CN103390796B - A kind of mobile phone terminal antenna - Google Patents

A kind of mobile phone terminal antenna Download PDF

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Publication number
CN103390796B
CN103390796B CN201310321813.6A CN201310321813A CN103390796B CN 103390796 B CN103390796 B CN 103390796B CN 201310321813 A CN201310321813 A CN 201310321813A CN 103390796 B CN103390796 B CN 103390796B
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described
antenna
part
end
mobile phone
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CN201310321813.6A
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CN103390796A (en
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何其娟
孙劲
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上海安费诺永亿通讯电子有限公司
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Abstract

The invention provides a kind of mobile phone terminal antenna, the main antenna comprise metal shell, being attached thereto by dielectric and slave antenna, main antenna is used for receiving and wireless signal emission, and slave antenna transmits and receives as the signal of diversity antenna for GPS/WIFI frequency range.Main antenna is arranged at the lower end of metal shell, comprise main antenna radiation body, the first feed part, inductance and second circuit part, first feed part and inductance are positioned on the upper surface of main antenna radiation body and metal shell junction, second circuit part is positioned on the lower surface of main antenna radiation body and metal shell junction, second circuit part, by its whether ground connection of the inner switch control rule arranged, realizes different working frequency range.Present invention achieves the one-body molded design by techniques such as injection mouldings of metal shell and antenna part, insertion switch and inductance in addition, achieves the operating state of two frequency ranges, can meet multiband communication, and can adjusted design antenna easily.

Description

A kind of mobile phone terminal antenna

Technical field

The present invention relates to antenna design techniques field, particularly relate to a kind of mobile phone terminal antenna.

Background technology

Miniaturized multiband built-in aerial is the developing direction of hand-held communication terminal antenna always, and existing antenna form comprises multi-frequency monopole sub antenna, monocycle or double loop antenna, inverted folded antenna (IFA), planar inverted folded antenna (PIFA).These antenna type respectively has its condition used and performance in different hand-held communication terminal environment, can select different antenna forms according to different requirements.

Usual mobile terminal device comprises GSM850/900, DCS, PCS, UMTS, and its frequency range is 0.824GHz-0.96GHz, 1.71GHz-2.17GHz.Along with the development of LTE technology, the frequency-portions of 1700MHz, 3.5GHz, 4GHz receives much concern.More and more many mobile phones need antenna to meet traditional 2G network frequency range and LTE frequency range simultaneously, and the development of the mobile terminals such as mobile phone is more and more diversified.

Have in prior art and much realize the method for designing of metal as an antenna part.The patent No. is the form of the patent employing slot antenna of EP1858112B1, using the part of metallic plate as antenna.The patent No. is the patent of US2012206302A1, adopts loop antenna that handset mode is coupled to antenna, in disclosed technology, and placement sky, above and below metal shell or left and right side wire spoke beam; A kind of embodiment disclosed in it is metal shell one end is low-frequency antenna, other end high frequency antenna, implement double-fed structure, but if this programme only uses a feed, double-fed structure needs duplexer to realize; Meanwhile, this antenna structure needs Supporting Media, antenna cover medium, and for convenience of the fluting of feed, low-and high-frequency is that independently two antennas take larger space, also needs to consider isolating problem simultaneously.

Summary of the invention

Be the problem of 1710MHz-2170MHz for solve metal shell individual antenna wideband covering frequence scope be 700MHz-960MHz and frequency range, adapt to large-screen handset size better as 5 cun of mobile phone display screens, it is other antenna headspace simultaneously, the invention provides a kind of mobile phone terminal antenna, there is multi-plane shape structure, metal shell and antenna part can be fully-integrated, and technical performance is better, and method is simpler.

