CN105071024A - Antenna system of mobile terminal - Google Patents
Antenna system of mobile terminal Download PDFInfo
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- CN105071024A CN105071024A CN201510535470.2A CN201510535470A CN105071024A CN 105071024 A CN105071024 A CN 105071024A CN 201510535470 A CN201510535470 A CN 201510535470A CN 105071024 A CN105071024 A CN 105071024A
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- mobile terminal
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- antenna system
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- fpc cabling
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Abstract
The invention relates to an antenna system of a mobile terminal. The antenna system comprises a button FPC wire, a signal module, an isolation DC module and an antenna matching module which are successively connected. The FPC wire is used for receiving or emitting electromagnetic waves, the signal module is used for modulating high-frequency AC signals generated by the FPC wire or providing demodulated high-frequency AC signals for the FPC wire, the isolation DC module is used for isolating DC signals, and the antenna matching module is used for adjusting the work frequency range of the antenna system and realizing impedance match with the antenna system. The antenna system realizes an antenna function of a frequency range needed by the mobile terminal by use of the button FPC wire of the mobile terminal, reduces internal space needed for antenna design of the mobile terminal, provides a feasible mode for further miniaturization and thinning of the mobile terminal, and at the same time, also provides a new approach for multi-antenna design of the mobile terminal.
Description
Technical field
The present invention relates to radio communication technology field, particularly relate to a kind of antenna system of mobile terminal.
Background technology
Mobile terminal is a kind of important radio communication equipment, the antenna of mobile terminal is then the necessary condition that mobile terminal realizes radio communication, it carry the critical function that mobile terminal sends signal and Received signal strength, is also the important factor in order of communication of mobile terminal quality.Under normal circumstances, when antenna is in open environment, it transmits higher with the efficiency of Received signal strength, and the antenna of current most of mobile terminal all designs the inside at mobile terminal, thus must for it reserves enough large space to ensure the communication quality of mobile terminal in mobile terminal when carrying out Antenna Design, but at present along with the development of the communication technology and manufacturing technology, function achieved by mobile terminal is tending towards variation, structure is tending towards complicated, size is also tending towards lightening simultaneously, cause the inner space that can be used in Antenna Design in mobile terminal more and more less, this is the antenna arrangement of mobile terminal, the design of the aspect such as antenna amount and antenna performance brings many difficulties.
Summary of the invention
Based on this, be necessary can to take up room problem that is little, difficult design for mobile terminal antenna, a kind of antenna system of mobile terminal is provided.
A kind of antenna system of mobile terminal, comprise the button FPC cabling, signaling module, stopping direct current module and the antenna match module that connect successively, described FPC cabling is used for receiving or emitting electromagnetic wave, described signaling module is for the high frequency ac signal modulating described FPC cabling and produce or provide the high frequency ac signal of demodulation for described FPC cabling, described stopping direct current module is used for excluding DC current signal, and described antenna match module is for regulating the working frequency range of described antenna system and realizing the impedance matching of described antenna system.
The antenna system of above-mentioned mobile terminal is in conjunction with the button FPC cabling of mobile terminal, DC isolating tech and antenna match treatment technology, the button FPC cabling of mobile terminal is utilized to achieve the antenna function of frequency range needed for mobile terminal, save mobile terminal for the inner space needed for Antenna Design, a kind of feasible mode is provided, simultaneously also for the multiple antenna design of mobile terminal provides new thinking for mobile terminal is further miniaturized, lightening.
Accompanying drawing explanation
Fig. 1 is the structural representation of one of them embodiment of antenna system of mobile terminal of the present invention;
Fig. 2 is the antenna system configuration schematic diagram of the mobile terminal utilizing key FPC cabling;
Fig. 3 is the circuit diagram of stopping direct current module.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, technical scheme of the present invention is described in detail.
