CN202871972U - Composite antenna and mobile terminal - Google Patents
Composite antenna and mobile terminal Download PDFInfo
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- CN202871972U CN202871972U CN 201220478031 CN201220478031U CN202871972U CN 202871972 U CN202871972 U CN 202871972U CN 201220478031 CN201220478031 CN 201220478031 CN 201220478031 U CN201220478031 U CN 201220478031U CN 202871972 U CN202871972 U CN 202871972U
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Abstract
The utility model discloses a composite antenna and a mobile terminal. The composite antenna includes a micro-strip antenna, an audio frequency connection port and a multiplexing compatible unit. The micro-strip antenna is connected with the audio frequency connection port through the multiplexing compatible unit. The composite antenna multiplexes a metal component of the audio frequency connection port through the multiplexing compatible unit. The utility model also discloses a mobile terminal. Since the composite antenna provided by the utility model includes the micro-strip antenna, the audio frequency connection port and the multiplexing unit, the micro-strip antenna is connected with the audio frequency connection port through the multiplexing compatible unit and the metal component of the audio frequency connection port is multiplexed as a part of the composite antenna, the composite antenna provided by the utility model has advantages of low cost and low space occupancy of the micro-strip antenna and also has advantages of high performance and high reliability of a metal custom antenna, so that defects of a single antenna are made up and requirements for both of space and performance are met.
Description
Technical field
The application relates to moving communicating field, is specifically related to a kind of combined antenna and portable terminal.
Background technology
Generally can there be multiple antenna in the wireless mobile apparatus the inside at present, WIFI (wireless fidelity for example, Wireless Fidelity), BT(Bluetooth, bluetooth), GPS (Global Positioning System, global positioning system), 2G (second generation mobile communication technology), 3G (3G (Third Generation) Moblie technology), MIMO (Multiple-Input Multiple-Out-put, Multiple Input Multiple Output) etc.The so many antenna of design in the more and more less device space, manufacturing cost can increase thereupon, and the space of antenna is more and more littlely compressed, is the performance of sacrificing antenna as cost.Built-in aerial commonly used is generally microstrip antenna, ceramic antenna and metal customization antenna (steel disc, FPC, PDS, LDS), but the microstrip antenna poor-performing is difficult to meet the demands, the ceramic antenna high expensive, comparatively fixing to space requirement, be not suitable for flexible design, the metal customization Antenna Design cycle is longer, and cost is higher.Therefore use separately the wherein very difficult requirement of satisfying simultaneously performance, space and cost of a class antenna.
Summary of the invention
The application's technical problem to be solved is, provides a kind of and takes up room little and can guarantee combined antenna and the portable terminal of antenna performance.
The technical scheme that the application adopts is:
According to the application's one side, a kind of combined antenna is provided, comprise microstrip antenna, audio frequency connectivity port and multiplexing compatible unit, microstrip antenna are connected multiplexing compatible unit and connect with the audio frequency connectivity port; Combined antenna is by the metal parts of multiplexed audio connectivity port, multiplexing compatible unit.
The metal parts of audio frequency connectivity port comprises the sheet metal that connects earth terminal, and microstrip antenna connects with the sheet metal that is connected earth terminal by multiplexing compatible unit.
Multiplexing compatible unit comprises the first electric capacity and the first filter circuit, and the first electric capacity connects microstrip antenna and the sheet metal that is connected earth terminal, and the first filter circuit one end is connected to the first electric capacity and connects between the sheet metal of earth terminal other end ground connection.
Multiplexing compatible unit also comprises the second resistance, and the second resistance one end is connected with the FM signal end of portable terminal, and the other end is connected between the first filter circuit and the ground.
The metal parts of audio frequency connectivity port also comprises the sheet metal that connects microphone, and microstrip antenna connects with the sheet metal that is connected microphone by multiplexing compatible unit.
Multiplexing compatible unit also comprises the first resistance, and the first resistance one end is connected to the first electric capacity and connects between the sheet metal of earth terminal, and the other end connects with the sheet metal that is connected microphone.
The metal parts of audio frequency connectivity port also comprises the sheet metal that connects L channel and the sheet metal that is connected R channel, is fed to respectively the FM signal end of portable terminal after the FM signal receives by the earphone left and right acoustic channels by the sheet metal that connects L channel and the sheet metal that is connected R channel.