The present invention is a kind of mobile phone terminal antenna, and be arranged at for transmitting and receiving wireless signal in a mobile phone terminal, it is characterized in that, described mobile phone terminal antenna comprises:

Housing, has electric conductivity;

Antenna part, comprises main antenna, and described main antenna comprises main antenna radiation body, and described main antenna radiation body is the lid of one end open, and the openend of described main antenna radiation body is connected by the lower end of dielectric with described housing;

Wherein, described main antenna part also comprises the first feed part, the first circuit part and second circuit part, described first feed part and described second circuit part are connected on the upper surface of the junction of described main antenna radiation body and described housing, described first circuit part is connected on the lower surface of the junction of described main antenna radiation body and described housing, and described feed part, the first circuit part and second circuit part are all connected described housing and described main antenna radiation body.

In some embodiments, described antenna part also comprises slave antenna, described slave antenna comprises slave antenna radiation body, described slave antenna radiation body is the lid of one end open, the openend of described slave antenna radiation body is connected by the upper end of dielectric with described housing, and described housing, described main antenna radiation body and described slave antenna radiation body constitute the shell of whole mobile phone terminal; Described slave antenna is diversity antenna, and described slave antenna realizes the signal launching and receiving with described main antenna identical function, or described slave antenna realizes the signal launching and receiving with described main antenna difference in functionality as multiplex antenna.

In some embodiments, described slave antenna part also comprises the second feed part, inductive part and grounded part, described inductive part, described grounded part and described second feed part are all positioned on the upper surface of described housing and described slave antenna radiation body junction, and described inductive part, described grounded part and described second feed part are all connected described housing and described slave antenna radiation body.

In some embodiments, described first circuit part is provided with inductance or inductance capacitance components and parts, described inductance or inductance capacitance components and parts connect described main antenna radiation body and described housing.

In some embodiments, the junction of described main antenna and described housing is provided with second circuit part contact, described second circuit part contact connects described housing and described main antenna, described second circuit part contact is positioned at the junction of described main antenna radiation body and described housing and is positioned on same end face with described feed part, and described second circuit part contact is connected with described second circuit part.

In some embodiments, described second circuit part comprises:

Second importation, one end is connected with described second circuit part contact;

Second switch, one end is connected with the other end of described second importation, and described second switch ground connection;

Second Data Control line, one end is connected with described second switch, and the other end of described second Data Control line is connected with a mobile terminal signal, and described mobile terminal signal controls the break-make of described second switch.

In some embodiments, described second circuit part also comprises output, and one end of described output is connected with the other end of described second switch, the other end ground connection of described output.

In some embodiments, one end of described second switch directly or be connected with described second importation indirectly by inductance, the other end of described second switch directly or indirectly by inductance ground connection.

In some embodiments, described first circuit part comprises:

First importation, one end connects described housing and described main antenna radiation body by one first circuit part contact;

Multichannel inductance, one end is connected with the other end of the first importation;

First switch, one end is connected with the other end of described multichannel inductance, and described first switch ground connection;

First Data Control line, one end is connected with the other end of described first switch, and the other end of described first Data Control line is connected with a mobile terminal signal, and described mobile terminal signal controls the break-make of described first switch.

In some embodiments, one end of described first switch directly or be connected with described first importation indirectly by inductance, the other end of described first switch directly or indirectly by inductance ground connection.

In some embodiments, described main antenna inside is provided with the mobile phone component such as USB, loud speaker.

In some embodiments, described dielectric adopts Shooting Technique to be connected with described antenna part with described housing.

In some embodiments, the material of described housing is metal or alloy.

In some embodiments, the distance between described antenna part and housing is 0.5mm-2mm.

In some embodiments, described dielectric is closed hoop.

The present invention, owing to adopting above technical scheme, makes it compared with prior art:

1) the invention solves the one-body molded design of metal shell and its antenna part, and adopt polyhedral constructional appearance, there is attractive in appearance, practical feature.

2) insertion switch of the present invention and device are as inductance, achieve two working frequency range of mobile phone terminal antenna, can meet the communication of GSM850, GSM900, DCS, PCS, UMTS, LTE700, LTE1500 multiband, and can adjusted design antenna more easily.