Wherein in an embodiment, shown in Figure 1, the antenna system of mobile terminal comprises the button FPC cabling 100, signaling module 200, stopping direct current module 300 and the antenna match module 400 that connect successively, wherein,
FPC cabling 100 is for receiving or emitting electromagnetic wave;
Signaling module 200 is for the high frequency ac signal modulating described FPC cabling 100 and produce or provide the high frequency ac signal of demodulation for FPC cabling 100;
Stopping direct current module 300 is for excluding DC current signal;
Antenna match module 400 is for regulating the working frequency range of antenna system and realizing the impedance matching of antenna system.
In radio communication technology field, flexible printed circuit board (FlesiblePrintedCircuit, FPC) be often referred to by the circuit board of the plastic cement counterdie of softness, Copper Foil and adhesive glue pressing, be also referred to as flexible circuit board, Flexible Printed Circuit or flex circuit application (referred to as soft board or FPC), have that quality is light, thickness is thin, the good and distribution density high of bending property.In the present embodiment, mainly utilize the button FPC cabling (as copper cash or Copper Foil) of mobile terminal as transmitting or receive electromagnetic antenna terminal, binding signal modulating/demodulating technology, stopping direct current treatment technology and antenna matching technique realize the antenna function of mobile terminal.Particularly, electromagnetic wave is received for the button FPC cabling 100 of mobile terminal as antenna, according to electromagnetic induction principle, when the frequency of FPC cabling 100 is identical with the electromagnetic frequency received, now FPC cabling 100 and electromagnetic wave generation electric resonance, the high-frequency current signal with wave frequency and amplitude variations will be produced in FPC cabling 100, this high frequency ac signal exports stopping direct current module 300 to after signaling module 200 is modulated, because stopping direct current module 300 can by handing over current signal frequently, therefore the high frequency ac signal after modulation exports antenna match module 400 to, antenna match module 400 loads according to the high frequency ac signal after modulation and corresponding capacitive, perception loads, realize the matches impedances of FPC cabling 100 as input impedance during antenna terminal and feeder line, thus improve transmitting power or the received power of FPC cabling 100, simultaneously antenna match module 400 can regulate the working frequency range of the antenna system of mobile terminal, to adapt to the demand of the different antennae working frequency range of different mobile terminal.In the present embodiment, in conjunction with the button FPC cabling of mobile terminal, DC isolating tech and antenna match treatment technology, the button FPC cabling of mobile terminal is utilized to achieve the antenna function of frequency range needed for mobile terminal, save mobile terminal for the inner space needed for Antenna Design, a kind of feasible mode is provided, simultaneously also for the multiple antenna design of mobile terminal provides new thinking for mobile terminal is further miniaturized, lightening.
As a kind of concrete execution mode, the button of mobile terminal is key or volume key, and namely the button FPC cabling of mobile terminal is key FPC cabling or the volume key FPC cabling of mobile terminal.Below the key FPC cabling for mobile terminal is described, as shown in Figure 2, for utilizing the antenna system configuration schematic diagram of the mobile terminal of key FPC cabling, wherein key FPC cabling comprises two FPC cablings (FPC cabling 1 and FPC cabling 2) and two pads (pad A and pad B), wherein, pad B ground connection on FPC cabling 2, the pad A on FPC cabling 1 is earth-free.FPC cabling 1 contacts under the effect of button K (being equivalent to starting key here) with FPC cabling 2, the corresponding power up function of mobile terminal can be realized, namely when push button K time, FPC cabling 1 contacts with FPC cabling 2, for mobile terminal-opening provides low level signal; After unclamping button K, key FPC cabling in the raw time, FPC cabling 1 and FPC cabling 2 disconnect.As shown in the above, key FPC cabling only provides corresponding signal when mobile terminal-opening, and after mobile terminal-opening in the normal process run, key FPC cabling is then in idle state.With the key FPC cabling of mobile terminal similarly, volume key FPC cabling is only in running order when carrying out volume adjusting, under the situation of not carrying out volume adjusting, be then in idle state.Therefore present embodiment utilizes the key FPC cabling of mobile terminal or volume key FPC cabling to realize the function of antenna, take full advantage of the element in mobile terminal, without the need to again for mobile terminal is provided for other FPC cabling or metallic plates etc. of realizing antenna function, thus save the inner space of mobile terminal, provide possibility for mobile terminal is further miniaturized, lightening.
