CN106100649A - Radio circuit and communication terminal - Google Patents
Radio circuit and communication terminal Download PDFInfo
- Publication number
- CN106100649A CN106100649A CN201610700920.3A CN201610700920A CN106100649A CN 106100649 A CN106100649 A CN 106100649A CN 201610700920 A CN201610700920 A CN 201610700920A CN 106100649 A CN106100649 A CN 106100649A
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- Prior art keywords
- amplifier
- frequency range
- radio circuit
- matching network
- signal
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Classifications
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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
- H04B1/005—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
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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
- H04B1/3827—Portable transceivers
- H04B1/3833—Hand-held transceivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
Abstract
A kind of radio circuit, including RF transceiver, wave filter and antenna, described radio circuit also includes matching network and amplifier；Described RF transceiver is electrically connected with described wave filter by described matching network, and described wave filter is electrically connected with described antenna by described amplifier, thus forms a transmitting-receiving path.The present invention also provides for the communication terminal of a kind of this radio circuit of application.The present invention by increasing described matching network and amplifier, can promote the utilization rate of the communication resource and the index of the signal receiving sensitivity of the described radio circuit of raising.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to a kind of radio circuit and apply the communication of this radio circuit eventually
End.
Background technology
For the demand meeting data service explosive growth and time user uses new business, mobile technology from 1G to
Various technological innovation is support during the development of 2G, 2G to 3G, 3G to 4G.Wherein 4G, Long Term Evolution (Long Term
Evolution, LTE) standard mainly includes time division multiplex (Time Division Duplex, TDD) and frequency division multiplexing
(Frequency Division Duplex, FDD) both of which.And for the frequency allocation number of LTE, be between 1～25
To frequency spectrum, i.e. FDD.33～43 are used for non-symmetrical spectrum, namely TDD.Wherein, China specify that 2496MHz～2690MHz
The frequency spectrum that 194MHz frequency spectrum is LTE Band 41 (B41) frequency range.
Along with the continuous maturation of radio-frequency technique, the frequency range of radio circuit is also being continuously increased, and the most each operator is to described
The requirement of radio circuit signal receiving sensitivity is also constantly promoting.In order to meet the appearance of each operator and communication system
Amount, the requirement to the signal receiving sensitivity of different frequency range in terms of radio circuit of each mobile phone manufacturer has been also carried out new
Adjust.And in order to preferably service users, rf signal reception sensitivity improves with falling over each other in all big enterprises, to radio frequency electrical
The design on road proposes new challenge.LTE B41 mainly uses the bandwidth of 100M at present, but is as frequency resource
Constantly tighten, will necessarily require that LTE B41 uses the bandwidth of full frequency band, and also the index of its sensitivity can be improved simultaneously.Existing
Some technical schemes are for LTE B41 100M bandwidth Design, and it is satisfied to sensitivity requirement.But existing skill
If the bandwidth of the full frequency band of art scheme 194M to be supported, the sensitivity of sideband can cause serious reduction due to Frequency Response.
Summary of the invention
In view of the foregoing, it is necessary to a kind of radio circuit is provided, increase LTE B41 by simple circuit structure and receive
Band limits, to meet the requirement of full frequency band, increases the utilization rate of the communication resource.
It addition, the present invention also provides for a kind of communication terminal applying described radio circuit.
A kind of radio circuit, including RF transceiver, wave filter and antenna, described radio circuit also include matching network and
Amplifier；Described RF transceiver is electrically connected with described wave filter by described matching network, and described wave filter is by described
Amplifier is electrically connected with described antenna, thus forms a transmitting-receiving path.
Further, described radio circuit also includes that a radio-frequency (RF) switch, described radio-frequency (RF) switch are electrically connected at described amplification
Between device and described antenna, described radio-frequency (RF) switch enters described transmitting-receiving path for selecting the input signal presetting frequency range.
Further, described amplifier is low noise amplifier, and described amplifier is used for strengthening described default frequency range
The signal intensity of input signal, suppress the noise signal in the input signal of described default frequency range simultaneously.