3) the invention provides the several functions design of slave antenna, facilitate in practical application and optionally realize.

Accompanying drawing explanation

By reference to the accompanying drawings, by hereafter state detailed description, more clearly can understand above-mentioned and other feature and advantage of the present invention, wherein:

Fig. 1 is the front three-dimensional structure schematic diagram of the embodiment of the present invention one;

Fig. 2 is the reverse side three-dimensional structure schematic diagram of the embodiment of the present invention one;

Fig. 3 is the end view of the embodiment of the present invention one;

Fig. 4 is the upward view of the embodiment of the present invention one;

Fig. 5 is the left and right side reduced graph of the embodiment of the present invention one;

Fig. 6 is the top and bottom reduced graph of the embodiment of the present invention one;

Fig. 7 is the explosive view of the embodiment of the present invention one;

Fig. 8 is the layout of the main antenna of the embodiment of the present invention one;

Fig. 9 is the structural representation of the main antenna of the embodiment of the present invention one;

Figure 10 is the schematic cross-section of the main antenna of the embodiment of the present invention one;

Figure 11 is the structural representation of the second circuit part of the embodiment of the present invention one;

Figure 12 is the return loss plot of the main antenna of the embodiment of the present invention one;

Figure 13 is the structural representation of the slave antenna of the embodiment of the present invention one;

Figure 14 is the schematic cross-section of the slave antenna of the embodiment of the present invention one;

Figure 15 is the return loss plot of the slave antenna of the embodiment of the present invention one;

Figure 16 is the structural representation of the main antenna of the embodiment of the present invention two;

Figure 17 is the first circuit part structural representation of the embodiment of the present invention three;

Figure 18 is the structural representation of the main antenna of the embodiment of the present invention four;

Figure 19 is the structural representation of the first circuit part of the embodiment of the present invention four;

Figure 20 is the return loss plot of the main antenna of the embodiment of the present invention three, four.

Embodiment

See the accompanying drawing that the embodiment of the present invention is shown, hereafter in more detail the present invention will be described.But the present invention can realize in many different forms, and should not be construed as by the restriction in the embodiment of this proposition.On the contrary, it is abundant and complete open in order to reach for proposing these embodiments, and makes those skilled in the art understand scope of the present invention completely.In these accompanying drawings, for clarity sake, may be exaggerated size and the relative size in layer and region.

Embodiment one

With reference to figure 1-12, a kind of mobile phone terminal antenna provided by the invention, is arranged at a transmitting and receiving mobile phone terminal 10 carrying out wireless signal.This mobile phone terminal antenna comprises housing and antenna part, and on the upper end that antenna part is arranged at housing by dielectric and/or lower end, wherein antenna part is the lid of one end open, and housing and antenna part constitute the shell of whole mobile phone terminal.

In the present embodiment, housing is the metal shell 12 with electric conductivity, alloy certainly also can be adopted as the making material of housing, such as stainless steel, magnadure etc., makes the profile obtained as Fig. 3-Fig. 4 through milling, forging and stamping etc.Metal shell 12 has polyhedron-shaped, comprise left and right side, bottom surface and front removing and display screen area is set, the positive and negative of metal shell 12 leaves the opening that some devices in mobile phone terminal are set, such as shown in Fig. 1-2, the front of metal shell 12 is also left except leaving the position of display screen 11 position of main screen button 13, loud speaker 14, front-facing camera 15 etc., the reverse side of metal shell 12 leaves the position of post-positioned pick-up head 18 grade, the setting position of certain each parts can adjust as the case may be, is not restricted herein.

