CN109286708A - A kind of RF communication device - Google Patents
A kind of RF communication device Download PDFInfo
- Publication number
- CN109286708A CN109286708A CN201811380808.1A CN201811380808A CN109286708A CN 109286708 A CN109286708 A CN 109286708A CN 201811380808 A CN201811380808 A CN 201811380808A CN 109286708 A CN109286708 A CN 109286708A
- Authority
- CN
- China
- Prior art keywords
- antenna
- over switch
- change
- communication device
- communication module
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
-
- 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
- H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/006—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
-
- 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
- H04B1/401—Circuits for selecting or indicating operating mode
-
- 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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radio Transmission System (AREA)
Abstract
A kind of RF communication device, it is characterised by comprising: RF communication module, antenna change-over switch, the first RF antenna, the 2nd RF antenna and antenna-matching circuit, the RF communication module, the first RF antenna and the 2nd RF antenna are connect with antenna change-over switch respectively by antenna-matching circuit；The antenna change-over switch is for being switched to the first RF antenna for RF communication module or being switched to the 2nd RF antenna.Due to adding an antenna change-over switch to control the switching of two RF antennas, totally can reduce 300 square millimeters or more of space in this way by the way that RF antenna is split up into a middle low-frequency antenna and a high frequency antenna.
Description
Technical field
This application involves fields of communication technology, and in particular to a kind of RF communication device.
Background technique
Existing mobile terminal increasingly moves towards Internet of Things unification, and integrated functional module is more and more, there is a 2G, 3G, 4G network,
There is WIFI communication, there is Bluetooth communication, there is fingerprint recognition, there is GPS positioning, there is RFID, there is NFC communication etc..So many function mould
Block is mounted in mobile terminal, and under requirement light to mobile terminal, thin, small now, the space of mobile terminal can obviously not
Foot.
RF communication device in mobile terminal mainly includes 2G, tri- frequency ranges of 3G, 4G, these three frequency ranges covering 700MHz-
2600MHz.Referring to FIG. 1, existing way is by the debugging a to antenna of these three frequency ranges, this antenna occupied space needs
In addition 800 square millimeters of effective area also wants several millimeters of headroom, occupied space is larger, if adding the 5G of horse back restocking,
Required the space occupied can be bigger.Therefore, in the case where meeting performance requirement, RF communication device the space occupied how is saved
It is current urgent problem.
Summary of the invention
The application provides a kind of RF communication device, to reduce the occupied space of RF communication device.
According in a first aspect, provide a kind of RF communication device in a kind of embodiment, including the switching of RF communication module, antenna is opened
Pass, the first RF antenna, the 2nd RF antenna and antenna-matching circuit, the RF communication module, the first RF antenna and the 2nd RF days
Line is connect with antenna change-over switch respectively by antenna-matching circuit；The antenna change-over switch is for connecting RF communication module
To the first RF antenna or it is switched to the 2nd RF antenna.
Preferably, the antenna change-over switch is equipped with switching signal pin, and switching signal pin is used to receive switching signal,
RF communication module and the first RF antenna are connected according to switching signal or by RF communication modules and second by the antenna change-over switch
RF antenna is connected.
Preferably, the first RF antenna is middle low-frequency antenna, and the 2nd RF antenna is high frequency antenna.
Preferably, 2G and/or 3G frequency range has been debugged on the first RF antenna, and 4G and/or 5G frequency has been debugged on the 2nd RF antenna
Section.
Preferably, the model SKY77916-11 of the RF communication module.
Preferably, the model SKY13472-460LF of the antenna change-over switch.
According to the RF communication device of above-described embodiment, due to by the way that RF antenna is split up into a middle low-frequency antenna and one
High frequency antenna adds an antenna change-over switch to control the switching of two RF antennas, totally can reduce 300 squares of millis in this way
Meter or more space.Intelligently switch in two antennas, rather than design speech path network with an antenna, can have in this way
All 2G, 3G, 4G, 5G frequency range are debugged inside the space of limit, and can guarantee the performance of each frequency range, while product programming designs
It can equally accomplish beautiful exquisiteness.
Detailed description of the invention
Fig. 1 is existing RF communication device schematic diagram；
Fig. 2 is one embodiment RF communication device schematic diagram of the application；
Fig. 3 is one embodiment RF communication device circuit diagram of the application.
Specific embodiment
Below by specific embodiment combination attached drawing, invention is further described in detail.Wherein different embodiments
Middle similar component uses associated similar element numbers.In the following embodiments, many datail descriptions be in order to
The application is better understood.However, those skilled in the art can recognize without lifting an eyebrow, part of feature
It is dispensed, or can be substituted by other elements, material, method in varied situations.In some cases, this Shen
Please it is relevant it is some operation there is no in the description show or describe, this is the core in order to avoid the application by mistake
More descriptions are flooded, and to those skilled in the art, these relevant operations, which are described in detail, not to be necessary, they
Relevant operation can be completely understood according to the general technology knowledge of description and this field in specification.
It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object,
Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and
It is indirectly connected with (connection).
Referring to FIG. 2, RF communication device, including RF communication module, antenna change-over switch, the first RF antenna, the 2nd RF days
Line and antenna-matching circuit, the RF communication module, the first RF antenna and the 2nd RF antenna are distinguished by antenna-matching circuit
It is connect with antenna change-over switch；The antenna change-over switch is used to for RF communication module to be switched to the first RF antenna or is switched to the
Two RF antennas；Antenna change-over switch is equipped with switching signal pin, and switching signal pin is used to receive the external switching signal sent,
RF communication module and the first RF antenna are connected according to switching signal or by RF communication modules and the 2nd RF days by antenna change-over switch
Line is connected.
