CN107465432A - The implementation method of main transmitting receiving path connection diversity antenna - Google Patents
The implementation method of main transmitting receiving path connection diversity antenna Download PDFInfo
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- CN107465432A CN107465432A CN201710503899.2A CN201710503899A CN107465432A CN 107465432 A CN107465432 A CN 107465432A CN 201710503899 A CN201710503899 A CN 201710503899A CN 107465432 A CN107465432 A CN 107465432A
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- diversity antenna
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
Abstract
The present invention discloses the implementation method of main transmitting receiving path connection diversity antenna, including RF transceiver, diversity antenna interface, primary antenna interface, primary antenna interface connects radio-frequency front-end module, diversity antenna interface connects RF switch, diversity reception port is installed inside RF transceiver, main receiving port, main emission port, main emission port connects duplexer by radio frequency amplifier module, the inside of duplexer includes wave filter and integrated amplifier, duplexer connects the RF switch of bi-directional transfer of data, diversity reception port connects radio-frequency front-end module by coupler, extra device need not be increased, the frequency range that can reach in specific LTE reduces electric current, temperature, the problem of lifting OTA and optimizing Consumer's Experience under human hand pattern, have wide practical use, it is novel in design, it is a kind of good innovation scheme.
Description
Technical field
The present invention relates to communication technique field, more particularly to the realization side of main transmitting receiving path connection diversity antenna
Method.
Background technology
At present in substantial amounts of Cell Phone Design, LTE diversity antennas are placed in mobile phone top, and the main transmission/reception antennas of LTE is placed in hand
Motor spindle；LTE radio front end is placed close to mobile phone top, and the main radiofrequency signal for sending reception is transferred to by radio-frequency cable to be located at
The main transmission/reception antennas of mobile phone bottom.
The loss of radio-frequency cable rises with frequency and becomes big, works as frequency>During 2GHz, radio-frequency cable damages plus two terminal adapters
Consumption>1dB;Work as frequency>During 2.5GHz, radio-frequency cable adds the loss of two terminal adapters>1.5dB;Because sending and receiving signal all
Radio-frequency cable can be passed through, so having two losses Loss_TX, Loss_RX on the whole;Larger Loss_TX is compensated, PA is needed
Bigger power, such power consumption and electric current just obvious rising are sent, is difficult to meet quality standard in many cases；PA is sent more
After high-power, the index such as PA itself ACLR is also more difficult to debug.
Mobile phone LTE most application scenarios are that mobile phone holds online pattern, and the program also causes influence of the human hand to antenna
It is preferably minimized, the Consumer's Experience under the pattern can be optimized.
There are two kinds with the close scheme of this scheme now：Main transmission/reception antennas is placed in mobile phone by the first using on framework
Top, and diversity antenna is placed in mobile phone bottom；Second by it is main transmission receiving path and diversity path be connected to cross-
On switch, using software so that two paths switch between two antennas；The program can be according to the change reality of signal level
Existing antenna switching；
With the close scheme above two scheme of this scheme, there is the defects of certain, lead to not largely use：Will be main on framework
Transmission/reception antennas is placed in mobile phone top, and diversity antenna is placed in mobile phone bottom；The problem of program is that antenna realizes difficult；It is first
The element that mobile phone top was placed before this is numerous, and antenna free space is limited, causes the beamwidth of antenna to be limited, next to that transmitting frequency range is many
In the case of more, tested by SAR difficult；Main transmission receiving path and diversity path are connected on cross-switch, profit
With software so that two paths switch between two antennas；The program can realize that antenna switches according to signal level；But
Mordem algorithms are complicated, and cross-switch is expensive, and itself also brings certain Insertion Loss, limit its application, and one
As used in some high-end handsets.
The main receiving path path loss in the design of some mobile devices that sends of LTE is excessive, electric current can be caused to rise, generated heat
Seriously, the complete machine problem such as the index such as ACLR surplus deficiency, OTA indexs decline, when user holds surfing Internet with cell phone, hand covering LTE master
Launch reception antenna, cause the transmission reception signal of mobile phone while deteriorate, cause signal to be deteriorated, speed of surfing the Internet declines, on electric current
The complete machine problems such as liter, there is deficiency, it is impossible to meets the needs of production.
In summary, for prior art the defects of, it is accordingly required in particular to the realization of main transmitting receiving path connection diversity antenna
Method, to solve the deficiencies in the prior art.