In the present embodiment, antenna part comprises main antenna 20 and slave antenna 30, main antenna 20 and the lid-like of slave antenna 30 all in one end open, the opening part of main antenna 20 is connected with the lower end of metal shell 12 by dielectric 17, the opening part of slave antenna 30 is connected with the upper end of metal shell 12 by dielectric 16, main antenna 20 is connected with metal shell 12 for receiving and wireless signal emission, slave antenna 30 is connected with metal shell 12 and receives wireless signal or WIFI/GPS antenna for auxiliary main antenna, and for this frequency range wireless signal transmission and reception; Dielectric 17 and dielectric 16 are for splitting metal shell 12 and antenna part, and divided distance is about 0.5mm to 2mm.Concrete, dielectric 16 and dielectric 17 can in closed ring-types, also can in the form of sheets or rectangular-shaped etc.; Dielectric 16 and dielectric 17 can be the media such as high molecular polymer, and it adopts the techniques such as injection moulding and antenna part to be connected to form reduced graph as seen in figs. 5-6.

It is the reduced graph of the longitudinal cross-section of the whole shell of the mobile phone terminal that antenna part and metal shell 12 form with reference to figure 5, its longitudinal cross-section is octagon, symmetrical respectively up and down, specifically comprise paired limit 101, limit 102, limit 103 and limit 104, limit 102 is longer than on limit 101, and limit 103 is longer than on limit 102.Limit 101 and the angle 105 on limit 102, limit 104 are greater than the angle 106 on limit 103 and limit 102, limit 104, and angle 106 is greater than 90 degree, is obtuse angle.In order to avoid polygon adjacent edge intersects too sharp keen, polygon adjacent edge all does fillet process, and radius of corner is much smaller than the most minor face of polygon.It is the reduced graph of the lateral cross section of the whole shell of the mobile phone terminal that antenna part and metal shell 12 form with reference to figure 6, its lateral cross section is also in being octagon, all symmetrical up and down, specifically comprise paired limit 201, limit 202, limit 203, limit 204, wherein limit 201 is the longest, and the length on limit 203 is more than or equal to the length on limit 202.Limit 201 and the angle on limit 202, limit 204 are more than or equal to the angle 205 on limit 203 and limit 202, limit 204, and angle 205 is obtuse angle.Shape polyhedral structure as seen in figs. 5-6 of being combined into of antenna part and metal shell 12, being to make it have effect attractive in appearance, certainly also can being made into other shapes, not being restricted herein in the present embodiment.

When the present embodiment applies in concrete mobile phone terminal time, concrete reference 7, the upper surface of metal shell 12 is arranged display screen 11, some conventional devices of the mobile phone terminal such as pcb board 18, battery 19 inside in the space that metal shell 12, display screen 11 and antenna part are formed, can be placed.

In the present embodiment, with reference to figure 8-10, main antenna 20 is arranged at the lower end of metal shell 12, and main antenna 20 comprises main antenna radiation body 22, first feed part 21, first circuit part and second circuit part 50.Concrete, the lid of main antenna radiation body 22 in one end open, the opening part of main antenna radiation body 22 is connected to the lower end of metal shell 12 by dielectric 17; First feed part 21 is arranged at metal shell 12 with on the upper surface of main antenna radiation body 22 junction, and the first feed part 21 is all connected with metal shell 12 with main antenna radiation body 22, and the first feed part 21 receives feed signal; First circuit part is connected to metal shell 12 with on the lower surface of main antenna radiation body 22 junction.First circuit part adopts inductance 27 in the present embodiment, inductance 27 is arranged at metal shell 12 with on the lower surface of main antenna radiation body 22 junction, and inductance 27 connects main antenna radiation body 22 and metal shell 12, inductance 27 is for regulating the frequency of whole mobile phone terminal antenna.Certain inductance 27 can be replaced by the device or circuit with equivalent identical function, as the folding line, plane inductive coil, helix etc. of the microstrip design of controllable impedance, antenna tuner, equivalent inductance, does not limit herein.

In the present embodiment, main antenna 20 also comprises second circuit part 50, as shown in figure 11.Main antenna radiation body 22 is provided with second circuit part contact 26 with the junction of metal shell 12, and second circuit part contact 26 is connected with main antenna radiation body 22 with metal shell 12; In addition, second circuit part contact 26 is positioned at the junction of main antenna radiation body 22 and metal shell 12 and is positioned on the same side with the first feed part 21, and inductance 27 is positioned on the heteropleural in the middle of second circuit part contact 26 and feed part 21, as shown in Figure 9.