As a kind of concrete execution mode, as shown in Figure 2, signaling module connects two pads (i.e. pad A and pad B) of key FPC cabling simultaneously, now FPC cabling 1 and FPC cabling 2 are jointly as the antenna terminal in antenna system, they can receive or launch more multiband, the more electromagnetic wave of wide frequency ranges, therefore the mobile terminal that required frequency range is larger is particularly useful for, simultaneously because the low level information number being used for power up function produced when FPC cabling 1 can contact with FPC cabling 2 by stopping direct current module excludes, thus the interference of DC current signal to antenna match module is avoided, the reliability and stability of antenna system are ensured.
As a kind of concrete execution mode, signaling module connects any one pad in two pads of key FPC cabling.In the present embodiment, signaling module is only connected with the pad of a key FPC cabling, be equivalent to only to utilize a FPC cabling in key FPC cabling as in antenna system for receiving the antenna terminal with emitting electromagnetic wave, be applicable to the mobile terminal not high to band limits demand, simultaneously for there is the antenna system of comparatively simple antenna terminal, more be conducive to the impedance matching that antenna match module realizes antenna system, avoid the structural design of complicated capacitive loading, perception loading etc.In the present embodiment, no matter adopt which kind of FPC cabling as receiving or the antenna terminal of emitting electromagnetic wave, the antenna function of frequency range needed for mobile terminal can both be realized, the object of saving mobile terminal inner space further can be reached simultaneously, stopping direct current module also can avoid DC current signal to the interference of antenna match module, ensures the reliability and stability of antenna system.Further, two of the key FPC cabling distances between pad and corresponding button can be regulated according to the operating frequency of antenna system, the suitable position etc. of pad on FPC cabling of ground connection in the suitable length of key FPC cabling or key FPC cabling is such as set, by suitable length or position, the closed loop flow path changing electric current in circuit is set and the operating frequency obtained needed for antenna system, therefore mobile terminal FPC cabling can not only realize antenna function, and the different operating frequency range of the antenna system needed for mobile terminal can be met.
In above several execution mode, for the concrete connected mode of signaling module and key FPC cabling, understand the various feasible mode realizing the antenna system of mobile terminal proposed by the invention in detail, for volume key FPC cabling, there is the structure identical with key FPC cabling, when receive in antenna system using volume key FPC cabling or the antenna terminal of emitting electromagnetic wave time, signaling module is identical with the concrete connected mode of volume key FPC cabling, operation principle is identical with utilizing the operation principle of key FPC cabling, thus reached effect is identical, so place repeats no more.
As a kind of concrete execution mode, the function of stopping direct current module can be realized jointly by electric capacity C, resistance R and operational amplifier, as shown in Figure 3, for the circuit diagram of stopping direct current module, one end connection signal module of electric capacity C, the other end of electric capacity C then distinguishes the other end ground connection of one end of contact resistance R and the in-phase input end resistance R of operational amplifier, and the inverting input of operational amplifier is connected with output, and the output of operational amplifier connects antenna match module.In stopping direct current module, electric capacity C and resistance R forms a high-pass filtering circuit jointly, flip-flop in electric current and the lower alternating component of frequency can exclude by this high-pass filtering circuit in the lump, thus avoid key to close or volume key closes time the DC current signal that produces in key FPC or volume key FPC to the interference of antenna match module, and antenna match module is exported to after operational amplifier amplifies further to high frequency ac signal, process for antenna match module.
