CN105577224A - Radio-frequency front-end circuit and terminal - Google Patents
Radio-frequency front-end circuit and terminal Download PDFInfo
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- CN105577224A CN105577224A CN201610024386.9A CN201610024386A CN105577224A CN 105577224 A CN105577224 A CN 105577224A CN 201610024386 A CN201610024386 A CN 201610024386A CN 105577224 A CN105577224 A CN 105577224A
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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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Abstract
The invention provides a radio-frequency front-end circuit and a terminal. The radio-frequency front-end circuit comprises a main antenna and an auxiliary antenna; the auxiliary antenna covers a first working frequency and is connected with a multiplexer; the first working frequency comprises a plurality of frequency points in one or more frequency bands; and the multiplexer is used for transmitting a signal from the auxiliary antenna to a transceiver or transmitting a signal from the transceiver to the auxiliary antenna. By adopting the technical scheme in the invention, the insertion loss of the signal in the first working efficiency can be effectively reduced; and the transceiving performance of communication equipment can be improved.
Description
Technical field
The application relates to wireless communication technology field, can be applied to high in the clouds field in intelligent robotics, particularly a kind of radio-frequency (RF) front-end circuit and terminal.
Background technology
Fig. 1 is existing radio-frequency (RF) front-end circuit design schematic diagram, as shown in Figure 1, current radio-frequency (RF) front-end circuit design, normally all frequency ranges are all focused on an antenna outlet, when introducing carrier aggregation, increase corresponding radio frequency front-end devices, because each radio frequency front-end devices can introduce insertion loss, the transmitting-receiving performance of equipment can be reduced.
application content
The embodiment of the present application proposes a kind of radio-frequency (RF) front-end circuit and terminal, causes affecting the problem of equipment transmitting-receiving performance in order to overcome because introducing radio frequency front-end devices.
The embodiment of the present application provides a kind of radio-frequency (RF) front-end circuit, comprising:
Main antenna;
Slave antenna, described slave antenna covers the first operating frequency, is connected with multiplexer; Described first operating frequency comprises the frequency in one or more frequency range;
Described multiplexer is used for will from described slave antenna Signal transmissions to transceiver, or, by the Signal transmissions from described transceiver to described slave antenna.
The embodiment of the present application provides a kind of terminal, comprising: above-mentioned radio-frequency (RF) front-end circuit.
The application's beneficial effect is as follows:
The embodiment of the present application provides a kind of radio-frequency (RF) front-end circuit, reception or the transmission that multiplexer carries out the signal of the first operating frequency is added by slave antenna, not through duplexer, effectively can reduce the Insertion Loss to described first service frequency signal, improve the transmitting-receiving performance of communication equipment.
The terminal that the embodiment of the present application provides, owing to including above-mentioned radio-frequency (RF) front-end circuit, the reception of the signal of the first operating frequency or transmission are by means of only slave antenna and multiplexer, and without duplexer, effectively can reduce the Insertion Loss to described first service frequency signal, improve the transmitting-receiving performance of communication equipment.
Accompanying drawing explanation
The specific embodiment of the application is described below with reference to accompanying drawings.
Fig. 1 is existing radio-frequency (RF) front-end circuit design schematic diagram;
Fig. 2 is the structural representation of the radio-frequency (RF) front-end circuit in the embodiment of the present application;
Fig. 3 is the structural representation of the radio-frequency (RF) front-end circuit embodiment in the embodiment of the present application.
Embodiment
In order to the technical scheme and advantage that make the application are clearly understood, be described in more detail below in conjunction with the exemplary embodiment of accompanying drawing to the application, obviously, described embodiment is only a part of embodiment of the application, instead of all embodiments is exhaustive.And when not conflicting, the embodiment in this specification and the feature in embodiment can be combined with each other.
Fig. 2 is the structural representation of the radio-frequency (RF) front-end circuit in the embodiment of the present application, and as shown in Figure 2, this radio-frequency (RF) front-end circuit can comprise:
Main antenna;
Slave antenna, described slave antenna covers the first operating frequency, is connected with multiplexer; Described first operating frequency comprises the frequency in one or more frequency range;
Described multiplexer is used for will from described slave antenna Signal transmissions to transceiver, or, by the Signal transmissions from described transceiver to described slave antenna.
