CN201986014U - Mobile terminal - Google Patents
Mobile terminal Download PDFInfo
- Publication number
- CN201986014U CN201986014U CN201120041995.8U CN201120041995U CN201986014U CN 201986014 U CN201986014 U CN 201986014U CN 201120041995 U CN201120041995 U CN 201120041995U CN 201986014 U CN201986014 U CN 201986014U
- Authority
- CN
- China
- Prior art keywords
- antenna
- chip
- portable terminal
- radio receiver
- electrically connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Support Of Aerials (AREA)
Abstract
The utility model discloses a mobile terminal which comprises an application chip for processing wireless signal so as to realize a terminal function, a radio signal demodulation chip and a multiplexing antenna, wherein the multiplexing antenna is electrically connected with the application chip and the radio signal demodulation chip respectively. In the utility model, a receiving antenna of the application chip is taken as the multiplexing antenna and is used for receiving the radio signal simultaneously, under the condition that the terminal has no space for containing an FM antenna, the design for FM also can be carried out, and the signal receiving effect can reaches the earphone antenna receiving effect. By adopting the mobile terminal, space and cost for designing the FM antenna specially is saved, the problem of unreliable connection between the antenna and the main board of the terminal is solved, and the stability of receiving radio signal is improved.
Description
Technical field
The utility model relates to communication technique field, relates in particular to a kind of portable terminal.
Background technology
The terminal that has broadcast receiver (as FM) receiving function at present is very common.
Disclose a kind of terminal of the FM of having receiving function among the Chinese patent application prospectus CN200810040863.6, the FM reception antenna of this terminal is realized by earphone.Because earphone cord is longer, listens to FM and all will carry earphone, can cause certain inconvenience at every turn.In addition, the cost of earphone is higher, if consider to save earphone, then receives the terminal of FM based on earphone, can't realize that FM receives.
The disclosed portable terminal of Chinese patent application prospectus CN200920105948.8 has adopted the FM built-in aerial, realization FM is put outward, but need be built-in aerial of FM specialized designs, this built-in aerial uses two kinds of different enamelled wires to be wrapped in fixing plastic plate or PCB goes up realization, the inner space that this design takies is bigger, the making of this antenna and have all comparatively inconvenience of realization of the FM terminal of this antenna, and the cost of FM antenna is also bigger.
In order to reduce FM antenna cost and to reduce shared area and the volume of embedded in mobile phone FM antenna, adopted the FM antenna on the PCB among the Chinese patent application prospectus CN201010132300.7, and proposed way of realization.This mode faces following problem, if the FM antenna on the PCB is too small, then the receptivity of FM can be very poor, if increase the area of the FM antenna on the PCB, then the spending of the spending of cost and PCB area all can strengthen, under the more and more nervous situation of area on present mobile phone PCB, the possibility of carrying out the FM Antenna Design on PCB is less.
The utility model content
The technical problems to be solved in the utility model provides a kind of portable terminal, and solving needs in the radio receiver signal reception to receive the problem that the design reception antenna takes up room and raises the cost for radio receiver signal.
For solving the problems of the technologies described above, a kind of portable terminal of the present utility model, comprise: wireless signal is handled with application chip, the radio receiver signal demodulation chip of realizing termination function and the multiplex antenna that receives wireless signal, wherein, multiplex antenna is electrically connected with application chip and radio receiver signal demodulation chip respectively.
Further, multiplex antenna is the reception antenna of mobile TV chip, the reception antenna of global positioning system chip or the reception antenna of Bluetooth chip.
Further, between multiplex antenna and radio receiver signal demodulation chip, also be electrically connected with first antenna matching network.
Further, between first antenna matching network and radio receiver signal demodulation chip, also be electrically connected with amplifier.
Further, between multiplex antenna and radio receiver signal demodulation chip, also be electrically connected with filter.
Further, application chip and radio receiver signal demodulation chip all are arranged on the mainboard of portable terminal, adopt between multiplex antenna and the mainboard that the shell fragment shell foot is connected, connector connection or wire bonds.
Further, also be electrically connected with second antenna matching network between application chip and the multiplex antenna.
Further, also be electrically connected with filter between the application chip and second antenna matching network.
In sum, the utility model receives radio receiver signal with the reception antenna of existing application chip simultaneously as multiplex antenna, under the situation that does not have space placement FM antenna on the terminal fully, still can carry out the design of FM, and the effect that signal receives can reach the effect that earphone antenna receives fully, the utility model has been saved the space that specialized designs FM antenna causes and the expense of cost, and the mainboard that has solved antenna and terminal is connected insecure problem, improved the stability that radio receiver signal receives.
Description of drawings
Fig. 1 is the schematic diagram of multiplex antenna of the present utility model and mainboard connected mode;
Fig. 2 is the system block diagram of portable terminal of the present utility model;
Fig. 3 is the circuit diagram of portable terminal of the present utility model.