As a kind of concrete execution mode, carry out the connected mode and parameter etc. of each electric capacity and inductance in designing antenna matching module according to the impedance matching of antenna system and working frequency range.In the practical work process of antenna system, for making feeder line minimum for the decay of signal, improve received power or the transmitting power of feed antenna system, need realize the impedance matching between antenna and feeder line, therefore impedance matching is that mobile terminal obtains one of necessary condition of good antenna effects.Antenna input signal voltage is called the input impedance of antenna with the ratio of signal code, input impedance has the resistive component of real part and the reactive component of imaginary part, and the existence of reactive component can reduce antenna from the extraction of feeder line to signal power, be unfavorable for the received power or the transmitting power that improve antenna, therefore, reactive component must be made to be zero as far as possible, the input impedance of antenna namely should be made as far as possible to be pure resistance.In fact, for any antenna system, the method can debugged by antenna impedance, in the operating frequency range of demand, is adjusted to zero or close to zero, thus makes antenna can be in good impedance matching with feeder line by the imaginary part of the input impedance of antenna.The method of antenna impedance debugging can utilize the perception of the loading of the capacitive of electric capacity in antenna match module and inductance to load the circuit structure of approximate whole antenna system, according to required antenna system working frequency range, by the design such as structure, parameter to electric capacity and inductance in antenna match module, while the impedance matching realizing antenna system, meet the requirement of working frequency range.
As a kind of concrete execution mode, key or the volume key of mobile terminal are prepared by insulating material.When utilizing the key FPC cabling of mobile terminal or volume key FPC cabling to realize the antenna function of frequency range needed for mobile terminal, insulating material is adopted to prepare key or volume key, namely empty avoiding process is carried out, to strengthen the effect of antenna system to key FPC cabling or volume key FPC cabling.Under normal circumstances; the shell of mobile terminal is made up of metal; it is advantageous that for the element of mobile terminal inside, to there is protective effect on the one hand; certain shielding action can be played on the other hand; improve the ability of mobile terminal electromagnetism interference; but for the situation utilizing the key FPC cabling of mobile terminal or volume key FPC cabling as antenna terminal; the shielding of metal shell on key FPC cabling or volume key FPC cabling can affect the magnetic distribution of antenna terminal, makes to launch or receive electromagnetic efficiency all to decline.Therefore, in order to improve the transmitting of antenna system or receive the efficiency of radio wave, need to utilize insulating material to prepare key or volume key, to realize the empty avoiding process to key FPC cabling or volume key FPC cabling relevant position on mobile terminals.Such as, the shell of mobile terminal is some conductive material (as aluminium alloy, stainless steel etc.), when empty avoiding process is carried out to key FPC cabling or volume key FPC cabling, plastic material can be utilized to prepare key or volume key, thus utilize key FPC cabling or volume key FPC cabling to realize the antenna effects of frequency range needed for mobile terminal.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this specification is recorded.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (6)
1. the antenna system of a mobile terminal, it is characterized in that, comprise the button FPC cabling, signaling module, stopping direct current module and the antenna match module that connect successively, described FPC cabling is used for receiving or emitting electromagnetic wave, described signaling module is for the high frequency ac signal modulating described FPC cabling and produce or provide the high frequency ac signal of demodulation for described FPC cabling, described stopping direct current module is used for excluding DC current signal, and described antenna match module is for regulating the working frequency range of described antenna system and realizing the impedance matching of described antenna system.
2. the antenna system of mobile terminal according to claim 1, is characterized in that,
Described button is key or the volume key of mobile terminal.
3. the antenna system of mobile terminal according to claim 2, is characterized in that,
Described signaling module connects two pads of described FPC cabling simultaneously.
4. the antenna system of mobile terminal according to claim 2, is characterized in that,
Described signaling module connects any one pad in two pads of described FPC cabling.
5. the antenna system of the mobile terminal according to claim 3 or 4, is characterized in that,
Described stopping direct current module comprises electric capacity, resistance and operational amplifier, one end of described electric capacity connects described signaling module, the other end of described electric capacity connects one end of described resistance and the in-phase input end of described operational amplifier respectively, the other end ground connection of described resistance, the inverting input of described operational amplifier is connected with output, and the output of described operational amplifier connects described antenna match module.
