CN106374964B - Wireless communication module and its method for reducing radiation dispersion - Google Patents
Wireless communication module and its method for reducing radiation dispersion Download PDFInfo
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- CN106374964B CN106374964B CN201610810410.1A CN201610810410A CN106374964B CN 106374964 B CN106374964 B CN 106374964B CN 201610810410 A CN201610810410 A CN 201610810410A CN 106374964 B CN106374964 B CN 106374964B
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- wireless communication
- communication module
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- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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- Radio Transmission System (AREA)
Abstract
The present invention provides a kind of wireless communication modules, including RF transceiver, filter, duplexer, diversity antenna, radio-frequency front-end and primary antenna, the RF transceiver, the radio-frequency front-end and the primary antenna are sequentially connected in series, the duplexer includes input port, first output port and second output terminal mouth, the diversity antenna is electrically connected with the input port, the filter is serially connected between the RF transceiver and first output port, the wireless communication module further includes the impedor being serially connected between ground terminal and the second output terminal mouth, the RF energy for the primary antenna radiation that the diversity antenna couples is exported to the ground terminal by the second output terminal mouth of the duplexer.Compared with the relevant technologies, wireless communication module provided by the invention effectively reduces wireless communication module and generates the exceeded technical problem of radiation dispersion under 2G mode.
Description
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of wireless communication module and its reduce radiation dispersion
Method.
Background technique
3G/4G wireless communication module is to improve signal receiving sensitivity and data downloading speed at present, mostly uses multiple antennas
(double antenna or more) is designed to meet RF performance requirement.By taking double antenna as an example, primary antenna is used for radio-frequency transmissions and reception, diversity
Antenna is only used for receiving.
Since consumer product develops towards miniaturization slimming direction now, product layout space is more compact, this
So that diversity antenna and primary antenna isolation are often poor.And 3G/4G module transmission power under 2G operating mode reaches
33dBm is far longer than the transmission power of 23dBm under 3G/4G mode, this allows for multi-antenna wireless communication module often in 2G mould
Radiation dispersion excessive problem is generated under formula.
It solves the above problems therefore, it is necessary to provide the new wireless communication module of one kind.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of wireless communication modules, and wireless communication can be effectively reduced
Module generates the exceeded technical problem of radiation dispersion under 2G mode.
The present invention provides a kind of wireless communication module, including RF transceiver, filter, duplexer, diversity antenna,
Radio-frequency front-end and primary antenna, the RF transceiver, the radio-frequency front-end and the primary antenna are sequentially connected in series, the antenna
Switch includes input port, the first output port and second output terminal mouth, and the diversity antenna is electrically connected with the input port
It connects, the filter is serially connected between the RF transceiver and first output port, and the wireless communication module also wraps
The impedor being serially connected between ground terminal and the second output terminal mouth is included, the second output terminal mouth of the duplexer is passed through
The RF energy for the primary antenna radiation that the diversity antenna couples is exported to the ground terminal.
Preferably, the wireless communication module further includes being serially connected between the RF transceiver and the radio-frequency front-end
Amplifier.
Preferably, the filter is SAW filter.
Preferably, the resistance value of the impedor is 50 Europe.
Preferably, the impedor is resistance.
The method that the wireless communication module that the present invention also provides a kind of according to reduces radiation dispersion, including walk as follows
It is rapid:
Pass through the primary antenna radiated radio frequency (RF) energy；
The RF energy is coupled to receive by the diversity antenna；
The received RF energy is led through the impedor by the second output terminal mouth of the duplexer
Out to the ground terminal.
Compared with the relevant technologies, wireless communication module provided by the invention passes through in the duplexer connecting with diversity antenna
Second output terminal mouth is set, impedor is concatenated between the second output terminal mouth and ground terminal, so that diversity antenna is coupled to receive
To radiation energy exported by the second output terminal mouth to ground terminal, to effectively reduce wireless communication module in 2G mould
The exceeded technical problem of radiation dispersion is generated under formula.
