CN107689804A - Radio frequency amplifier and system based on TDD mode of operations - Google Patents
Radio frequency amplifier and system based on TDD mode of operations Download PDFInfo
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- CN107689804A CN107689804A CN201610633188.2A CN201610633188A CN107689804A CN 107689804 A CN107689804 A CN 107689804A CN 201610633188 A CN201610633188 A CN 201610633188A CN 107689804 A CN107689804 A CN 107689804A
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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
- H04B1/02—Transmitters
- H04B1/04—Circuits
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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
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The embodiment of the invention discloses a kind of radio frequency amplifier and system based on TDD mode of operations, the radio frequency amplifier includes：Signal input/output interface, signal transmitting/receiving interface, transmitting path and receiving path；The transmitting path includes at least one emission power amplifier, and the receiving path includes LNA；Wherein, the emission power amplifier is used to the transmission signal Jing Guo the transmitting path being amplified；The LNA is used to the reception signal Jing Guo the receiving path being amplified.Radio frequency amplifier described in the embodiment of the present invention can be amplified to transmission signal and reception signal, disclosure satisfy that application demand during remote work.
Description
Technical field
The present embodiments relate to wireless communication technology field, more particularly to one kind to be based on time division duplex (Time
Division Duplexing, TDD) mode of operation radio frequency amplifier and system.
Background technology
Widely used existing personal user's multi-carrier-wave wireless information local loop (Multi-Carrier a large amount of at present
Wireless Information Local Loop, McWiLL), TD SDMA (Time Division-
Synchronous Code Division Multiple Access, TD-SCDMA), timesharing Long Term Evolution (Time
Division Long Term Evolution, TD-LTE) wireless communication terminal, the needs based on batch production, radio communication
Module all mass productions, external interface form are fixed, and will according to 3GPP correlation techniques for user personal security
Ask, product maximum transmission power is typically in 142dBm or so.
But in the application of some specific industries, such as unattended wireless video monitoring terminal, it is desirable to which terminal is simultaneously near
Performance can not decline when distance, remote work, require that terminal has the nothing more more excellent than just-plainfolk terminal for this
Line ascending performance, and existing wireless communication module maximum transmission power only has 23dBm or so, when can not meet to work at a distance
Application demand.
The content of the invention
The embodiment of the present invention provides a kind of radio frequency amplifier and system based on TDD mode of operations, to meet remote work
Application demand when making.
In a first aspect, the embodiments of the invention provide a kind of radio frequency amplifier based on TDD mode of operations, including：
Signal input/output interface, signal transmitting/receiving interface, transmitting path and receiving path；Wherein, the transmitting
Path includes at least one emission power amplifier, and the receiving path includes LNA；
The signal input/output interface is connected with the transmitting path and the receiving path, for by time division duplex
The signal of TDD Wireless Telecom Equipments input is inputted to the transmitting path, or the reception signal Jing Guo the receiving path is defeated
Go out to the TDD Wireless Telecom Equipments；
Signal transmitting/the receiving interface is connected with the transmitting path and the receiving path, for described in process
The transmission signal of transmitting path is launched, or receives the transmission signal of extraneous communication equipment；
The emission power amplifier is used to the transmission signal Jing Guo the transmitting path being amplified；
The LNA is used to the reception signal Jing Guo the receiving path being amplified.
Second aspect, the embodiment of the present invention additionally provide a kind of radio frequency amplification system based on TDD mode of operations, including：
The radio frequency amplifier and TDD Wireless Telecom Equipments based on TDD mode of operations described in first aspect；The TDD radio communications are set
It is standby to be connected with the signal input/output interface of the radio frequency amplifier.
Radio frequency amplifier described in the embodiment of the present invention, emission power amplifier therein can will pass through the transmitting path
Transmission signal be amplified；Reception signal Jing Guo the receiving path can be amplified by the LNA, disclosure satisfy that
Application demand during remote work.