6. the antenna system of mobile terminal according to claim 2, is characterized in that,
Described key or volume key are prepared by insulating material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711403956.6A CN108054493B (en) | 2015-08-26 | 2015-08-26 | Antenna system of mobile terminal |
| CN201510535470.2A CN105071024B (en) | 2015-08-26 | 2015-08-26 | The antenna system of mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510535470.2A CN105071024B (en) | 2015-08-26 | 2015-08-26 | The antenna system of mobile terminal |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711403956.6A Division CN108054493B (en) | 2015-08-26 | 2015-08-26 | Antenna system of mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105071024A true CN105071024A (en) | 2015-11-18 |
| CN105071024B CN105071024B (en) | 2018-01-19 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510535470.2A Expired - Fee Related CN105071024B (en) | 2015-08-26 | 2015-08-26 | The antenna system of mobile terminal |
| CN201711403956.6A Active CN108054493B (en) | 2015-08-26 | 2015-08-26 | Antenna system of mobile terminal |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711403956.6A Active CN108054493B (en) | 2015-08-26 | 2015-08-26 | Antenna system of mobile terminal |
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| CN (2) | CN105071024B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453020A (en) * | 2016-05-30 | 2017-12-08 | 中国石油化工股份有限公司 | A kind of matching reception device with brill electromagnetic wave reception antenna |
| US11381215B2 (en) | 2018-05-29 | 2022-07-05 | Asustek Computer Inc. | Wireless communication device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114222013A (en) * | 2021-12-08 | 2022-03-22 | 广东明创软件科技有限公司 | Electronic device and control method of electronic device |
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| KR100753951B1 (en) * | 2006-06-27 | 2007-08-31 | 주식회사 아모텍 | Fpcb and portable terminal with the fpcb |
| CN202068404U (en) * | 2011-02-16 | 2011-12-07 | 中兴通讯股份有限公司 | Terminal with radio receiving function |
| CN103178326A (en) * | 2013-03-20 | 2013-06-26 | Tcl通讯（宁波）有限公司 | Antenna and on-off key integrated FPC (flexible circuit board) and mobile terminal |
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| US7639187B2 (en) * | 2006-09-25 | 2009-12-29 | Apple Inc. | Button antenna for handheld devices |
| CN102157286A (en) * | 2010-04-19 | 2011-08-17 | 苹果公司 | Output and input system for electronic apparatus |
| CN202663462U (en) * | 2012-07-26 | 2013-01-09 | 广东欧珀移动通信有限公司 | Metal wiring integrated structure of mobile phone antenna and side keypad |
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2015
- 2015-08-26 CN CN201510535470.2A patent/CN105071024B/en not_active Expired - Fee Related
- 2015-08-26 CN CN201711403956.6A patent/CN108054493B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100753951B1 (en) * | 2006-06-27 | 2007-08-31 | 주식회사 아모텍 | Fpcb and portable terminal with the fpcb |
| CN202068404U (en) * | 2011-02-16 | 2011-12-07 | 中兴通讯股份有限公司 | Terminal with radio receiving function |
| CN103178326A (en) * | 2013-03-20 | 2013-06-26 | Tcl通讯（宁波）有限公司 | Antenna and on-off key integrated FPC (flexible circuit board) and mobile terminal |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107453020A (en) * | 2016-05-30 | 2017-12-08 | 中国石油化工股份有限公司 | A kind of matching reception device with brill electromagnetic wave reception antenna |
| CN107453020B (en) * | 2016-05-30 | 2019-10-29 | 中国石油化工股份有限公司 | A kind of matching reception device with brill electromagnetic wave receiving antenna |
| US11381215B2 (en) | 2018-05-29 | 2022-07-05 | Asustek Computer Inc. | Wireless communication device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105071024B (en) | 2018-01-19 |
| CN108054493A (en) | 2018-05-18 |
| CN108054493B (en) | 2020-01-10 |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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