Embodiment
Present embodiment by with the reception antenna of other functional chips as multiplex antenna, receive radio receiver signal simultaneously, saved the expense of needed space of FM reception antenna and cost, improved the flexibility that mobile terminal FM receives design.
The portable terminal of present embodiment comprises: application chip, radio receiver signal demodulation chip and multiplex antenna, multiplex antenna are electrically connected with application chip and radio receiver signal demodulation chip respectively.
Application chip is handled to realize termination function wireless signal, multiplex antenna receives wireless signal, give application chip and radio receiver signal demodulation chip with the transmission of wireless signals that receives, with the radio receiver signal demodulation chip wireless signal is carried out different processing by application chip, realize that respectively the termination function of application chip correspondence and radio receiver signal demodulation chip demodulate radio receiver signal.
Above-mentioned application chip can be any chip that needs to use antenna in the portable terminal, for example, mobile TV chip, GPS (global positioning system) chip or Bluetooth chip etc., multiplex antenna is the reception antenna of mobile TV chip, GPS chip or Bluetooth chip.
Between multiplex antenna and radio receiver signal demodulation chip, also be connected with first antenna matching network and amplifier, as low noise amplifier (LNA).
The reception antenna that uses application chip is as multiplex antenna, and the performance of multiplex antenna and resonance location can mate by first antenna matching network, reaches optimum performance.
Low noise amplifier can further improve the signal to noise ratio of the FM signal that receives, and the FM signal that receives enters demodulation chip and carries out demodulation, and being demodulated into can be by the audio signal of loudspeaker plays.
Whether the below of the reception antenna of application chip is that headroom is very little to the influence that realizes the FM reception, does not influence receptivity substantially.
Be described in further detail below in conjunction with the enforcement of accompanying drawing technical scheme:
Be example with the mobile TV antenna as multiplex antenna below, but be not limited to the reception antenna of mobile TV antenna as FM.The purposes of mobile TV antenna itself is the reception that is used for carrying out the mobile TV signal.
Please refer to Fig. 1 and Fig. 2, application chip, antenna matching network, amplifier and radio receiver signal demodulation chip all are arranged on the mainboard of portable terminal, connected mode between mobile TV antenna and the mainboard can be modes such as the connection of shell fragment shell foot, connector connection or wire bonds, consider from the reliability angle of contact, adopt the connector ways of connecting more reliable, the connected mode of shell fragment shell foot is under the situation of shell foot distortion, and contact will weaken.Certainly, in some case, do not get rid of shell fragment shell foot ways of connecting and realize more reliable situation.
In addition, the size and the length of the length of mainboard and the area of the ground wire on the mainboard, little to the receptivity influence of FM, comprise the shape of the ground wire on the mainboard etc., also very limited to the influence of FM received signal.
To FM receive influence bigger be length as the sheet metal of reception antenna.This length is directly connected to the receiving efficiency of work to the FM signal, thereby has influence on the quality of FM received signal.
Numerous chips on the portable terminal all may receive FM and exert an adverse impact, and need to increase device this moment and evade effectively.Between multiplex antenna and radio receiver signal demodulation chip, can be connected filter, reach the purpose of isolating interference signal effectively, for example, the filter of forms such as filter can adopt that band is logical, high pass, low pass and band resistance, these filters can use lc circuit, resonator filter realization.Increase filter and can improve the poor situation of FM reception that may occur.
Figure 2 shows that the connection block diagram of each part of the terminal of present embodiment, describe with reference to the terminal reception of 2 pairs of present embodiments of figure and the process of processing radio receiver signal, wireless signal receives by multiplex antenna, regulate by first antenna matching network, after the adjusting of having carried out coupling, can carry out the debugging of LNA, amplify the FM signal that receives frequency range, improve the signal to noise ratio of FM signal, at last, the signal that receives enters demodulation chip and carries out demodulation process, output FM signal.Also be electrically connected with second antenna matching network between application chip and the multiplex antenna.Also be electrically connected with filter between the application chip and second antenna matching network.
Antenna matching network is made up of components and parts such as inductance and electric capacity, is optional part, if need not that the performance of FM is had any adjusting and optimization, can not use in terminal.
LNA part is made up of metal-oxide-semiconductor and biasing circuit and match circuit, is optional part, if need not that the performance of FM is had any adjusting and optimization, can not use in terminal.
Demodulation chip is independent F M chip not necessarily, also can be to carry out integrated with other chips.
Fig. 3 is the circuit diagram of radio receiver signal receiving unit in the portable terminal of present embodiment, and the effect to circuit diagram shown in Figure 3 makes an explanation below, and the process of this explanation has also shown the flow direction of signal.
(1) reception antenna adopts the mode of in-mould injection to be injected in the shell wall of shell received signal.
(2) block isolating device spare C1 plays every straight effect, avoids static to beat and cause the FM device failure on the shell of terminal.
(3) L1 and L2 form antenna matching network, the receptivity that can regulate FM.
(4) C2 plays every straight effect, and the bias voltage of the maintenance triode B utmost point can shorted to earth.