In the present embodiment, second circuit part 50 is positioned on the pcb board 18 of mobile phone terminal 10, has the function realizing radio-frequency (RF) signal switch.Concrete, second switch 51, second importation 52 that second circuit part 50 comprises, output 53 and second one end, Data Control line 54, second importation 52 are connected with second circuit part contact 26, and the other end is connected with second switch 51.Output 53 one end is connected with second switch 51, and the other end connects ground, and ground refers to the reference point of signal, in the present embodiment as pcb board 18 or metal shell 12; In the present embodiment, the second importation 52 and output 53 can seal in the components and parts such as inductance or electric capacity simultaneously, further Optimization Work frequency and bandwidth.Certainly, second circuit part 50 also can not arrange separately output 53, can being directly connected to ground, as being directly connected on pcb board, not being restricted herein in the inside of second switch 51.Second Data Control line 54 one end is connected with second switch 51, and the other end is connected with the mobile terminal signal on mobile phone terminal, and this mobile terminal signal controls the conducting of second switch 51 and disconnection, thus controls second circuit part contact 26 whether ground connection.

In the present embodiment, conducting and the disconnection of second switch 51 control the working frequency range of main antenna 20, when switch is in off-state, circuit part tie point 26 disconnects with ground, main antenna is operated in the first frequency range, namely frequency range is the frequency range of 700MHz-960MHz, and its return loss is as shown in the A in Figure 12.When second switch 51 is in conducting state, circuit part tie point 26 is connected to ground, and main antenna is operated in the second frequency range, and namely frequency range is the frequency range of 1400MHz-2200MHz, and its return loss is as shown in the B in Figure 12; Can meet GSM850, GSM900, DCS, PCS, UMTS, LTE700, LTE1500 multiband communicate by showing in Figure 12 that the first frequency range and the second frequency range can meet, the introducing of switch can adjusted design antenna more easily.

Wherein, when the present invention is operated in the first frequency range time, the resonance frequency of the first frequency range is regulated with the size of the Distance geometry inductance value at metal shell 12 edge by adjustment inductance 27, and inductance value is larger, and operating frequency is lower; When the present invention is operated in the second frequency range time, the resonance frequency of the second frequency range carries out suitable adjustment by regulating the distance between second circuit part tie point 26 and the first feed part 21.The distance at the edge of adjustment first feed part 21 and metal shell 12 is needed when need regulate the frequency of the first frequency range and the second frequency range simultaneously.First feed part 21 the closer to the edge of metal shell 12, by the resonance frequency of reduction by first frequency range and the second frequency range.

In the present embodiment, the inside of main antenna 20 is hollow form, time on concrete utilization to mobile phone terminal, can carry out the setting of some related devices, such as left and right loud speaker 43, USB 23 etc., as shown in figures 8-9 in main antenna 20 inside.Left speaker is positioned at the top of feed part, right loud speaker is positioned at the below of second circuit part contact 26, the sender 24 of left and right loud speaker 43 extends to the bottom of main antenna 20, and USB 23 is arranged at the top of inductance 27, thus the whole mobile phone terminal indoor design made is compacter.

With reference to figure 13-14, slave antenna 30 comprises slave antenna radiant body 32, second feed part 31, inductive part 33 and grounded part 34.The lid of slave antenna radiant body 32 in one section of opening, the opening of slave antenna radiant body 32 is connected to the upper end of metal shell 12 by dielectric 16.Slave antenna radiant body 32 can be provided with receiver opening etc.Second feed part 31, inductive part 33 and grounded part 34 are all arranged at slave antenna radiant body 32 with on the upper surface of metal shell 12 junction, and inductive part 33 than grounded part 34 from the second feed part 31 more close to.