Further, described matching network is π type impedance matching network, and described matching network is used for increasing described default frequency
The use bandwidth of the input signal of section.
Further, the input signal of described default frequency range is Long Term Evolution Long Term Evolution Band 41
Frequency band signals.
A kind of communication terminal, including radio circuit, described radio circuit includes RF transceiver, wave filter and antenna, its
Being characterised by, described radio circuit also includes matching network and amplifier；Described RF transceiver by described matching network with
Described wave filter is electrically connected with, and described wave filter is electrically connected with described antenna by described amplifier, thus forms a transmitting-receiving
Path.
Further, described radio circuit also includes that a radio-frequency (RF) switch, described radio-frequency (RF) switch are electrically connected at described amplification
Between device and described antenna, described radio-frequency (RF) switch enters described transmitting-receiving path for selecting the input signal presetting frequency range.
Further, described amplifier is low noise amplifier, and described amplifier is used for strengthening described default frequency range
The signal intensity of input signal, suppress the noise signal in the input signal of described default frequency range simultaneously.
Further, described matching network is π type impedance matching network, and described matching network is used for increasing described default frequency
The use bandwidth of the input signal of section.
Further, the input signal of described default frequency range is Long Term Evolution LTE B41 frequency band signals.
Compared to prior art, radio circuit of the present invention and apply the communication terminal of this radio circuit can be by increasing
Add the part matching network bandwidth with increase LTE B41 frequency range, simultaneously by increase amplifier to strengthen input signal strength, carry
The utilization rate having risen the communication resource and the index of the signal receiving sensitivity that improves described radio circuit.
Accompanying drawing explanation
It it is the structural representation of radio circuit in one embodiment of the invention shown in Fig. 1 and Fig. 2.
It it is the structural representation of communication terminal in one embodiment of the invention shown in Fig. 3.
Main element symbol description
Radio circuit 100
RF transceiver 10
Matching network 11
Wave filter 12
Amplifier 13
Switch 14
Antenna 15
Communication terminal 200
Processor 210
Communication bus 220
User interface 230
Communication interface 240
Memorizer 250
Operating system 260
Subscriber Interface Module SIM 270
Radio circuit control module 280
First inductance or electric capacity 110
Second inductance or electric capacity 111
3rd inductance or electric capacity 112
4th inductance 113
4th electric capacity 114
5th inductance 115
5th electric capacity 116
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is purged, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.
Based on the embodiment in the present invention, those of ordinary skill in the art are institute on the premise of not making creative work
The every other embodiment obtained, broadly falls into the scope of protection of the invention.
Refering to shown in Fig. 1, a kind of radio circuit that one embodiment of the invention provides, its be applied to mobile phone, personal computer,
Panel computer, personal digital assistant (Personal Digital Assistant, PDA), IPTV (Internet
Protocol Television, IPTV), in the communication terminal such as intellectual Wearable, be used for promoting Long Term Evolution (Long
Term Evolution, LTE) the communication bandwidth of B41 frequency range, promote connecing when user uses LTE B41 UHF band reception signal
Receive performance.
Described radio circuit 100 include RF transceiver 10, matching network 11, wave filter 12, amplifier 13, switch 14 and
Antenna 15.In the present embodiment, described RF transceiver 10 is electrically connected with described wave filter 12 by described matching network 11
Connecing, described wave filter 12 is electrically connected with described switch 14 by described amplifier 13, described switch 14 and described antenna 15 electricity
Property connect.Described RF transceiver 10, matching network 11, wave filter 12, amplifier 13, switch 14 and antenna 15 between successively
Electric connection can form a transmitting-receiving path, is used for receiving and/or sending wireless signal.Described switch 14 also (is schemed with a power supply
Not shown in) be electrically connected with, the work that described power supply is described radio circuit 100 provides electric energy.
Described antenna 15 is used for receiving input signal, and by described input signal by described switch 14 send to described in put
Big device 13.In the present embodiment, described input signal includes LTE signal.The frequency range of described LTE signal can be divided into and include symmetry
The LTE B1 of frequency spectrum～B25 frequency range and include LTE B33～the B43 frequency range of non-symmetrical spectrum.