The content of the invention
For the deficiencies in the prior art, use in practice is influenceed, the present invention proposes that main transmitting receiving path connects
The implementation method of diversity antenna is connect, novel in design, cost is low, and need not increase device, lifts the combination property used.
To achieve these goals, technical scheme is as follows：
The implementation method of main transmitting receiving path connection diversity antenna, including RF transceiver, diversity antenna interface, primary antenna connect
Mouthful, primary antenna interface connection radio-frequency front-end module, diversity antenna interface connection RF switch is provided with inside RF transceiver point
Collect receiving port, main receiving port, main emission port, main emission port connects duplexer by radio frequency amplifier module, double
The inside of work device includes wave filter and integrated amplifier, and duplexer connects the RF switch of bi-directional transfer of data, diversity reception
Port connects radio-frequency front-end module by coupler.
Further, the connection of described duplexer receives the main receiving port of data.
Further, mutual data transmission between the wave filter of described duplexer and radio frequency amplifier module, radio frequency amplification
The connection of device module receives the main receiving port of data.
Further, the transmission power detection of the coupler output port connection RF transceiver of described radio-frequency front-end module
Port.
Further, described coupler uses the directional coupler of PCB trace.
Further, described radio frequency amplifier module internal is integrated with amplifier, and the surface of radio frequency amplifier is provided with control
System switch.
Further, described radio-frequency front-end module has been internally integrated filtering unit, amplifier module.
The beneficial effects of the invention are as follows：It is simple in construction, without increasing extra device, you can reach specific LTE's
Frequency range reduces electric current, temperature, lifts OTA and the problem of optimize Consumer's Experience under human hand pattern, using flexible, is widely used
Prospect, practical performance is excellent, novel in design, is a kind of good innovation scheme.
Brief description of the drawings
Describe the present invention in detail with reference to the accompanying drawings and detailed description：
Fig. 1 is FDD-LTE original design figures；
Fig. 2 is TDD-LTE original design figures；
Fig. 3 is FDD-LTE design drawings of the present invention；
Fig. 4 is TDD-LTE design drawings of the present invention；
Fig. 5 is typical handset radio-frequency antenna Organization Chart.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
The implementation method of main transmitting receiving path connection diversity antenna, including RF transceiver, diversity antenna interface, main day
Line interface, primary antenna interface connection radio-frequency front-end module, diversity antenna interface connection RF switch, RF transceiver inside is installed
There are diversity reception port, main receiving port, main emission port, main emission port connects duplex by radio frequency amplifier module
Device, the inside of duplexer include wave filter and integrated amplifier, and duplexer connects the RF switch of bi-directional transfer of data, diversity
Receiving port connects radio-frequency front-end module by coupler.
The main transmitting path of FDD-LTE FDDs, Fig. 1 are typical FDD-LTE mobile phone radio frequencies partial block diagram, and Fig. 3 is this
The new design of invention.Duplexer（Multiplexer）Common port be changed to connect diversity path by the FEM for connecting primary path before
Switch, and diversity reception path is connected on the FEM of primary path.
Control logic corresponding to Switch and FEM needs to change, and general platform supplier has corresponding explanation；Common
Do not integrate coupler on Switch, and coupler is needed logical at this after change necessary to be mobile phone carry out Power Control
Coupler function is realized on road.Coupler implementation is more flexible, can use circuit couple mode, can with across
Group mode for holding sense, or the two combination are connect, duplexer connection receives the main receiving port of data.
The main transmitting path of TDD-LTE time division duplexs, Fig. 2 are typical TDD-LTE mobile phone radio frequencies partial block diagram, and Fig. 4 is this
New design after invention change.Duplexer（Multiplexer）Common port by the FEM for connecting primary path before be changed to connect diversity
The switch of path, and diversity reception path is connected on the FEM of primary path, the wave filter and radio frequency amplifier module of duplexer it
Between mutual data transmission, radio frequency amplifier module connection receive data main receiving port.It is same for TDD-LTE system, transmitting-receiving
Frequently, therefore the can importing program need not be changed for the design requirement of main transmitting reception antenna and diversity antenna.