In the present embodiment, slave antenna 30 is diversity antenna, and diversity antenna does not transmit usually, receives wireless signal for auxiliary main antenna 20, the function of Received signal strength performance under improving message transmission rate simultaneously or strengthening adverse circumstances; The form of slave antenna 30 is optional, such as can LET(LongTermEvolution be set) diversity antenna, GPS (GlobalpositionSystem) antenna and WIFI (WirelessFidelity, IEEEstandard802.11) antenna etc., it can carry out selection design according to the form of main antenna 20, if slave antenna 30 is set to the diversity antenna with main antenna with identical function, can refer to the design of main antenna, repeat no more herein; When mobile phone terminal adopts multiple-input and multiple-output MIMO(multipleinputmultipleoutput) system time, slave antenna 30 can realize equally with main antenna 20 transmitting and receiving signal, and main antenna 20 and slave antenna 30 need to make certain balance according to isolation.In the present embodiment, slave antenna 30 works in GPS/WIFI frequency range simultaneously, slave antenna 30 is for the transmitting and receiving of the signal of GPS/WIFI frequency range, Figure 15 is the return loss plot of slave antenna 30 when transmitting and receiving for GPS/WIFI frequency band signals, frequency bandwidth covers GPS frequency range 1570-1580MHz and WIFI frequency range 2.4-2.48GHz, meets frequency and the bandwidth requirement of GPS/WIFI as seen.

Embodiment two

With reference to Figure 16, be one conversion embodiment of the present invention, the present embodiment is the amendment made on the basis of embodiment one.Concrete, the first circuit part directly adopts a ground connection branch 28 to realize in the present embodiment, and ground connection branch 28 is positioned at metal shell 12 with on the lower surface of main antenna radiation body 22 junction, the same connection metal housing 12 of ground connection branch 28 and main antenna 20.In the present embodiment, the adjustment of the frequency of the first frequency range that main antenna 20 works is realized by ground connection branch 28, the position of ground connection branch 28 closer to the first feed part 21, regulates the frequency of the first frequency range compared with the position of the inductance 27 in embodiment one by the distance between regulated ground branch 28 and the first feed part 21.Except above-mentioned improvement part, the remainder of the present embodiment is identical with embodiment one, repeats no more herein.

Embodiment three

With reference to Figure 17 and Figure 20, be one conversion embodiment of the present invention, the present embodiment is the amendment made on the basis of embodiment one, makes main antenna 20 can realize two low frequency frequency ranges.Particularly, the first circuit part adopts switching circuit to realize in the present embodiment.The first switch 61, first importation 62, first multichannel inductance 67, second multichannel inductance 68 and the first Data Control line 64 that first circuit part 60 comprises; One end connection metal housing 12 of the first importation 62 and main antenna radiation body 22, the other end is connected with 68 with multichannel inductance 67; First switch 61 has multi input port, and multi input port connects the first multichannel inductance 67 and the second multichannel inductance 68 respectively; First switch 61 can have multi output end, and its output is directly connected to ground, and ground refers to the reference point of signal, in the present embodiment as pcb board 18 or metal shell 12; First Data Control line 64 one end is connected with the first switch 61, and the other end is connected with the mobile terminal signal on mobile phone terminal, and this mobile terminal signal controls the break-make of the first switch 61, thus controls the first circuit part whether ground connection.The frame mode of above main antenna, its return loss plot as shown in figure 20.Concrete, when second switch 51 disconnects, return loss when the first switch 61 and the first multichannel inductance 67 conducting is as shown in curve E; When second switch 51 disconnects, return loss when the first switch 61 and the second multichannel inductance 68 conducting is as shown in curve F; When second switch 51 closes, when the first switch 61 and the first multichannel inductance 67 or second any one conducting of multichannel inductance 68, return loss is as shown in curve G, and the frame mode of the present embodiment can realize two low frequency frequency ranges as can be seen here.Except above-mentioned improvement part, the remainder of the present embodiment is identical with embodiment one, repeats no more herein.