In concrete enforcement, the insertion loss that the signal due to different frequency causes because introducing components and parts is different, and usually, the higher insertion loss of frequency can be larger.Therefore, the kind radio-frequency (RF) front-end circuit proposed in the embodiment of the present application, received by the frequency of insertion loss sensitivity by slave antenna or sent, and slave antenna is connected with transceiver by means of only a multiplexer, to be connected to transceiver through diplexer and duplexer different from existing antenna, lacked the components and parts of duplexer, therefore, effectively can reduce insertion loss, improve transmitting-receiving performance.
Wherein, each slave antenna can cover multiple frequencies of one or more frequency range, and the quantity of the frequency range that slave antenna specifically covers and slave antenna can be determined according to actual needs.The signal of different frequency range or frequency is connected to the corresponding passage of transceiver by multiplexer.
The embodiment of the present application provides a kind of radio-frequency (RF) front-end circuit, reception or the transmission that multiplexer carries out the signal of the first operating frequency is added by slave antenna, not through duplexer, effectively can reduce the Insertion Loss to described first service frequency signal, improve the transmitting-receiving performance of communication equipment.
In enforcement, described main antenna can cover the second operating frequency; Described first operating frequency is not comprised in described second operating frequency.
In concrete enforcement, because slave antenna has covered the first operating frequency, so, the first operating frequency can not be comprised in the second operating frequency that main antenna covers.
In enforcement, described main antenna can be connected with diplexer, described diplexer is used for the signal from described main antenna to transfer to described transceiver via main antenna switching over, or, the signal from described transceiver is transferred to described main antenna via described main antenna switch.
In concrete enforcement, the main antenna covering the second operating frequency can adopt existing former-section circuit design, is connected by described main antenna via diplexer with transceiver.
In enforcement, described slave antenna can be multiple.
In concrete enforcement, if when the operating frequency of described radio-frequency (RF) front-end circuit comprises multiple frequency range comparatively responsive to insertion loss, multiple slave antenna can be adopted to cover these frequency ranges to insertion loss sensitivity.The quantity of the frequency range that slave antenna specifically covers and slave antenna can be determined according to actual needs, is not specifically limited here.
In enforcement, described first operating frequency can comprise: the multiple frequencies in any one or more frequency ranges in frequency range Band1, Band2, Band3, Band4, Band7, Band38, Band39, Band40, Band41.
In concrete enforcement, the frequency range that current communication equipment covers gets more and more, during radio circuit design, need to arrange more components and parts to meet design requirement, radio-frequency front-end can be made to design more complicated, thus cause insertion loss to increase, affect the radio-frequency performance of equipment, especially even more serious on the frequency range impact that some frequencies are high, such as (upstream frequency is frequency range B1: 1920 ~ 1980MHz, downstream frequency is: 2110 ~ 2170MHz), (upstream frequency is B2: 1850 ~ 1910MHz, downstream frequency is: 1930 ~ 1990MHz), (upstream frequency is B3: 1710 ~ 1785MHz, downstream frequency is: 1805 ~ 1880MHz), (upstream frequency is B4: 1710 ~ 1755MHz, downstream frequency is: 2110 ~ 2155MHz), (upstream frequency is B7: 2500 ~ 2570MHz, downstream frequency is: 2620 ~ 2690MHz), B38 (frequency is: 2570 ~ 2620MHz), B39 (frequency is: 1880 ~ 1920MHz), B40 (frequency is: 2300 ~ 2400MHz), B41 (frequency is: 2496 ~ 2690MHz), reception (the corresponding downstream frequency is) frequency of these frequency ranges and tranmitting frequency (corresponding upstream frequency) are all between 1700MHz to 2700MHz, if front radio-frequency device is more, the front end insertion loss of these frequency ranges will be larger, noise factor can be deteriorated, therefore the Antenna Design of the one or more frequency ranges in these frequency ranges can be considered to separate inside main antenna, realize with slave antenna, thus improve the transmitting-receiving performance of equipment.