(5) VT5 is the metal-oxide-semiconductor in the LNA circuit, plays the effect of amplifying the FM signal.
(6) R1, R2 and R3 are the direct current biasings of metal-oxide-semiconductor amplifying circuit, and C3 is a shunt capacitance.
(7) L3, C4 and C5 are respectively the choke induction and the filter capacitors of LNA power supply.
(8) carry out demodulation by C6 every straight back input demodulation chip by the LNA amplifying signal.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention, each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules or the step with them is made into the single integrated circuit module and realizes.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is embodiments of the invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. portable terminal, it is characterized in that, comprise: wireless signal is handled with application chip, the radio receiver signal demodulation chip of realizing termination function and the multiplex antenna that receives wireless signal, wherein, described multiplex antenna is electrically connected with described application chip and radio receiver signal demodulation chip respectively.
2. portable terminal as claimed in claim 1 is characterized in that, described multiplex antenna is the reception antenna of mobile TV chip, the reception antenna of global positioning system chip or the reception antenna of Bluetooth chip.
3. portable terminal as claimed in claim 2 is characterized in that, also is electrically connected with first antenna matching network between described multiplex antenna and described radio receiver signal demodulation chip.
4. portable terminal as claimed in claim 3 is characterized in that, also is electrically connected with amplifier between described first antenna matching network and described radio receiver signal demodulation chip.
5. portable terminal as claimed in claim 2 is characterized in that, also is electrically connected with filter between described multiplex antenna and described radio receiver signal demodulation chip.
6. portable terminal as claimed in claim 2, it is characterized in that, described application chip and radio receiver signal demodulation chip all are arranged on the mainboard of portable terminal, adopt between described multiplex antenna and the described mainboard that the shell fragment shell foot is connected, connector connection or wire bonds.
7. portable terminal as claimed in claim 1 is characterized in that, also is electrically connected with second antenna matching network between described application chip and the described multiplex antenna.
8. portable terminal as claimed in claim 7 is characterized in that, also is electrically connected with filter between described application chip and described second antenna matching network.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120041995.8U CN201986014U (en) | 2011-02-18 | 2011-02-18 | Mobile terminal |
| PCT/CN2011/079794 WO2012109899A1 (en) | 2011-02-18 | 2011-09-19 | Mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120041995.8U CN201986014U (en) | 2011-02-18 | 2011-02-18 | Mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201986014U true CN201986014U (en) | 2011-09-21 |
Family
ID=44613464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120041995.8U Expired - Lifetime CN201986014U (en) | 2011-02-18 | 2011-02-18 | Mobile terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201986014U (en) |
| WO (1) | WO2012109899A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102625488A (en) * | 2012-04-19 | 2012-08-01 | 上海艾为电子技术有限公司 | Mobile terminal |
| CN106443712A (en) * | 2016-09-05 | 2017-02-22 | 北京小米移动软件有限公司 | Device and system for enhancing navigation signal, mobile terminal and vehicle |
| CN110289880A (en) * | 2019-05-10 | 2019-09-27 | 华为技术有限公司 | Signal diostribution device and electronic equipment |
| CN110931942A (en) * | 2019-12-05 | 2020-03-27 | 惠州Tcl移动通信有限公司 | Antenna assembly and mobile terminal |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101075823A (en) * | 2007-06-29 | 2007-11-21 | 中兴通讯股份有限公司南京分公司 | Antenna set on cell-phone mainboard, its mainboard and cell phone |
| CN101237484A (en) * | 2008-02-29 | 2008-08-06 | 嘉兴闻泰通讯科技有限公司 | Mobile phone circuit for supporting Bluetooth, simulation TV and FM |
| CN101764280A (en) * | 2010-03-16 | 2010-06-30 | 中兴通讯股份有限公司 | Frequency modulation antenna and realization method and mobile terminal thereof |
| CN101901961A (en) * | 2010-07-01 | 2010-12-01 | 中兴通讯股份有限公司 | Device for receiving signals, antenna device and mobile terminal |
-
2011
- 2011-02-18 CN CN201120041995.8U patent/CN201986014U/en not_active Expired - Lifetime
- 2011-09-19 WO PCT/CN2011/079794 patent/WO2012109899A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102625488A (en) * | 2012-04-19 | 2012-08-01 | 上海艾为电子技术有限公司 | Mobile terminal |
| CN106443712A (en) * | 2016-09-05 | 2017-02-22 | 北京小米移动软件有限公司 | Device and system for enhancing navigation signal, mobile terminal and vehicle |
| CN110289880A (en) * | 2019-05-10 | 2019-09-27 | 华为技术有限公司 | Signal diostribution device and electronic equipment |
| CN110931942A (en) * | 2019-12-05 | 2020-03-27 | 惠州Tcl移动通信有限公司 | Antenna assembly and mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012109899A1 (en) | 2012-08-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |
|
| CX01 | Expiry of patent term |