Brief description of the drawings
Fig. 1 is a kind of structure chart of radio frequency amplifier based on TDD mode of operations in the embodiment of the present invention one；
Fig. 2 is a kind of structure chart of radio frequency amplifier based on TDD mode of operations in the embodiment of the present invention two；
Fig. 3 is a kind of circuit diagram of radio frequency amplifier based on TDD mode of operations in the embodiment of the present invention three；
Fig. 4 A are a kind of structure charts of radio frequency amplification system based on TDD mode of operations in the embodiment of the present invention four；
Fig. 4 B are TDD channel radios in a kind of radio frequency amplification system based on TDD mode of operations in the embodiment of the present invention seven
Believe the connection structure diagram of the control interface of equipment and radio frequency amplifier.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that in order to just
Part related to the present invention rather than entire infrastructure are illustrate only in description, accompanying drawing.
Embodiment one
A kind of structure chart for radio frequency amplifier based on TDD mode of operations that Fig. 1 provides for the embodiment of the present invention one, this reality
Apply example and be applicable to the situation that using terminal carries out distance transmission and receives the signal of distance transmission, the radio frequency amplifier can
Terminal inner is integrated in, wherein, the terminal includes mobile terminal (mobile phone, smart mobile phone, tablet personal computer etc.) and fixed terminal
In (for example, desktop computer or notebook computer, Video Monitoring Terminal, wireless data transmission terminal), as shown in figure 1, specific bag
Include：Signal input/output interface 11, signal transmitting/receiving interface 12, transmitting path 13 and receiving path 14；Wherein, the hair
Penetrate path 13 and include at least one emission power amplifier 131, the receiving path 14 includes LNA 141；
Wherein, the signal input/output interface 11 is connected with the transmitting path 13 and the receiving path 14, preferably
For wired connection, the signal for time division duplex TDD Wireless Telecom Equipments to be inputted is inputted to the transmitting path 13, or will be through
The reception signal for crossing the receiving path 14 is exported to the TDD Wireless Telecom Equipments；
Signal transmitting/the receiving interface 12 is connected with the transmitting path 13 and the receiving path 14, is preferably had
Line connects, and for launching the transmission signal Jing Guo the transmitting path 13, or receives extraneous communication equipment (for example, day
Line) transmission signal；
The emission power amplifier 131 is used to the transmission signal Jing Guo the transmitting path 13 being amplified, and will
Transmission signal after amplification is launched, for example, being transmitted to antenna by the signal transmitting/receiving interface 12；
The LNA 141 is used to the reception signal Jing Guo the receiving path 14 being amplified, and by after amplification
Transmission signal is exported to the TDD Wireless Telecom Equipments, for example, being exported by the signal input/output interface 11 to described
TDD Wireless Telecom Equipments.
Described radio frequency amplifier its operation principle of this implementation is as follows：If the TDD Wireless Telecom Equipments are in transmitting
State, then transmission signal is inputted by the transmitting path 13 by the signal input/output interface 11, it is logical by the transmitting
During road 13, the emission power amplifier 131 in the transmitting path 13 can carry out power amplification to the transmission signal, and pass through
Signal transmitting/the receiving interface 12 launches the transmission signal after the amplification.If the TDD Wireless Telecom Equipments
In reception state, then the transmitting path 13 is closed, open the receiving path 14, connect by the signal transmitting/reception
The reception signal in the external world is inputted the receiving path 14 by 12 signals of mouth, when the reception signal passes through the receiving path 14,
LNA 141 in the receiving path 14 can carry out power amplification to the reception signal, and inputted by the signal/defeated
Outgoing interface 11 exports the reception signal after the amplification to the TDD Wireless Telecom Equipments.
Radio frequency amplifier described in the present embodiment, the transmitting path can will be passed through by emission power amplifier therein
Transmission signal be amplified；The reception signal Jing Guo the receiving path can be amplified by the LNA, can
Meet application demand during remote work.
Embodiment two
Fig. 2 is a kind of structure chart for radio frequency amplifier based on TDD mode of operations that the embodiment of the present invention two provides, and is such as schemed
Shown in 2, the present embodiment on the basis of above-described embodiment, in addition to：Control signal interface 21；
The control signal interface 21 is put with the TDD Wireless Telecom Equipments, the LNA 141 and the transmission power
Big device 131 connects, for controlling the working condition of the LNA 141 and the emission power amplifier 131, for example, open/
Close the LNA 141 and the emission power amplifier 131.