In a preferred embodiment, the first RF antenna is middle low-frequency antenna, and the 2nd RF antenna is high frequency antenna, more specifically
, 2G and/or 3G frequency range has been debugged on the first RF antenna, has debugged 4G and/or 5G frequency range on the 2nd RF antenna.
Referring to FIG. 3, being illustrated in conjunction with working principle of the Fig. 3 to the application.
The RF communication module U100 of model SKY77916-11 issues RF signal, pin of the RF signal from RF communication module
ANT is issued, and the pin RFC of antenna change-over switch U101 is reached after antenna-matching circuit.Antenna change-over switch has switching letter
Number pin V1 and V2, signal output pin J1 and J2.Switching signal pin V1 and V2 are connect with outer CPU, obtain switching signal.
Signal output pin J1 and the first RF antenna ANT101 connection, signal output pin J2 and the 2nd RF antenna ANT102 connection.It
Pin RFC is connected with signal output pin J1 according to the switching signal of switching signal pin, RF signal is sent out by line switching switch
It send to the first RF antenna ANT101 or antenna change-over switch according to the switching signal of switching signal pin, by pin RFC and believes
Number output pin J2 conducting, is sent to the 2nd RF antenna ANT102 for RF signal.
Determine that RF signal is still drawn by J2 by pin RFC by J1 pin by CPU control pin V1, pin V2
Foot, when low frequency signal is needed by pin J1 in the middle, it is low level that CPU, which controls pin V1, and pin V2 is high level, and then RF believes
Number by antenna match to antenna ANT101；When high-frequency signal is assigned to pin J2, it is high level, pin that CPU, which controls pin V1,
V2 is low level, then by antenna match to antenna ANT102, realizes speech path network function.
In addition, for the performance and antenna efficiency that guarantee antenna rf switch, by the impedance tune of antenna and antenna rf switch
Examination is 50 ohm.
Use above specific case is illustrated the present invention, is merely used to help understand the present invention, not to limit
The system present invention.For those skilled in the art, according to the thought of the present invention, can also make several simple
It deduces, deform or replaces.
Claims (6)
1. a kind of RF communication device, characterized by comprising: RF communication module, antenna change-over switch, the first RF antenna, the 2nd RF
Antenna and antenna-matching circuit, the RF communication module, the first RF antenna and the 2nd RF antenna pass through antenna-matching circuit point
It is not connect with antenna change-over switch；The antenna change-over switch is for being switched to the first RF antenna for RF communication module or being switched to
2nd RF antenna.
2. RF communication device as described in claim 1, which is characterized in that the antenna change-over switch draws equipped with switching signal
Foot, switching signal pin is for receiving switching signal, and the antenna change-over switch is according to switching signal by RF communication module and the
One RF antenna is connected or connects RF communication module and the 2nd RF antenna.
3. RF communication device as described in claim 1, which is characterized in that the first RF antenna be middle low-frequency antenna, second
RF antenna is high frequency antenna.
4. RF communication device as claimed in claim 3, which is characterized in that 2G and/or 3G frequency range has been debugged on the first RF antenna,
4G and/or 5G frequency range has been debugged on 2nd RF antenna.
5. RF communication device as described in claim 1, which is characterized in that the model SKY77916- of the RF communication module
11。
6. RF communication device as described in claim 1, which is characterized in that the model of the antenna change-over switch
SKY13472-460LF。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380808.1A CN109286708A (en) | 2018-11-20 | 2018-11-20 | A kind of RF communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380808.1A CN109286708A (en) | 2018-11-20 | 2018-11-20 | A kind of RF communication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109286708A true CN109286708A (en) | 2019-01-29 |
Family
ID=65175626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811380808.1A Pending CN109286708A (en) | 2018-11-20 | 2018-11-20 | A kind of RF communication device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109286708A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI787874B (en) * | 2021-06-21 | 2022-12-21 | 群邁通訊股份有限公司 | Radio frequency signal transceiver module and electronc device with same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202004812U (en) * | 2010-12-01 | 2011-10-05 | 惠州Tcl移动通信有限公司 | Multi-antenna structure of mobile terminal |
| CN103811866A (en) * | 2012-11-08 | 2014-05-21 | 株式会社村田制作所 | Antenna module and communication device equipped therewith |
| US20160119016A1 (en) * | 2014-10-28 | 2016-04-28 | Rf Micro Devices, Inc. | Antenna switching in a communication circuit |
| CN207490926U (en) * | 2017-09-22 | 2018-06-12 | 深圳市贝尔加数据信息有限公司 | A kind of intellectual signal switching apparatus |
| CN208908452U (en) * | 2018-11-20 | 2019-05-28 | 漳州高新区远见产业技术研究有限公司 | A kind of RF communication device |
-
2018
- 2018-11-20 CN CN201811380808.1A patent/CN109286708A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202004812U (en) * | 2010-12-01 | 2011-10-05 | 惠州Tcl移动通信有限公司 | Multi-antenna structure of mobile terminal |
| CN103811866A (en) * | 2012-11-08 | 2014-05-21 | 株式会社村田制作所 | Antenna module and communication device equipped therewith |
| US20160119016A1 (en) * | 2014-10-28 | 2016-04-28 | Rf Micro Devices, Inc. | Antenna switching in a communication circuit |
| CN207490926U (en) * | 2017-09-22 | 2018-06-12 | 深圳市贝尔加数据信息有限公司 | A kind of intellectual signal switching apparatus |
| CN208908452U (en) * | 2018-11-20 | 2019-05-28 | 漳州高新区远见产业技术研究有限公司 | A kind of RF communication device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI787874B (en) * | 2021-06-21 | 2022-12-21 | 群邁通訊股份有限公司 | Radio frequency signal transceiver module and electronc device with same |
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