Used in certain project LTE B7 frequency ranges and changed technology, under equal conditions（OTA）, the reduction of abnormal network maximum current
100mA, abnormal network maximum temperature rise reduce by 1.5 degree, and ALCR optimizes 5dB,
In addition, the transmission power detection port of the coupler output port connection RF transceiver of radio-frequency front-end module.Coupler
Using the directional coupler of PCB trace.Radio frequency amplifier module internal is integrated with amplifier, and the surface of radio frequency amplifier is provided with
Controlling switch.Radio-frequency front-end module has been internally integrated filtering unit, amplifier module.
Fig. 5 is the framework of typical mobile phone radio frequency and antenna.
Main transmission receiving path and diversity reception path flexibly distributed according to design requirement in main transmission/reception antennas and
On diversity antenna, the path of high frequency, more obvious using the resultant performance enhancements of this scheme, and the invention can be applied in FDD-
In a variety of terminals for employing MIMO technology such as LTE, TDD-LTE, LTE-CA.
The beneficial effects of the invention are as follows：It is simple in construction, without increasing extra device, you can reach specific LTE's
Frequency range reduces electric current, temperature, lifts OTA and the problem of optimize Consumer's Experience under human hand pattern, using flexible, is widely used
Prospect, practical performance is excellent, novel in design, is a kind of good innovation scheme.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, above-described embodiment and explanation
Merely illustrating the principles of the invention described in book, it is of the invention without departing from the spirit and scope of the present invention also to have respectively
Kind changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by
Appended claims and its equivalent define.
Claims (7)
1. the implementation method of main transmitting receiving path connection diversity antenna, including RF transceiver, diversity antenna interface, primary antenna
Interface, it is characterised in that：Primary antenna interface connects radio-frequency front-end module, diversity antenna interface connection RF switch, radio-frequency receiving-transmitting
Diversity reception port, main receiving port, main emission port are installed, main emission port passes through radio frequency amplifier module inside device
Duplexer is connected, the inside of duplexer includes wave filter and integrated amplifier, and duplexer connects the radio frequency of bi-directional transfer of data
Switch, diversity reception port connect radio-frequency front-end module by coupler.
2. the implementation method of main transmitting receiving path connection diversity antenna according to claim 1, it is characterised in that：Described
Duplexer connection receives the main receiving port of data.
3. the implementation method of main transmitting receiving path connection diversity antenna according to claim 1, it is characterised in that：Described
Mutual data transmission between the wave filter and radio frequency amplifier module of duplexer, the connection of radio frequency amplifier module receive the master of data
Receiving port.
4. the implementation method of main transmitting receiving path connection diversity antenna according to claim 1, it is characterised in that：Described
The transmission power detection port of the coupler output port connection RF transceiver of radio-frequency front-end module.
5. the implementation method of main transmitting receiving path connection diversity antenna according to claim 1, it is characterised in that：Described
Coupler uses the directional coupler of PCB trace.
6. the implementation method of main transmitting receiving path connection diversity antenna according to claim 1, it is characterised in that described
Radio frequency amplifier module internal is integrated with amplifier, and the surface of radio frequency amplifier is provided with controlling switch.
7. the implementation method of main transmitting receiving path connection diversity antenna according to claim 1, it is characterised in that：Described
Radio-frequency front-end module has been internally integrated filtering unit, amplifier module.
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| CN201710503899.2A CN107465432A (en) | 2017-06-28 | 2017-06-28 | The implementation method of main transmitting receiving path connection diversity antenna |
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| CN201710503899.2A CN107465432A (en) | 2017-06-28 | 2017-06-28 | The implementation method of main transmitting receiving path connection diversity antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020220886A1 (en) * | 2019-04-30 | 2020-11-05 | 维沃移动通信有限公司 | Radio-frequency apparatus and terminal device |
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| CN101741441A (en) * | 2008-11-12 | 2010-06-16 | 华为终端有限公司 | Wireless terminal and antenna switching control method and device |
| CN101483281A (en) * | 2009-02-27 | 2009-07-15 | 深圳华为通信技术有限公司 | Method and apparatus for controlling terminal antenna |
| US20150162939A1 (en) * | 2013-12-06 | 2015-06-11 | Motorola Solutions, Inc. | System and method for simultaneous voice and data communications |
| US20160105212A1 (en) * | 2014-10-09 | 2016-04-14 | Blackberry Limited | High radiation efficiency antenna systems |
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| WO2020220886A1 (en) * | 2019-04-30 | 2020-11-05 | 维沃移动通信有限公司 | Radio-frequency apparatus and terminal device |
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Application publication date: 20171212 |