first breakpoint with Housing between the gap forms the Part I, and the housing between the gap and second end forms described second Part；

First feeding portion, first feeding portion is electrically connected to the Part I, and the Part I is divided into first Irradiation unit and the second irradiation unit, the housing at first feeding portion to first breakpoint form first irradiation unit, institute State the housing at the first feeding portion to the gap and form second irradiation unit；

Wherein, the length of second irradiation unit is less than the length of the Part II, and the length of the Part II is less than institute State the length of the first irradiation unit, the Part I is to excite first mode, and the Part II is exciting second mode.

2. antenna structure as claimed in claim 1, it is characterised in that：Filled in the fluting, the first breakpoint and gap There is insulating materials.

3. antenna structure as claimed in claim 1, it is characterised in that：The housing comprises at least front frame and frame, before described Frame is set around the periphery of the frame, and described to be opened in the frame, first breakpoint and gap are opened in institute State in front frame.

4. antenna structure as claimed in claim 1, it is characterised in that：It is further opened with the second breakpoint on the housing, described Two breakpoints are opened in the position that the housing corresponds to second end, and are penetrated with the fluting, the gap and described second Housing between breakpoint forms the Part II.

5. antenna structure as claimed in claim 1, it is characterised in that：The antenna structure also includes radiant body and 2 second feedbacks Enter portion, wherein one second feeding portion is electrically connected to the Part II, another second feeding portion is electrically connected to the radiant body, institute State Part II ground connection.

6. antenna structure as claimed in claim 5, it is characterised in that：After electric current enters from first feeding portion, it will flow It is grounded through first irradiation unit, and by first grounding parts, after electric current enters from first feeding portion, electric current is also Second irradiation unit will be flowed into, and will be grounded by second grounding parts so that first irradiation unit and the second irradiation unit The first mode is excited jointly to produce the radiation signal of the first frequency range, after electric current is from wherein one second feeding portion feed-in, Electric current will flow into the Part II, and be grounded by the Part II, and then cause the Part II to excite described the Two mode after electric current is from another second feeding portion feed-in, will flow into the spoke to produce the radiation signal of the second frequency range Beam so that the radiant body works in the 3rd mode to produce the radiation signal of the 3rd frequency range.

7. antenna structure as claimed in claim 6, it is characterised in that：The first mode is LTE mode, the second mode For GPS/GLONASS mode, the 3rd mode is WIFI mode.

8. antenna structure as claimed in claim 5, it is characterised in that：The radiant body includes connecting portion, the first branch and the Two branches, the connecting portion include the first linkage section and the second linkage section, and first linkage section is electrically connected to described wherein one Second feeding portion, for feed-in current signal to the radiant body, one end vertical connection of second linkage section to described The end of one linkage section, to be formed L-type structure with first linkage section, first branch includes the first extension, second Extension and the 3rd extension, first extension one end are connected to one of second linkage section away from the first linkage section End, the other end continues to extend along the bearing of trend of second linkage section, to be located at same straight line, institute with second linkage section Second extension one end vertical connection is stated to the described one end of first extension away from the second linkage section, the other end is along parallel described First linkage section and the direction extension away from first extension, described 3rd extension one end is electrically connected to described second and prolonged End of the section away from the first extension is stretched, the other end is along parallel second linkage section and close to the direction of first linkage section Extension, second branch include the first resonance paragraph and the second resonance paragraph, one end vertical connection of first resonance paragraph to institute The second linkage section and the tie point of the first extension are stated, and is extended along the direction of parallel first linkage section, described second is common Section one end vertical connection of shaking is to end of first resonance paragraph away from second linkage section and the first extension, other end edge The direction of vertical first resonance paragraph and close second extension extends, and then is collectively formed with first resonance paragraph L-type structure.

9. antenna structure as claimed in claim 5, it is characterised in that：The antenna structure also includes the 3rd grounding parts, described Radiant body includes the first radiation arm, the second radiation arm, the 3rd radiation arm, the 4th radiation arm, the 5th radiation arm and the 6th radiation Arm, described second radiation arm one end are vertically electrically connected to the medium position of the first radiation arm side, the 3rd radiation arm One end vertical connection to the one end of second radiation arm away from first radiation arm, the other end is along parallel first spoke Penetrate the direction extension of arm, the connection of one end vertical connection of the 4th radiation arm to second radiation arm and the 3rd radiation arm Place, and along parallel first radiation arm and the direction away from the 3rd radiation arm extends, with first radiation arm, the Two radiation arms and the 3rd radiation arm are collectively forming " H " type structure, one end vertical connection of the 5th radiation arm to described The one end of four radiation arms away from the 3rd radiation arm, and extend along the direction of parallel second radiation arm, the 6th spoke Penetrate that arm is curved, its arc is connected to the described one end of 5th radiation arm away from the 4th radiation arm, first radiation arm Wherein one second feeding portion, first radiation arm and the described 3rd are electrically connected to one of the 3rd radiation arm Radiation arm in addition one of be electrically connected to the 3rd grounding parts.