Multiplexing compatible unit also comprises the 3rd electric capacity and the 4th electric capacity, and the FM signal end of portable terminal connects with the sheet metal that is connected L channel by the 3rd electric capacity, connects with the sheet metal that is connected R channel by the 4th electric capacity.
Above-mentioned combined antenna also comprises the match circuit that is connected with the Transmit-Receive Unit of portable terminal, and match circuit is connected with microstrip antenna.
According to the application on the other hand, also provide a kind of portable terminal, this portable terminal comprises above-mentioned combined antenna.
Beneficial effect among the application is: the application is owing to comprise microstrip antenna, audio frequency connectivity port and multiplexing compatible unit, microstrip antenna and audio frequency connectivity port link together by multiplexing compatible unit, the metal parts of audio frequency connectivity port is multiplexed with the part of combined antenna, make the application's combined antenna not only possess the advantage that microstrip antenna low cost, low spatial take, the advantage that also possesses metal customization antenna high-performance, high reliability, remedy the defective of single antenna, realized a kind of antenna of taking into account space and performance requirement.
Description of drawings
Fig. 1 is the high-level schematic functional block diagram of the application's combined antenna;
Fig. 2 is the circuit diagram of a kind of embodiment of the application's combined antenna;
Fig. 3 is the circuit diagram of the another kind of embodiment of the application;
Fig. 4 is the circuit diagram of another embodiment of the application;
Fig. 5 is the high-level schematic functional block diagram of a kind of portable terminal of the application.
Embodiment
By reference to the accompanying drawings the application is described in further detail below by embodiment.
Embodiment one:
Please refer to Fig. 1, a kind of combined antenna of the application comprises microstrip antenna 10, is connected with the audio frequency connectivity port by multiplexing compatible unit 11 connections in audio frequency connectivity port 12 and multiplexing compatible unit 11, microstrip antenna 10; Combined antenna is multiplexed with the metal parts of audio frequency connectivity port 12 by multiplexing compatible unit 11 part of combined antenna.Microstrip antenna 10 adopts feed microstrip line, and microstrip line is a kind of with the electromagnetic wave signal transmission line of photoetching process stamp on printed circuit board (PCB), and it separates wire and ground plane with dielectric.In the present embodiment, the metal copper sheet of microstrip line near zone as the part of antenna radiator, is used for promoting the radiance of microstrip antenna 10 by headroom.Wherein v0 is the microstrip antenna signal end, and v1 is FM antenna (Frequency Modulation antenna, frequency-modulated antenna) signal end, and v2 microphone signal end, v3 are the left channel signals end, and v4 is the right-channel signals end.
Please refer to Fig. 2, in one embodiment, the metal parts of audio frequency connectivity port 12 comprises the sheet metal 124 that connects earth terminal, and microstrip antenna 10 connects with the sheet metal 124 that is connected earth terminal by multiplexing compatible unit 11.Multiplexing compatible unit 11 comprises the first capacitor C 01 and the first filter circuit, the first capacitor C 01 connects microstrip antenna 10 and the sheet metal 124 that is connected earth terminal, the first filter circuit one end is connected to the first capacitor C 01 and connects between the sheet metal 124 of earth terminal other end ground connection.In the present embodiment, the first filter circuit comprises the first inductance L 01 and the second capacitor C 02 in parallel, and FM antenna and the application's combined antenna all adopt the mode ground connection of independent magnetic bead, namely by the first magnetic bead B01 ground connection.Also connect the 5th capacitor C 05, the first filter circuit one end between the first capacitor C 01 and the sheet metal 124 that is connected earth terminal and be connected between the first capacitor C 01 and the 5th capacitor C 05, the other end is by the first magnetic bead B01 ground connection.The 5th capacitor C 05 is used for the critical parameters of microstrip antenna 10 are carried out Matching and modification, and according to concrete debugging situation, the 5th capacitor C 05 can also be other components and parts, such as resistance, inductance etc.The signal of microstrip antenna 10 links with the sheet metal 124 that is connected earth terminal with the 5th capacitor C 05 by the first capacitor C 01 from microstrip antenna signal end v0 input, forms aerial signal radiation flow process.The first capacitor C 01 and the 5th capacitor C 05 can be regulated coupling to the various critical parameters that affect antenna performance, and wherein the first capacitor C 01 can also completely cut off the FM aerial signal, prevent that the FM signal from outputing to the signal that microstrip antenna signal end v0 disturbs microstrip antenna 10.