Described switch 14 is a radio-frequency (RF) switch, for selecting the input signal presetting frequency range to enter described transmitting-receiving path.?
In present embodiment, the input signal of described default frequency range is LTE B41 frequency band signals.Described switch 14 can include should
The variable connector of the input signal of the different frequency range that transmitting-receiving path is supported.When described transmitting-receiving path selects the defeated of LTE B41 frequency range
When entering signal, the input signal of the LTE B41 frequency range received from described antenna 15 is sent to described amplification by described switch 14
Device 13.
The Main Function of the amplifier 13 in described radio circuit 100 is to amplify antenna 15 from the aerial input received letter
Number, reduce the interference of noise signal simultaneously.In the present embodiment, described amplifier 13 is a low noise amplifier, uses
In the signal intensity of the input signal strengthening described default frequency range, suppress noise letter in the input signal of described default frequency range simultaneously
Number intensity.Therefore, in the present embodiment, the basic demand to described low noise amplifier has: have sufficiently high
Gain, highly beneficial to the noise coefficient reducing described radio circuit 100；There is sufficiently high receiving sensitivity；Noise coefficient
Sufficiently small；Working frequency range is sufficiently high；And there is the sufficiently high linearity, interference can be suppressed and prevent sensitivity from declining.?
In present embodiment, described amplifier 13 can strengthen the intensity of described LTE B41 frequency band signals.
Described wave filter 12 is for carrying out frequency-selecting to the input signal of described default frequency range.Owing to described amplifier 13 is right
The input signal of described default frequency range also can produce additional noise signal while being amplified, accordingly, it would be desirable to by described filter
Described noise signal is filtered by ripple device 12.In the present embodiment, described wave filter 12 can be by by described amplifier
13 be amplified after described default frequency range input signal in noise signal filter, to prevent described noise signal pair
Described input signal is disturbed.
Wave filter 12 be most basic in described radio circuit 100 be also the most frequently used radio-frequency devices, can be by microwave line
The wave filter constituted, it is also possible to be the wave filter being made up of the lumped-parameter element such as inductance, electric capacity.Preferably wave filter can divide
It it is four kinds: low pass filter, high pass filter, band filter and band elimination filter.In practical engineering application, various filtering
The design of device is extremely complex, but can be by by classical filter prototype, by different conversion, converts thereof into and wants
The wave filter asked.Classical low pass filter mainly has Butterworth, Chebyshev and elliptic function filter etc..In this enforcement
In mode, described wave filter 12 is mainly used in filtering noise signal.
Described matching network 11 is a π type impedance matching network, is specifically illustrating and sees Fig. 2.Described π type impedance matching network is used
Use bandwidth in the input signal increasing described default frequency range.In prior art, the reception of described LTE B41 frequency band signals is led to
The matching network structure that Lu Zhongyu RF transceiver 10 connects is a T-shaped impedance matching network.Domestic described LTE can be met
The signal transmission used with a width of 100MHz of B41 frequency band signals.But, described LTE B41 frequency band signals is actual can be got
Bandwidth from the 194MHz of 2496MHz to 2690MHz.It is to say, described LTE B41 frequency range also has the available band of 94MHz
Wide.In order to make full use of the bandwidth of the 194MHz of described LTE B41 frequency band signals, to increase frequency spectrum resource, this programme passes through will
T-shaped impedance matching network of the prior art expands the available band for having made full use of described 94MHz since π type impedance matching network
Wide.
In the present embodiment, described matching network 11 include the first inductance or electric capacity the 110, second inductance or electric capacity 111,
3rd inductance or electric capacity the 112, the 4th inductance the 113, the 4th electric capacity the 114, the 5th inductance 115 and the 5th electric capacity 116.Described first electricity
Sense or electric capacity the 110, second inductance or electric capacity the 111, the 3rd inductance or electric capacity 112 are sequentially connected in series in described wave filter 12 and institute
State between RF transceiver 10；After described 4th inductance 113 and the series connection of the 4th electric capacity 114, one end is connected to the first inductance or electric capacity
110 and second between inductance or electric capacity 111, other end ground connection；One end after described 5th inductance 115 and the series connection of the 5th electric capacity 116
It is connected between the second inductance or electric capacity 111 and the 3rd inductance or electric capacity 112, other end ground connection.