In concrete enforcement, also can realize the transmitting-receiving of the frequency outside said frequencies with slave antenna.
In enforcement, described first operating frequency can comprise: the multiple frequencies in any two frequency ranges in Band1, Band2, Band3, Band4, Band7, Band38, Band39, Band40, Band41.
In concrete enforcement, any two frequency ranges in Band1, Band2, Band3, Band4, Band7, Band38, Band39, Band40, Band41 can be realized covering with a slave antenna, such as B1+B3, B2+B4, B7+B41, B39+B41, etc.
Fig. 3 is the structural representation of the radio-frequency (RF) front-end circuit embodiment in the embodiment of the present application, and as shown in Figure 3, the frequency of B2 and B4 is covered by slave antenna, is connected with transceiver via multiplexer.The frequency of frequency except B2 and B4 that this equipment is supported, that is, the second operating frequency, adopts existing design, is covered by main antenna.
In enforcement, described multiplexer can be four multiplexers.
In concrete enforcement, four filters merge by four multiplexers, share a node.The passband of four multiplexers loads identical with duplexer with isolation target.Four multiplexers allow two frequency bands to be connected to antenna simultaneously, and this is very useful for application such as carrier aggregation.In carrier aggregation, a communication equipment may need to receive two frequency bands simultaneously.
When employing slave antenna realizes Band1, during any two frequency ranges in Band2, Band3, Band4, Band7, Band38, Band39, Band40, Band41, the slave antenna covering two frequency bands is connected with transceiver via four multiplexers.
In enforcement, when described first operating frequency comprise three with multiple frequency in super band time, described circuit, can also comprise:
Coaxial switch;
Described slave antenna is connected to transceiver through described coaxial switch and described multiplexer.
In concrete enforcement, when slave antenna cover three with super band time, need coaxial switch to switch.Such as when slave antenna covers four frequency ranges, after a single-pole double-throw switch (SPDT) switches, four multiplexers can be connected to respectively.
In enforcement, described slave antenna is connected to transceiver through described coaxial switch and described multiplexer and can specifically comprises:
Described coaxial switch is according to the path switching to corresponding multiplexer from the signal frequency of described slave antenna and switch control logic, via the described path described Signal transmissions from described slave antenna in future to transceiver, or, according to the path switching to corresponding multiplexer from the signal frequency of transceiver and switch control logic, via described path by the described Signal transmissions from transceiver to described slave antenna.
In concrete enforcement, when slave antenna cover three with super band time, can by coaxial switch by the signal from slave antenna or the signal switching from transceiver to the respective channels of corresponding multiplexer.Illustrate below, if when slave antenna covers Band1, Band2, Band3 and Band4, can comprise two four multiplexers in described radio-frequency (RF) front-end circuit, the operating frequency of four multiplexers 1 covers Band1 and Band3, and the operating frequency of four multiplexers 2 covers Band2 and Band4.If from the signal frequency f of slave antenna
abelong to the frequency range of Band4, then according to signal frequency f
aand switch control logic, coaxial switch will switch to Band4 Signal reception path in four multiplexers 2, and through described in described Band4 Signal reception tunnel from the signal of slave antenna to transceiver.
If from the signal frequency f of transceiver
trbelong to the frequency range of Band1, then according to signal frequency f
trand switch control logic, coaxial switch will switch to Band1 signal transmission path in four multiplexers 1, and through described Band1 signal transmission path, the signal from transceiver be transferred to slave antenna via coaxial switch.
Based on same application design, the embodiment of the present application, on the basis proposing above-mentioned radio-frequency (RF) front-end circuit, additionally provides a kind of terminal.
This terminal can comprise: above-mentioned radio frequency former-section circuit.
The terminal that the embodiment of the present application provides, owing to including above-mentioned radio-frequency (RF) front-end circuit, the reception of the signal of the first operating frequency or transmission are by means of only slave antenna and multiplexer, and without duplexer, effectively can reduce the Insertion Loss to described first service frequency signal, improve the transmitting-receiving performance of communication equipment.
Although described the preferred embodiment of the application, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the application's scope.