Multiplexing compatible unit 11 comprises that also the second resistance R 02, the second resistance R 02 1 ends are connected with the FM signal end v1 of portable terminal, and the other end is connected between the first filter circuit and the ground.Also be connected with the second filter circuit 15, the second filter circuits 15 between FM signal end v1 and the second resistance R 02 and comprise the 6th capacitor C 06 and the second inductance L 02 in parallel, be used for that the FM aerial signal is carried out filtering and process.The first filter circuit can be isolated the signal of filtering microstrip antenna 10, prevents that the signal of microstrip antenna 10 from causing energy loss by the first magnetic bead B01 ground connection, can avoid again the signal of microstrip antenna 10 to enter the reception that FM signal receive path disturbs the FM signal.The FM antenna adopts the mode of independent magnetic bead ground connection, is for the backflow ground of audio signal being provided, preventing that simultaneously the FM signal from importing the loss that the earth causes energy.
In the present embodiment, combined antenna also comprises the match circuit 13 that is connected with the Transmit-Receive Unit 14 of portable terminal, and match circuit 13 is connected with microstrip antenna 10.The Transmit-Receive Unit 14 of portable terminal comprises the circuit unit that all can be finished reception and send radio wave, its signal that will need to send or receive is connected with microstrip antenna 10 by match circuit 13, the Matching and modification that match circuit 13 is used for the various critical parameters that affect antenna performance.The critical parameters that affect antenna performance have a lot, such as resonance frequency, impedance, gain, efficient and bandwidth etc.For the optimum of realizing energy transmits and the optimization process of signal, need introduction match circuit 13 to adjust accordingly.Match circuit 13 can be the match circuit that uses antenna tuner, impedance transformer, the match circuit that comprises electric capacity and inductance or gamma coupling.By the Matching and modification of 13 pairs of microstrip antennas 10 of match circuit, can improve effectiveness, make antenna be in resonance condition.
In the present embodiment, audio frequency connectivity port 12 also comprises the sheet metal 120 that connects microphone, the sheet metal 121 that connects microphone, the sheet metal 121 of the sheet metal 120 of connection microphone, connection microphone is connected with the 3rd filter circuit 16, and by the tenth capacitor C 10 ground connection.The 3rd filter circuit 16 comprises the 9th capacitor C 09, the 5th inductance L 05 and the 4th magnetic bead B04, wherein connects with the 4th magnetic bead B04 after the 9th capacitor C 09 and 05 parallel connection of the 5th inductance L.Microphone signal is from sheet metal 121 inputs of the sheet metal 120 that connects microphone, connection microphone, and it is rear by microphone signal end v2 output that the 3rd filter circuit 16 carries out the filtering processing to it, avoids interfering with each other of aerial signal and audio signal with this.
In the present embodiment, audio frequency connectivity port 12 also comprises the sheet metal 122 that connects L channel, the sheet metal 122 that connects L channel is connected with the 4th filter circuit 17, the 4th filter circuit 17 comprises the 8th capacitor C 08, the 4th inductance L 04 and the 3rd magnetic bead B03, and wherein the 8th capacitor C 08 and 04 parallel connection of the 4th inductance L are connected afterwards with the 3rd magnetic bead B03.Left channel signals is from left channel signals end v3 input, and the 4th filter circuit 17 carries out filtering to it and processes rear sheet metal 122 outputs by connecting L channel, avoids interfering with each other of aerial signal and audio signal with this.
In the present embodiment, audio frequency connectivity port 12 also comprises the sheet metal 123 that connects R channel, the sheet metal 123 that connects R channel is connected with the 5th filter circuit 18, the 5th filter circuit 18 comprises the 7th capacitor C 07, the 3rd inductance L 03 and the second magnetic bead B02, wherein connects with the second magnetic bead B02 after the 7th capacitor C 07 and 03 parallel connection of the 3rd inductance L.Right-channel signals is from right-channel signals end v4 input, and the 5th filter circuit 18 carries out filtering to it and processes rear sheet metal 123 outputs by connecting R channel, avoids interfering with each other of aerial signal and audio signal with this.