Optionally, the control signal interface includes following at least one：PA_EN interfaces, PA_Mode interfaces, TX_RX connect
Mouth, LNA_EN interfaces and LNA_Mode interfaces.
Wherein, the control signal of the PA_EN interfaces is used to beat emission power amplifier described in opening/closing；
The control signal of the PA_Mode interfaces is used to select the high/low gain of the emission power amplifier to launch mould
Formula；
It is to be in reception state or emitting shape that the control signal of the TX_RX interfaces, which is used to control the radio frequency amplifier,
State；
The control signal of the LNA_EN interfaces, which is used to control, beats LNA described in opening/closing；
The control signal of the LNA_Mode interfaces is used for the high/low gain receiver pattern for selecting the LNA.
The control of above-mentioned PA_EN interfaces, PA_Mode interfaces, TX_RX interfaces, LNA_EN interfaces and LNA_Mode interfaces is believed
Number come as the TDD Wireless Telecom Equipments.The control signal of radio frequency amplifier in the present invention, can be according to the tool of product
Body function is decayed, for example, together with TX_RX signals can be controlled control and be connected to LNA_EN signals, only reservation PA_EN,
Tri- signal control interfaces of PA_Mode, TX_RX, while cancel LNA_Mode control signals, the circuit after overdamping will no longer
With the high low gain selection function of reception.
On the basis of above-described embodiment, the radio frequency amplifier of the present embodiment can also include：Circulator 22；
The circulator 22 is connected with the receiving path 14 and transmitting path 13；
Now, the signal transmitting/receiving interface 12 is preferably the input/output terminal of the circulator 22.
On the basis of above-described embodiment, the receiving path 14 of the present embodiment preferably includes：First single-pole double-throw switch (SPDT),
Two single-pole double-throw switch (SPDT)s, the 3rd single-pole double-throw switch (SPDT) and the 4th single-pole double-throw switch (SPDT)；
The signal control terminal of first single-pole double-throw switch (SPDT) is the first TX_RX interfaces, first single-pole double-throw switch (SPDT)
Moved end be the signal input/output interface, a fixing end and second hilted broadsword of first single-pole double-throw switch (SPDT)
The moved end connection of commutator；
The signal control terminal of second single-pole double-throw switch (SPDT) is the first LNA_Mode interfaces, and second single-pole double throw is opened
The fixing end closed is connected with the output end of the LNA, another fixing end of second single-pole double-throw switch (SPDT) and the
The fixing end connection of three single-pole double-throw switch (SPDT)s；
The input of the LNA is connected with another fixing end of the 3rd single-pole double-throw switch (SPDT)；
The signal control terminal of 3rd single-pole double-throw switch (SPDT) is the 2nd LNA_Mode interfaces, and the 3rd single-pole double throw is opened
The moved end of pass is connected with a fixing end of the 4th single-pole double-throw switch (SPDT)；
The signal control terminal of 4th single-pole double-throw switch (SPDT) is the 2nd TX_RX interfaces, the 4th single-pole double-throw switch (SPDT)
Moved end be connected with the output end of the circulator.
On the basis of above-described embodiment, the receiving path 14 described in the present embodiment also includes：Power resistor 142；
One end of the power resistor 142 is connected with another fixing end of the 4th single-pole double-throw switch (SPDT), the work(
The other end grounding connection of rate resistance.
Wherein, the power resistor is high-power resistance, if impedance is 50 ohm of 5W or more powerful power resistors.Should
Power resistor is mainly realized when radio frequency amplifier is in emission state to the defencive function of receiving circuit.