It is understood that in other embodiments, described matching network 11 can be not limited only to described π type impedance
Distribution network, it is also possible to by the described the most one or several inductance of matching network 11 or electric capacity, described in adjusting
Inductance or the connected mode of electric capacity and size mate different network structures.
Although it should be noted that expand described matching network 11 can increase the use bandwidth of LTE B41 frequency range, and
Described matching network 11 is expanded the most, and the use bandwidth of described LTE B41 frequency range is the widest.But, described matching network 11 is also
Connection or series inductance or the limited amount of electric capacity.Because described transmitting-receiving also can be increased while expanding described matching network 11 leads to
The Insertion Loss on road, can bring decay to the input signal of described default frequency range in the transmitting procedure of described transmitting-receiving path.
In the present embodiment, although the signal of described amplifier 13 input signal that can strengthen described default frequency range is strong
Degree, but also bring certain loss, such as mismatch loss simultaneously.And described mismatch can be reduced by described matching network 11
Loss, in order to reduce the noise coefficient of described radio circuit 100 further, thus reach to promote described radio circuit 100 and receive
The effect of signal sensitivity.
Described RF transceiver 10 is to comprise emitter (Tx) and the equipment of receptor (Rx) or module, for receive and/
Or transmission radiofrequency signal.Described emitter and the usual sharing functionality of receiver element, such as, antennal interface, low-pass filtering, Rx/
Tx conversion and relevant control circuit.Described RF transceiver 10 can be communicated by half-or full-duplex mode.Half pair
Work RF transceiver can only use transmission or receive capabilities, it is impossible to receive and dispatch simultaneously.And full-duplex transceiver can transmit simultaneously and
Receive data.In the present embodiment, described RF transceiver 10 not only adds use bandwidth for receiving but also adds signal
The input signal of the described default frequency range of intensity.Described RF transceiver 10 can also be to the input of the described default frequency range received
Signal is modulated demodulation.
Specifically, when described antenna 15 receives input signal, by described switch 14, described input signal is entered
Row Frequency Band Selection, sends the input signal of the LTE B41 frequency range received from described antenna 15 to described amplifier 13.Pass through
Described amplifier 13 strengthens the signal intensity of the input signal of described LTE B41 frequency range, suppresses described LTE B41 frequency range simultaneously
The intensity of noise signal in input signal, then the input signal of enhanced described LTE B41 frequency range is sent to described filtering
Device 12 carries out frequency-selecting.Described wave filter 12 will amplify after described LTE B41 frequency range input signal in noise signal carry out
Filter, then the input signal having filtered the described LTE B41 frequency range of noise signal is sent to described matching network 11.By institute
State the use bandwidth that matching network 11 can increase the input signal of described LTE B41 frequency range.Described matching network 11 will both increase
The input signal having added the described LTE B41 frequency range using bandwidth to add again signal intensity sends to described RF transceiver
10.The input signal of the described LTE B41 frequency range received is modulated demodulation by described RF transceiver 10, to realize communication
Connect.To sum up, the use bandwidth of the input signal that described radio circuit 100 can increase described LTE B41 frequency range is complete to meet
The requirement of frequency range.
Refering to shown in Fig. 3, a kind of communication terminal 200 provided in one embodiment of the invention.Described communication terminal 200 wraps
Include, but be not limited only to, processor 210, communication bus 220, user interface 230, communication interface 240, memorizer 250 and radio frequency electrical
Road 100.
Described processor 210, also known as central processing unit (CPU, Central Processing Unit), is one piece of super large rule
The integrated circuit of mould, is arithmetic core (Core) and the control core (Control Unit) of communication terminal 200.Processor 210
Function be mainly interpreter directive and process the data in software.
Described communication bus 220 is for realizing the communication connection between the described each assembly of communication terminal 200.
Described user interface 230 can be one or more in keyboard, mouse, remote controller, touch screen or voice-operated device,
For carrying out man-machine interaction, as received the operational order of user.