Embodiment four

With reference to figure 18-20, be one conversion embodiment of the present invention, the present embodiment is the amendment made on the basis of embodiment three, adopts multiple individual switch circuits can realize improving the isolating problem in multiple-input and multiple-output switching circuit.Particularly, first circuit part adopts two physically independent switching circuits to realize in the present embodiment, first circuit part comprises two identical circuit parts 70, and circuit part 70 comprises switch 71, importation 72, inductive part 77 and Data Control line 74, one end of importation 72 is connected with one end of switch 71, the other end of switch 71 is by inductive part 77 ground connection, and ground refers to the reference point of signal, in the present embodiment as pcb board 18 or metal shell 12; Data Control line 74 one end is connected with switch 71, and its other end is connected with the mobile terminal signal on mobile phone terminal, the break-make of this mobile terminal signal control switch 71.Two identical circuit parts 70 are all connected respectively on circuit part tie point 27-1 and circuit part tie point 27-2 by the other end of importation 72.The main antenna structure mode of employing described in embodiment four also can obtain return loss plot as shown in figure 20, concrete, when second switch 51 disconnects, return loss when being connected to the switch conduction in the circuit part on circuit part tie point 27-1 is as shown in curve E; When second switch 51 disconnects, return loss when being connected to the switch conduction in the circuit part on circuit part tie point 27-2 is as shown in curve F; When second switch 51 closes, when being connected to the switch in the circuit part on circuit part tie point 27-2 or being connected to any one conducting of switch in the circuit part on circuit part tie point 27-2, return loss is as shown in curve G.Except above-mentioned improvement part, the remainder of the present embodiment is identical with embodiment three, repeats no more herein.

In sum, the invention provides a kind of mobile phone terminal antenna, the main antenna comprising metal shell and be attached thereto by dielectric and slave antenna, main antenna is connected for receiving and wireless signal emission with metal shell, slave antenna is diversity antenna, wireless signal or WIFI/GPS antenna is received, for this frequency range wireless signal transmission and reception for auxiliary main antenna.Main antenna is arranged at the lower end of metal shell, comprise aerial radiation body, feed part, inductance and circuit part, there is groove in aerial radiation body and housing, antenna body is connected with housing with circuit part by inductance, feed part and inductance are arranged on the upper surface of aerial radiation body and metal shell junction, circuit part is arranged on the upper surface of aerial radiation body and metal shell junction, circuit part, by its whether ground connection of the inner switch control rule arranged, realizes different working frequency range.Present invention achieves the one-body molded design by techniques such as injection mouldings of metal shell and antenna part, in addition insertion switch and inductance, achieve the operating state of two frequency ranges, the communication of GSM850, GSM900, DCS, PCS, UMTS, LTE700, LTE1500 multiband can be met, and can adjusted design antenna easily.

Those skilled in the art should be understood that the present invention can realize with other concrete forms many and not depart from the spirit or scope of the present invention.Although also have been described embodiments of the invention, the present invention should be understood and should not be restricted to these embodiments, within the spirit and scope of the invention that those skilled in the art can define as appended claims, make change and amendment.

Claims (15)