Detailed description of the invention
Fig. 1 is the structural block diagram of wireless communication module of the present invention；
Fig. 2 is the flow chart for the method that wireless communication module of the present invention reduces radiation dispersion.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Referring to Fig. 1, Fig. 1 is the structural block diagram of wireless communication module of the present invention.The wireless communication module 100 includes penetrating
Frequency transceiver 1, filter 2, duplexer 3, diversity antenna 4, radio-frequency front-end 5 and primary antenna 6.In this embodiment, described
Diversity antenna 4 is only used for receiving RF energy, and the primary antenna 6 is for receiving and emitting RF energy.
The RF transceiver 1, the radio-frequency front-end 5 and the primary antenna 6 are sequentially connected in series, the wireless communication module
100 further include the amplifier 7 being serially connected between the RF transceiver 1 and the radio-frequency front-end 5.The RF transceiver 1 produces
Raw RF energy enters the primary antenna 6 and spoke after the amplifier 7 amplification, by the adjusting of the radio-frequency front-end 5
Project RF energy；If the primary antenna 6 receives RF energy, received RF energy will pass through the radio-frequency front-end 5
Directly received by the RF transceiver 1.
Since the RF energy that the primary antenna 6 of the diversity antenna 4 coupling radiates enters the duplexer 3,
3 internal circuit of duplexer can not be released effectively the RF energy of entrance, to generate by internal circuit amplification
Multiple harmonic.Therefore, the duplexer 3 provided by the invention includes input port 30, the first output port 31 and second
Output port 32, the diversity antenna 4 are electrically connected with the input port 30.The filter 2 is serially connected with the radio-frequency receiving-transmitting
Between device 1 and first output port 31, in this way, when the wireless communication module 100 is in normal mode of operation, such as
3G/4G wireless communication module works in 3G/4G frequency range, and the RF energy that the diversity antenna 4 receives will be by described first
Output port 31 enters the filter 2, is received after filtering clutter by the RF transceiver 1.
The wireless communication module 100 further includes the impedor 8 being serially connected between ground terminal and the second output terminal mouth 32,
It is penetrated by the second output terminal mouth 32 of the duplexer 3 by what the primary antenna 6 that the diversity antenna 4 couples radiated
Frequency energy is exported to ground terminal.In this way, the RF energy that couples of the diversity antenna 4 by the second output terminal mouth 32 export to
Ground terminal, to solve the exceeded technical problem of the radiation dispersion as caused by the diversity antenna 4.By this design, work as 3G/
4G wireless communication module works in 2G frequency range, and the diversity antenna 4 does not have to work, but by the diversity antenna 4 and institute
6 hypotelorism of primary antenna is stated, is easy to cause the diversity antenna 4 to receive the radio frequency energy that the primary antenna 6 radiates because of coupling
Amount, at this moment, can by the second output terminal mouth 32 by the RF energy that the primary antenna 6 being coupled to receive radiates export to
Ground terminal.
The filter 2 is SAW filter, so as to which transmission loss is effectively reduced and promotes filtering out property of clutter
Energy is equal.
In the present embodiment, the impedor 8 is resistance, and its resistance value is 50 Europe.
In conjunction with Fig. 2, Fig. 2 is the flow chart for the method that wireless communication module of the present invention reduces radiation dispersion.The present invention is also
A kind of method that the wireless communication module 100 according to reduces radiation dispersion is provided, is included the following steps:
S1, pass through the 6 radiated radio frequency (RF) energy of primary antenna；
The RF energy that the primary antenna 6 radiates is generated by the RF transceiver 1, is put by the amplifier 7
It is received by the radio-frequency front-end 5 after big and is sent to the primary antenna 6 and radiated.
S2, the RF energy is coupled to receive by the diversity antenna 4；
Since the diversity antenna 4 is excessively close apart from the primary antenna 6, cause the diversity antenna 4 that can be coupled to receive institute
State the RF energy of the radiation of primary antenna 6.
S3, by the second output terminal mouth 32 of the duplexer 3 by the received RF energy through the resistance
Anti- device 8 is exported to the ground terminal.