Described communication interface 240 can include that the wireline interface (such as data line interface) of standard and wave point are (as WI-FI connects
Mouth, blue tooth interface, near field communication interface).
Described memorizer 250 is used for the program that stores and various data, and realizes height in communication terminal 200 running
Speed, it is automatically completed the access of program or data.Described memorizer 250 can be communication terminal 200 External memory equipment and/
Or internal storage device.Further, described memorizer 250 can be integrated circuit do not has physical form there is storage merit
The circuit of energy, such as direct access storage device (Random-Access Memory, RAM) etc..Or, described memorizer 250 is also
Can be the storage device with physical form, such as memory bar, TF card (Trans-flash Card) etc..
As the memorizer 250 of a kind of computer-readable storage medium can include operating system 260, Subscriber Interface Module SIM
270 and radio circuit control module 280.Wherein, described operating system 260 is used for working in coordination with described in this communication terminal 200 each
The operation of assembly.Described Subscriber Interface Module SIM 270 is for preserving and safeguard the user data of this communication terminal 200.Described radio frequency
Circuit control module 280 is the program module being stored in described memorizer 250, its can be called by described processor 210 and
Run, realize widening the use of described LTE B41 frequency band signals controlling described radio circuit 100 by described processor 210
Bandwidth.Such as, described processor 210 calls described radio circuit control module 280, works in LTE at described communication terminal 200
During B41 frequency range, control described radio circuit 100 by described radio circuit control module 280 and widen described LTE B41 frequency range letter
Number use bandwidth, to promote communication bandwidth.
It is appreciated that described communication terminal 200 can be that panel computer, personal computer, smart mobile phone, individual digital help
Reasons (Personal Digital Assistant, PDA) etc., described radio circuit 100 includes RF transceiver 10, matching network
11, wave filter 12, amplifier 13, switch 14 and antenna 15.In the present embodiment, described RF transceiver 10 is by described
Distribution network 11 is electrically connected with described wave filter 12, and described wave filter 12 is electrically connected with described switch 14 by described amplifier 13
Connecing, described switch 14 is electrically connected with described antenna 15.Described RF transceiver 10, matching network 11, wave filter 12, amplifier
13, the electric connection successively between switch 14 and antenna 15 can form a transmitting-receiving path, is used for receiving and/or sending wireless communication
Number.
Specifically, when described antenna 15 receives input signal, by described switch 14, described input signal is entered
Row Frequency Band Selection, sends the input signal of the LTE B41 frequency range received from described antenna 15 to described amplifier 13.Pass through
Described amplifier 13 strengthens the signal intensity of the input signal of described LTE B41 frequency range, suppresses described LTE B41 frequency range simultaneously
The intensity of noise signal in input signal, then the input signal of enhanced described LTE B41 frequency range is sent to described filtering
Device 12 carries out frequency-selecting.Described wave filter 12 will amplify after described LTE B41 frequency range input signal in noise signal carry out
Filter, then the input signal having filtered the described LTE B41 frequency range of noise signal is sent to described matching network 11.By institute
State the use bandwidth that matching network 11 can increase the input signal of described LTE B41 frequency range.Described matching network 11 will both increase
The input signal having added the described LTE B41 frequency range using bandwidth to add again signal intensity sends to described RF transceiver
10.The input signal of the described LTE B41 frequency range received is modulated demodulation by described RF transceiver 10, to realize communication
Connect.To sum up, the use bandwidth of the input signal that described radio circuit 100 can increase described LTE B41 frequency range is complete to meet
The requirement of frequency range.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.Should not be considered as limiting involved claim by any reference in claim.This
Outward, it is clear that " including " word be not excluded for other unit or, odd number is not excluded for plural number.
Finally it should be noted that above example only in order to technical scheme to be described and unrestricted, although reference
The present invention has been described in detail by preferred embodiment, it will be understood by those within the art that, can be to the present invention's
Technical scheme is modified or equivalent, without deviating from the spirit and scope of technical solution of the present invention.