Obviously, those skilled in the art can carry out various change and modification to the application and not depart from the spirit and scope of the application.Like this, if these amendments of the application and modification belong within the scope of the application's claim and equivalent technologies thereof, then the application is also intended to comprise these change and modification.
Claims (10)
1. a radio-frequency (RF) front-end circuit, is characterized in that, comprising:
Main antenna;
Slave antenna, described slave antenna covers the first operating frequency, is connected with multiplexer; Described first operating frequency comprises the frequency in one or more frequency range;
Described multiplexer is used for will from described slave antenna Signal transmissions to transceiver, or, by the Signal transmissions from described transceiver to described slave antenna.
2. circuit as claimed in claim 1, it is characterized in that, described main antenna covers the second operating frequency; Described first operating frequency is not comprised in described second operating frequency.
3. circuit as claimed in claim 2, it is characterized in that, described main antenna is connected with diplexer, described diplexer is used for the signal from described main antenna to transfer to described transceiver via main antenna switching over, or, the signal from described transceiver is transferred to described main antenna via described main antenna switch.
4. circuit as claimed in claim 1, it is characterized in that, described slave antenna is multiple.
5. circuit as claimed in claim 1, it is characterized in that, described first operating frequency comprises: the multiple frequencies in any one or more frequency ranges in frequency range Band1, Band2, Band3, Band4, Band7, Band38, Band39, Band40, Band41.
6. circuit as claimed in claim 1, it is characterized in that, described first operating frequency comprises: the multiple frequencies in any two frequency ranges in Band1, Band2, Band3, Band4, Band7, Band38, Band39, Band40, Band41.
7. circuit as claimed in claim 6, it is characterized in that, described multiplexer is four multiplexers.
8. circuit as claimed in claim 1, is characterized in that, when described first operating frequency comprise three with multiple frequency in super band time, described circuit, also comprises:
Coaxial switch;
Described slave antenna is connected to transceiver through described coaxial switch and described multiplexer.
9. circuit as claimed in claim 8, it is characterized in that, described slave antenna is connected to transceiver through described coaxial switch and described multiplexer and specifically comprises:
Described coaxial switch is according to the path switching to corresponding multiplexer from the signal frequency of described slave antenna and switch control logic, via the described path described Signal transmissions from described slave antenna in future to transceiver, or, according to the path switching to corresponding multiplexer from the signal frequency of transceiver and switch control logic, via described path by the described Signal transmissions from transceiver to described slave antenna.
10. a terminal, is characterized in that, comprising: the radio frequency former-section circuit shown in as arbitrary in claim 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610024386.9A CN105577224A (en) | 2016-01-14 | 2016-01-14 | Radio-frequency front-end circuit and terminal |
| PCT/CN2016/106351 WO2017121184A1 (en) | 2016-01-14 | 2016-11-18 | Radio frequency front-end circuit and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610024386.9A CN105577224A (en) | 2016-01-14 | 2016-01-14 | Radio-frequency front-end circuit and terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105577224A true CN105577224A (en) | 2016-05-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610024386.9A Pending CN105577224A (en) | 2016-01-14 | 2016-01-14 | Radio-frequency front-end circuit and terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105577224A (en) |
| WO (1) | WO2017121184A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106848530A (en) * | 2017-03-30 | 2017-06-13 | 东南大学 | Multifrequency dual-polarization omnidirectional antenna |