It, can effectively will be because of described by the way that the additional second output terminal mouth 32 is arranged on the duplexer 3
The RF energy that diversity antenna 4 is coupled to receive is exported to ground terminal, is produced to effectively reduce the wireless communication module 100
The exceeded technical problem of raw radiation dispersion.
Compared with the relevant technologies, the wireless communication module 100 provided by the invention with the diversity antenna 4 by connecting
The second output terminal mouth 32 is arranged in the duplexer 3 connect, concatenates institute between the second output terminal mouth 32 and ground terminal
State impedor 8 so that the radiation energy that is coupled to receive of the diversity antenna 4 by the second output terminal mouth 32 export to
Ground terminal, so that effectively reduce the wireless communication module 100 generates the exceeded technical problem of radiation dispersion under 2G mode.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (6)
1. a kind of wireless communication module, including RF transceiver, filter, duplexer, diversity antenna, radio-frequency front-end and master
Antenna, the RF transceiver, the radio-frequency front-end and the primary antenna are sequentially connected in series, which is characterized in that the antenna is opened
Closing includes input port, the first output port and second output terminal mouth, and the diversity antenna is electrically connected with the input port,
The filter is serially connected between the RF transceiver and first output port, and the wireless communication module further includes string
The impedor being connected between ground terminal and the second output terminal mouth, by the second output terminal mouth of the duplexer by institute
The RF energy for stating the primary antenna radiation of diversity antenna coupling is exported to the ground terminal.
2. wireless communication module according to claim 1, which is characterized in that the wireless communication module further includes being serially connected with
Amplifier between the RF transceiver and the radio-frequency front-end.
3. wireless communication module according to claim 1 or 2, which is characterized in that the filter is surface acoustic wave filtering
Device.
4. wireless communication module according to claim 1, which is characterized in that the resistance value of the impedor is 50 Europe.
5. wireless communication module according to claim 1 or 4, which is characterized in that the impedor is resistance.
6. a kind of method that wireless communication module according to claim 1 reduces radiation dispersion, which is characterized in that including such as
Lower step:
Pass through the primary antenna radiated radio frequency (RF) energy；
The RF energy is coupled to receive by the diversity antenna；
By the second output terminal mouth of the duplexer by the received RF energy through the impedor export to
The ground terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610810410.1A CN106374964B (en) | 2016-09-06 | 2016-09-06 | Wireless communication module and its method for reducing radiation dispersion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610810410.1A CN106374964B (en) | 2016-09-06 | 2016-09-06 | Wireless communication module and its method for reducing radiation dispersion |
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| CN106374964A CN106374964A (en) | 2017-02-01 |
| CN106374964B true CN106374964B (en) | 2019-01-22 |
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| CN201610810410.1A Active CN106374964B (en) | 2016-09-06 | 2016-09-06 | Wireless communication module and its method for reducing radiation dispersion |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465432A (en) * | 2017-06-28 | 2017-12-12 | 北京讯通安添通讯科技有限公司 | The implementation method of main transmitting receiving path connection diversity antenna |
| CN110221323A (en) * | 2019-05-28 | 2019-09-10 | 深圳市广和通无线股份有限公司 | GPS antenna component and system |
| CN111294067B (en) * | 2020-01-16 | 2022-07-12 | 上海闻泰信息技术有限公司 | Diversity receiving module, processing method of radiation stray and electronic equipment |
| CN112994729B (en) * | 2021-02-03 | 2023-02-03 | 昆山睿翔讯通通信技术有限公司 | Mobile terminal radio frequency module and mobile terminal |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703797A (en) * | 2014-12-16 | 2016-06-22 | 黑莓有限公司 | Method and apparatus for antenna selection |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8106838B2 (en) * | 2009-02-05 | 2012-01-31 | Research In Motion Limited | Mobile wireless communications device having diversity antenna system and related methods |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703797A (en) * | 2014-12-16 | 2016-06-22 | 黑莓有限公司 | Method and apparatus for antenna selection |
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