Claims (10)
1. a radio circuit, including RF transceiver, wave filter and antenna, it is characterised in that described radio circuit also includes
Matching network and amplifier；Described RF transceiver is electrically connected with described wave filter by described matching network, described filtering
Device is electrically connected with described antenna by described amplifier, thus forms a transmitting-receiving path.
2. radio circuit as claimed in claim 1, it is characterised in that described radio circuit also includes a radio-frequency (RF) switch, described
Radio-frequency (RF) switch is electrically connected between described amplifier and described antenna, and described radio-frequency (RF) switch is for selecting to preset the input of frequency range
Signal enters described transmitting-receiving path.
3. radio circuit as claimed in claim 2, it is characterised in that described amplifier is low noise amplifier, described
Amplifier, for strengthening the signal intensity of the input signal of described default frequency range, suppresses the input signal of described default frequency range simultaneously
In noise signal.
4. radio circuit as claimed in claim 1, it is characterised in that described matching network is π type impedance matching network, described
Matching network is for increasing the use bandwidth of the input signal of described default frequency range.
5. the radio circuit as described in any one in claim 2 to 4, it is characterised in that the input of described default frequency range
Signal is Long Term Evolution Long Term Evolution Band 41 frequency band signals.
6. a communication terminal, including radio circuit, described radio circuit includes RF transceiver, wave filter and antenna, and it is special
Levying and be, described radio circuit also includes matching network and amplifier；Described RF transceiver passes through described matching network and institute
Stating wave filter to be electrically connected with, described wave filter is electrically connected with described antenna by described amplifier, thus forms a transmitting-receiving and lead to
Road.
7. communication terminal as claimed in claim 6, it is characterised in that described radio circuit also includes a radio-frequency (RF) switch, described
Radio-frequency (RF) switch is electrically connected between described amplifier and described antenna, and described radio-frequency (RF) switch is for selecting to preset the input of frequency range
Signal enters described transmitting-receiving path.
8. communication terminal as claimed in claim 7, it is characterised in that described amplifier is low noise amplifier, described
Amplifier, for strengthening the signal intensity of the input signal of described default frequency range, suppresses the input signal of described default frequency range simultaneously
In noise signal.
9. communication terminal as claimed in claim 6, it is characterised in that described matching network is π type impedance matching network, described
Matching network is for increasing the use bandwidth of the input signal of described default frequency range.
10. the communication terminal as described in any one in claim 7 to 9, it is characterised in that the input of described default frequency range
Signal is LTE Band 41 frequency band signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700920.3A CN106100649A (en) | 2016-08-22 | 2016-08-22 | Radio circuit and communication terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700920.3A CN106100649A (en) | 2016-08-22 | 2016-08-22 | Radio circuit and communication terminal |
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| CN106100649A true CN106100649A (en) | 2016-11-09 |
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| CN201610700920.3A Pending CN106100649A (en) | 2016-08-22 | 2016-08-22 | Radio circuit and communication terminal |
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| CN108111153A (en) * | 2017-11-27 | 2018-06-01 | 海宁海微电子科技有限公司 | A kind of radio-frequency switch circuit |
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| CN112491434A (en) * | 2019-08-20 | 2021-03-12 | 合肥杰发科技有限公司 | Radio frequency front-end circuit, radio frequency signal receiving method, communication method and communication equipment |
| CN112636011A (en) * | 2019-10-08 | 2021-04-09 | 川升股份有限公司 | Radio frequency assembly combination and antenna device |
| WO2024087849A1 (en) * | 2022-10-28 | 2024-05-02 | 深圳飞骧科技股份有限公司 | Radio frequency receiving module and radio frequency chip |
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| CN108833031A (en) * | 2018-07-18 | 2018-11-16 | Oppo广东移动通信有限公司 | Radio circuit adjustment method and Related product |
| CN108833031B (en) * | 2018-07-18 | 2021-05-28 | Oppo广东移动通信有限公司 | Radio frequency circuit debugging method and related product |
| CN110048739A (en) * | 2019-04-29 | 2019-07-23 | 北京工业大学 | A kind of RF transmit-receive circuit |
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