| WO2017121184A1 (en) * | 2016-01-14 | 2017-07-20 | 深圳前海达闼云端智能科技有限公司 | Radio frequency front-end circuit and terminal |
| WO2018068610A1 (en) * | 2016-10-13 | 2018-04-19 | 中兴通讯股份有限公司 | Antenna matching circuit, frequency band selection method, and apparatus |
| CN109450496A (en) * | 2018-10-11 | 2019-03-08 | 展讯通信（上海）有限公司 | Antenna duplexer system, terminal |
| CN110572178A (en) * | 2019-09-06 | 2019-12-13 | 维沃移动通信有限公司 | network radio frequency structure, radio frequency control method and electronic equipment |
| CN111817733A (en) * | 2020-07-28 | 2020-10-23 | 惠州Tcl移动通信有限公司 | Radio frequency structure and mobile terminal |
| WO2022111566A1 (en) * | 2020-11-26 | 2022-06-02 | 华为技术有限公司 | Radio-frequency unit, antenna, and signal processing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101442839A (en) * | 2007-11-23 | 2009-05-27 | Nxp股份有限公司 | System for implementing multi-mode standby terminal by filter |
| US20130250819A1 (en) * | 2012-03-22 | 2013-09-26 | Rf Micro Devices, Inc. | Carrier aggregation front end architecture |
| US20150295596A1 (en) * | 2014-04-11 | 2015-10-15 | Skyworks Solutions, Inc. | Circuits and methods related to radio-frequency receivers having carrier aggregation |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101572534B1 (en) * | 2009-06-18 | 2015-11-30 | 삼성전자주식회사 | Radio frequency front end module and multi band module using the radio frequency front end module |
| CN101740869B (en) * | 2009-12-18 | 2012-11-07 | 浙江大学 | Integrated multi-antenna and multiplexer module device of MIMO system base station |
| US9219594B2 (en) * | 2012-06-18 | 2015-12-22 | Rf Micro Devices, Inc. | Dual antenna integrated carrier aggregation front end solution |
| CN203705644U (en) * | 2014-02-20 | 2014-07-09 | 成都信息工程学院 | GPS multi-antenna switching, sharing and multiplexing device |
| CN105577224A (en) * | 2016-01-14 | 2016-05-11 | 深圳前海达闼云端智能科技有限公司 | Radio-frequency front-end circuit and terminal |
-
2016
- 2016-01-14 CN CN201610024386.9A patent/CN105577224A/en active Pending
- 2016-11-18 WO PCT/CN2016/106351 patent/WO2017121184A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101442839A (en) * | 2007-11-23 | 2009-05-27 | Nxp股份有限公司 | System for implementing multi-mode standby terminal by filter |
| US20130250819A1 (en) * | 2012-03-22 | 2013-09-26 | Rf Micro Devices, Inc. | Carrier aggregation front end architecture |
| US20150295596A1 (en) * | 2014-04-11 | 2015-10-15 | Skyworks Solutions, Inc. | Circuits and methods related to radio-frequency receivers having carrier aggregation |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017121184A1 (en) * | 2016-01-14 | 2017-07-20 | 深圳前海达闼云端智能科技有限公司 | Radio frequency front-end circuit and terminal |
| WO2018068610A1 (en) * | 2016-10-13 | 2018-04-19 | 中兴通讯股份有限公司 | Antenna matching circuit, frequency band selection method, and apparatus |
| CN106848530A (en) * | 2017-03-30 | 2017-06-13 | 东南大学 | Multifrequency dual-polarization omnidirectional antenna |
| CN106848530B (en) * | 2017-03-30 | 2023-05-16 | 东南大学 | Multi-frequency dual-polarization omnidirectional antenna |
| CN109450496A (en) * | 2018-10-11 | 2019-03-08 | 展讯通信（上海）有限公司 | Antenna duplexer system, terminal |
| CN110572178A (en) * | 2019-09-06 | 2019-12-13 | 维沃移动通信有限公司 | network radio frequency structure, radio frequency control method and electronic equipment |
| US11942979B2 (en) | 2019-09-06 | 2024-03-26 | Vivo Mobile Communication Co., Ltd. | Network radio frequency structure, radio frequency control method, and electronic device |
| CN111817733A (en) * | 2020-07-28 | 2020-10-23 | 惠州Tcl移动通信有限公司 | Radio frequency structure and mobile terminal |
| CN111817733B (en) * | 2020-07-28 | 2022-04-22 | 惠州Tcl移动通信有限公司 | Radio frequency structure and mobile terminal |
| WO2022111566A1 (en) * | 2020-11-26 | 2022-06-02 | 华为技术有限公司 | Radio-frequency unit, antenna, and signal processing method |
| EP4231525A4 (en) * | 2020-11-26 | 2024-04-17 | Huawei Tech Co Ltd | Radio-frequency unit, antenna, and signal processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017121184A1 (en) | 2017-07-20 |
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Application publication date: 20160511 |
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