The technical scheme that provides by present embodiment, because multiplexing compatible unit links together microstrip antenna and audio frequency connectivity port, intrinsic metal parts to the audio frequency connectivity port carries out multiplexing, make this antenna possess simultaneously the advantage of microstrip antenna and metal customization antenna, remedied the defective of traditional single antenna, make the application's combined antenna both have the advantage that low cost, low spatial take, the performance of the original microstrip antenna of multiplexing raising of metal parts that again can be by the audio frequency connectivity port designs more flexible.Because comprising in the multiplexing compatible unit can be to the first electric capacity of antenna match adjustment and isolated FM aerial signal, and the first filter circuit with filter action, therefore the input signal that the application's combined antenna can complete reception microstrip antenna, can guarantee again the smooth transmission of the signal of original FM antenna, can not interfere with each other between two kinds of signals.
Embodiment two:
Please refer to Fig. 3, in one embodiment, the metal parts of audio frequency connectivity port 12 also comprises the sheet metal 120 that connects microphone and the sheet metal 121 that is connected microphone, and microstrip antenna 10 connects by the sheet metal 121 of multiplexing compatible unit 11 with the sheet metal 120 that is connected microphone or connection microphone.The sheet metal 120 that connects microphone is two parts that are interconnected with the sheet metal 121 that is connected microphone in inside, audio frequency connectivity port, multiplexing compatible unit all carries out multiplexing to these two sheet metals, but one of them sheet metal still is used for the transmission of microphone signal.Compatible unit 11 comprises that also the first resistance R 01, the first resistance R 01 1 ends are connected between the sheet metal 124 of the first capacitor C 01 and connection earth terminal, and the other end connects with the sheet metal 121 of the sheet metal 120 that is connected microphone or connection microphone.Owing to also connect the 5th capacitor C 05 between the sheet metal 124 of the first capacitor C 01 and connection earth terminal, therefore the first resistance C01 is connected to the 5th capacitor C 05 and connects between the sheet metal 124 of earth terminal, and the other end connects with the sheet metal 121 of the sheet metal 120 that is connected microphone or connection microphone.On the basis of embodiment one, the sheet metal 120 that connects microphone and the sheet metal 121 that is connected microphone are multiplexed with the part of the application's combined antenna, be to promote on the one hand the radiance of combined antenna, also can when microstrip antenna is too short, effectively replenish electrical length on the other hand.
Embodiment three:
Please refer to Fig. 4, in one embodiment, the metal parts of audio frequency connectivity port 12 also comprises the sheet metal 122 that connects L channel and the sheet metal 123 that is connected R channel, is fed to respectively the FM signal end of portable terminal after the FM signal receives by the earphone left and right acoustic channels by the sheet metal 122 that connects L channel and the sheet metal 123 that is connected R channel.On the basis of embodiment one, multiplexing compatible unit 11 also comprises the 3rd capacitor C 03 and the 4th capacitor C 04, the FM signal end of portable terminal connects with the sheet metal 122 that is connected L channel by the 3rd capacitor C 03, connects with the sheet metal 123 that is connected R channel by the 4th capacitor C 04.One end of the 3rd capacitor C 03 is connected with the second filter circuit 15, and the other end is connected between the sheet metal 122 and the 4th filter network 17 that connects L channel; One end of the 4th capacitor C 04 is connected with the second filter circuit 15, and the other end is connected between the sheet metal 123 and the 5th filter network 18 that connects R channel.The access of the 3rd capacitor C 03 and the 4th capacitor C 04 makes earphone left and right acoustic channels line be multiplexed with the part of FM antenna, the FM signal can switch on the left and right acoustic channels of audio frequency connectivity port 12 from signalling channel originally, and then the application's combined antenna and FM antenna can compatibility be operated under the high power mode, and be isolated between two kinds of signals and can not interfere with each other.
Embodiment four:
Please refer to Fig. 5, in one embodiment, the application also provides a kind of portable terminal, and this portable terminal comprises any combined antenna 20 among above-mentioned three embodiment.Portable terminal also comprises Transmit-Receive Unit 22, Transmit-Receive Unit 22 comprises the circuit unit that all can be finished reception and send radio wave, its signal that will need to send or receive is connected with the application's combined antenna 20 by match circuit 21, the Matching and modification that match circuit 21 is used for the various critical parameters that affect combined antenna 20 performances.