10. antenna structure as claimed in claim 5, it is characterised in that：The radiant body includes the first radiation arm, the second radiation Arm, the 4th radiation arm, the 5th radiation arm and the 6th radiation arm, one end of first radiation arm are electrically connected to described wherein one Second feeding portion, described second radiation arm one end are vertically electrically connected to the medium position of the first radiation arm side, and described One end vertical connection of four radiation arms is to the one end of second radiation arm away from first radiation arm, and along parallel described The direction extension of one radiation arm, one end vertical connection of the 5th radiation arm is to the 4th radiation arm away from second spoke One end of arm is penetrated, and is extended along the direction of parallel second radiation arm, the 6th radiation arm is curved, and its arc is connected to The described one end of 5th radiation arm away from the 4th radiation arm.

11. antenna structure as claimed in claim 1, it is characterised in that：The antenna structure also includes the first switching circuit, institute State the first switching circuit and be electrically connected to institute including the first switch unit and at least one first switching device, first switch unit State the first grounding parts, it is parallel with one another between at least one first switching device, and the one of at least one first switching device End is electrically connected to first switch unit, and the other end of at least one first switching device is electrically connected to the ground connection Face, by the switching for controlling first switch unit so that first irradiation unit switches to the first different switching devices, And then adjust the frequency range of first irradiation unit.

12. antenna structure as claimed in claim 1, it is characterised in that：The antenna structure also includes the second switching circuit, institute State the second switching circuit and be electrically connected to institute including the second switch unit and at least one second switching device, second switch unit State the second grounding parts, it is parallel with one another between at least one second switching device, and the one of at least one second switching device End is electrically connected to second switch unit, and the other end of at least one second switching device is electrically connected to the ground connection Face, by the switching for controlling second switch unit so that second irradiation unit switches to the second different switching devices, And then adjust the frequency range of second irradiation unit.

13. antenna structure as claimed in claim 1, it is characterised in that：Radio communication device is using carrier aggregation technology and makes Wireless signal is received or sends with the Part I in multiple different frequency ranges simultaneously.

14. antenna structure as claimed in claim 1, it is characterised in that：The antenna structure also includes radiant body and the second feedback Enter portion, second feeding portion is electrically connected to the radiant body, the Part II ground connection.

15. antenna structure as claimed in claim 14, it is characterised in that：, will after electric current enters from first feeding portion First irradiation unit is flowed through, and is grounded by first grounding parts, after electric current enters from first feeding portion, electric current Second irradiation unit will be also flowed into, and will be grounded by second grounding parts so that first irradiation unit and the second radiation Portion excites the first mode to produce the radiation signal of the first frequency range jointly, after electric current is from the second feeding portion feed-in, The radiant body will be flowed into, and is coupled to the Part II so that the Part II excites the second mode to produce The radiation signal of second frequency range, while the electric current of the radiant body is flowed into so that the radiant body works in the 3rd mode to produce The radiation signal of 3rd frequency range.

16. antenna structure as claimed in claim 15, it is characterised in that：The first mode is LTE mode, second mould State is GPS/GLONASS mode, and the 3rd mode includes high-frequency band, Bluetooth band and the WIFI frequency ranges of first mode.

17. antenna structure as claimed in claim 14, it is characterised in that：The radiant body includes the first radiation being sequentially connected Section, the second radiant section, the 3rd radiant section, the 4th radiant section and the 5th radiant section, the first radiant section one end are electrically connected to institute State the second feeding portion, the second radiant section one end vertical connection to one of first radiant section away from second feeding portion End, the 3rd radiant section one end vertical connection to the one end of second radiant section away from first radiant section, described the Four radiant section one end vertical connections are to the described one end of 3rd radiant section away from second radiant section, and the other end is along parallel described The direction extension of second radiant section, and then collectively form U-shape structure with second radiant section and the 3rd radiant section, the described 5th Radiant section one end vertical connection is to the described one end of 4th radiant section away from the 3rd radiant section, and the other end is along parallel described The direction of three radiant sections and close second radiant section extends, and then common with the 3rd radiant section and the 4th radiant section Form U-shape structure.

18. antenna structure as claimed in claim 17, it is characterised in that：After electric current enters from first feeding portion, electricity Stream will flow into first irradiation unit, and be grounded by first grounding parts, after electric current enters from first feeding portion, Electric current will flow into second irradiation unit, and be grounded by second grounding parts so that first irradiation unit and the second spoke Penetrate portion and excite first mode jointly to produce the radiation signal of the first frequency range, after electric current is from the second feeding portion feed-in, electricity Stream will flow into the radiant body, and be coupled to the Part II so that the Part II excites the second mode to produce The radiation signal of raw second frequency range, while the electric current of the radiant body is flowed through so that the radiant body works in the 3rd mode to produce The radiation signal of raw 3rd frequency range.

19. antenna structure as claimed in claim 18, it is characterised in that：The first mode is LTE mode, second mould State is GPS/GLONASS mode, and the 3rd mode includes high-frequency band, Bluetooth band and the WIFI frequency ranges of first mode.

20. antenna structure as claimed in claim 19, it is characterised in that：Second feeding portion includes duplexer and signal carries Take device, two output ends of the duplexer to realize Wi-Fi 2.4GHz signals and LTE high-frequency signals share signal output/ The function in path is inputted, the dector shares letter to provide GPS/GLONASS signals and non-GPS/GLONASS signals The function in number input/output path.

21. antenna structure as claimed in claim 19, it is characterised in that：Second feeding portion includes triplexer, and described three Work device is realizing that the GPS/GLONASS signals and non-GPS/GLONASS signals share the work(in signal output/input path Energy.

22. a kind of radio communication device, including the antenna structure as any one of claim 1-21.