1. a mobile phone terminal antenna, be arranged at for transmitting and receiving wireless signal in a mobile phone terminal, it is characterized in that, described mobile phone terminal antenna comprises:
Housing, has electric conductivity;
Antenna part, comprises main antenna, and described main antenna comprises main antenna radiation body, and described main antenna radiation body is the lid of one end open, and the openend of described main antenna radiation body is connected by the lower end of dielectric with described housing;
Wherein, described main antenna part also comprises the first feed part, the first circuit part and second circuit part, described first feed part and described second circuit part are connected on the upper surface of the junction of described main antenna radiation body and described housing, described first circuit part is connected on the lower surface of the junction of described main antenna radiation body and described housing, and described feed part, the first circuit part and second circuit part are all connected described housing and described main antenna radiation body;
Described housing becomes the shell of mobile phone terminal with described this body by integral forming of main antenna radiation design team.
2. mobile phone terminal antenna according to claim 1, it is characterized in that, described antenna part also comprises slave antenna, described slave antenna comprises slave antenna radiation body, described slave antenna radiation body is the lid of one end open, the openend of described slave antenna radiation body is connected by the upper end of dielectric with described housing, and described housing, described main antenna radiation body and described slave antenna radiation body constitute the shell of whole mobile phone terminal; Described slave antenna is diversity antenna, and described slave antenna realizes the signal launching and receiving with described main antenna identical function, or described slave antenna realizes the signal launching and receiving with described main antenna difference in functionality as multiplex antenna.
3. mobile phone terminal antenna according to claim 2, it is characterized in that, described slave antenna part also comprises the second feed part, inductive part and grounded part, described inductive part, described grounded part and described second feed part are all positioned on the upper surface of described housing and described slave antenna radiation body junction, and described inductive part, described grounded part and described second feed part are all connected described housing and described slave antenna radiation body.
4. mobile phone terminal antenna according to claim 1 and 2, is characterized in that, described first circuit part is provided with inductance or inductance capacitance components and parts, and described inductance or inductance capacitance components and parts connect described main antenna radiation body and described housing.
5. mobile phone terminal antenna according to claim 1 and 2, it is characterized in that, the junction of described main antenna and described housing is provided with second circuit part contact, described second circuit part contact connects described housing and described main antenna, described second circuit part contact is positioned at the junction of described main antenna radiation body and described housing and is positioned on same end face with described feed part, and described second circuit part contact is connected with described second circuit part.
6. mobile phone terminal antenna according to claim 5, is characterized in that, described second circuit part comprises:
Second importation, one end is connected with described second circuit part contact;
Second switch, one end is connected with the other end of described second importation, and described second switch ground connection;
Second Data Control line, one end is connected with described second switch, and the other end of described second Data Control line is connected with a mobile terminal signal, and described mobile terminal signal controls the break-make of described second switch.
7. mobile phone terminal antenna according to claim 6, is characterized in that, described second circuit part also comprises output, and one end of described output is connected with the other end of described second switch, the other end ground connection of described output.
8. mobile phone terminal antenna according to claim 6, is characterized in that, one end of described second switch directly or be connected with described second importation indirectly by inductance, the other end of described second switch directly or indirectly by inductance ground connection.
9. mobile phone terminal antenna according to claim 1 and 2, is characterized in that, described first circuit part comprises:
First importation, one end connects described housing and described main antenna radiation body by one first circuit part contact;
Multichannel inductance, one end is connected with the other end of the first importation;
First switch, one end is connected with the other end of described multichannel inductance, and described first switch ground connection;
First Data Control line, one end is connected with the other end of described first switch, and the other end of described first Data Control line is connected with a mobile terminal signal, and described mobile terminal signal controls the break-make of described first switch.
10. mobile phone terminal antenna according to claim 9, is characterized in that, one end of described first switch is direct or be connected with described first importation indirectly by inductance, the ground connection of the other end of described first switch.
11. mobile phone terminal antenna according to claim 1, is characterized in that, described main antenna inside is provided with the mobile phone component such as USB, loud speaker.
12. mobile phone terminal antenna according to claim 1, is characterized in that, described dielectric adopts Shooting Technique to be connected with described antenna part with described housing.
13. mobile phone terminal antenna according to claim 1, is characterized in that, the material of described housing is metal or alloy.
14. mobile phone terminal antenna according to claim 1, is characterized in that, the distance between described antenna part and housing is 0.5mm-2mm.
15. mobile phone terminal antenna according to claim 1 and 2, is characterized in that, described dielectric is closed hoop.
CN201310321813.6A 2013-07-29 2013-07-29 A kind of mobile phone terminal antenna CN103390796B (en)

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