Because the combined antenna cost is low, it is little to take up room, performance is high, the portable terminal of therefore using this combined antenna is easy to integrated in design process more, and can guarantee antenna performance and reduce cost.
Above content is the further description of the application being done in conjunction with concrete execution mode, can not assert that the application's implementation is confined to these explanations.For the application person of an ordinary skill in the technical field, under the prerequisite that does not break away from the application's design, can also make some simple deduction or replace.
Claims (10)
1. a combined antenna is characterized in that, comprises microstrip antenna, audio frequency connectivity port and multiplexing compatible unit, described microstrip antenna be connected the audio frequency connectivity port and connect by described multiplexing compatible unit; Described combined antenna is by the metal parts of the unit multiplexed described audio frequency of described multiplexing compatibility connectivity port.
2. combined antenna as claimed in claim 1 is characterized in that, the metal parts of described audio frequency connectivity port comprises the sheet metal that connects earth terminal, and described microstrip antenna connects with the described sheet metal that is connected earth terminal by described multiplexing compatible unit.
3. combined antenna as claimed in claim 2, it is characterized in that, described multiplexing compatible unit comprises the first electric capacity and the first filter circuit, described the first electric capacity connects described microstrip antenna and is connected the sheet metal of connection earth terminal, described the first filter circuit one end is connected between the sheet metal of described the first electric capacity and described connection earth terminal other end ground connection.
4. combined antenna as claimed in claim 3 is characterized in that, described multiplexing compatible unit also comprises the second resistance, and described the second resistance one end is connected with the FM signal end of portable terminal, and the other end is connected between described the first filter circuit and the ground.
5. combined antenna as claimed in claim 2 is characterized in that, the metal parts of described audio frequency connectivity port also comprises the sheet metal that connects microphone, and described microstrip antenna connects with the described sheet metal that is connected microphone by described multiplexing compatible unit.
6. combined antenna as claimed in claim 5, it is characterized in that, described multiplexing compatible unit also comprises the first resistance, and described the first resistance one end is connected between the sheet metal of described the first electric capacity and described connection earth terminal, and the other end connects with the described sheet metal that is connected microphone.
7. combined antenna as claimed in claim 3, it is characterized in that, the metal parts of described audio frequency connectivity port also comprises the sheet metal that connects L channel and the sheet metal that is connected R channel, after the FM signal receives by the earphone left and right acoustic channels respectively the sheet metal by described connection L channel be connected the sheet metal of connection R channel and be fed to the FM signal end of portable terminal.
8. combined antenna as claimed in claim 7, it is characterized in that, described multiplexing compatible unit also comprises the 3rd electric capacity and the 4th electric capacity, the FM signal end of portable terminal connects with the described sheet metal that is connected L channel by described the 3rd electric capacity, connects with the described sheet metal that is connected R channel by described the 4th electric capacity.
9. combined antenna as claimed in claim 1 is characterized in that, also comprises the match circuit that is connected with the Transmit-Receive Unit of portable terminal, and described match circuit is connected with described microstrip antenna.
10. a portable terminal is characterized in that, comprises such as each described combined antenna in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220478031 CN202871972U (en) | 2012-09-19 | 2012-09-19 | Composite antenna and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220478031 CN202871972U (en) | 2012-09-19 | 2012-09-19 | Composite antenna and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202871972U true CN202871972U (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220478031 Expired - Fee Related CN202871972U (en) | 2012-09-19 | 2012-09-19 | Composite antenna and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202871972U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576449A (en) * | 2014-10-17 | 2016-05-11 | 展讯通信（上海）有限公司 | Earphone socket and hand-held mobile terminal |
| WO2019019995A1 (en) * | 2017-07-24 | 2019-01-31 | 惠州Tcl移动通信有限公司 | Mobile communication device and antenna thereof |
-
2012
- 2012-09-19 CN CN 201220478031 patent/CN202871972U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576449A (en) * | 2014-10-17 | 2016-05-11 | 展讯通信（上海）有限公司 | Earphone socket and hand-held mobile terminal |
| WO2019019995A1 (en) * | 2017-07-24 | 2019-01-31 | 惠州Tcl移动通信有限公司 | Mobile communication device and antenna thereof |
| US10819019B2 (en) | 2017-07-24 | 2020-10-27 | Huizhou Tcl Mobile Communication Co., Ltd. | Mobile communication device and antenna thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20190919 |