The radio frequency amplifier of the present embodiment is used to receive the transmission signal in the external world and is amplified, while at receiving path 14
In being connected to by high-power resistance 142 with protection when protecting the radio frequency amplifier to be in emission state to receiving circuit to keep away
Exempt from receiving path device to be damaged by high-power interference is launched.Specifically, the operation principle of the present embodiment is：This reality
The radio frequency amplifier for applying example is in reception state, and the signal from the external world is received by circulator 22, for ease of describing, referred to here as
For reception signal, the circulator 22 inputs the reception signal above-mentioned receiving circuit 14, the institute of the receiving circuit 14
State the first single-pole double-throw switch (SPDT), the second single-pole double-throw switch (SPDT), LNA 141, the 3rd single-pole double-throw switch (SPDT) and the 4th single-pole double throw
Switch is respectively in the control signals of the first TX_RX interfaces, the control signal of the first LNA_Mode interfaces, LNA_EN interfaces
Under the control of the control signal of control signal, the control signal of the 2nd LNA_Mode interfaces and the 2nd TX_RX interfaces, connect to described
The collection of letters number carries out an optional reception gain power amplification, and is exported by the moved end of first single-pole double-throw switch (SPDT) to the TDD
Wireless Telecom Equipment.
On the basis of above-described embodiment, the transmitting path 13 of the present embodiment preferably includes：First hilted broadsword is double
Throw switch, the 5th single-pole double-throw switch (SPDT), fixed attenuator and the 6th single-pole double-throw switch (SPDT)；
Another fixing end of first single-pole double-throw switch (SPDT) is connected with the moved end of the 5th single-pole double-throw switch (SPDT)；
The signal control terminal of 5th single-pole double-throw switch (SPDT) is the first PA_Mode interfaces, and the 5th single-pole double throw is opened
The fixing end closed is connected with the input of the first emission power amplifier, another fixation of the 5th single-pole double-throw switch (SPDT)
End is connected with the input of the fixed attenuator；
The signal control terminal of 6th single-pole double-throw switch (SPDT) is the 2nd PA_Mode interfaces, and the 6th single-pole double throw is opened
Close a fixing end be connected with the output end of first emission power amplifier, the 6th single-pole double-throw switch (SPDT) it is another
Individual fixing end is connected with the output end of the fixed attenuator, moved end and the second transmission power of the 6th single-pole double-throw switch (SPDT)
The input connection of amplifier；
The output end of second emission power amplifier is connected with the input of the circulator.
The radio frequency amplifier of the present embodiment is used to be amplified the transmission signal of the TDD Wireless Telecom Equipments.Specifically
, the operation principle of the present embodiment is：The radio frequency amplifier of the present embodiment is in emission state, passes through first single-pole double throw
The control signal of switch and the first TX_RX interfaces inputs the transmission signal to above-mentioned transmitting path 13.Above-mentioned
First single-pole double-throw switch (SPDT) of transmitting path 13, the 5th single-pole double-throw switch (SPDT), the first emission power amplifier, fixation
Attenuator, the 6th single-pole double-throw switch (SPDT) and the second emission power amplifier respectively the control signal in the first TX_RX interfaces,
The control signal of the first PA_Mode interfaces, the control signal of the first PA_EN interfaces, the 2nd PA_Mode interfaces and second
Under the control of the control signal of PA_EN interfaces, the optional transmitting gain of power is carried out to the transmission signal and is amplified, and by described
Circulator 22 is exported to antenna.
Radio frequency amplifier described in above-described embodiment, it is logical that the transmitting can will be passed through by emission power amplifier therein
The transmission signal on road is amplified；The reception signal Jing Guo the receiving path can be amplified by the LNA, energy
Enough meet application demand during remote and near work.
Embodiment three
Fig. 3 is a kind of circuit structure diagram for radio frequency amplifier based on TDD mode of operations that the embodiment of the present invention three provides,
The present embodiment is the preferred circuit figure for realizing the above-mentioned radio frequency amplifier based on TDD mode of operations.As shown in figure 3, specifically include：
First single-pole double-throw switch (SPDT) 31, the second single-pole double-throw switch (SPDT) 32, the 3rd single-pole double-throw switch (SPDT) 33, the 4th single-pole double-throw switch (SPDT) 34,
5th single-pole double-throw switch (SPDT) 35, the 6th single-pole double-throw switch (SPDT) 36, LNA 37, power resistor 38, fixed attenuator 39, first are sent out
Penetrate power amplifier 310, the second emission power amplifier 311 and circulator 312.
Wherein, first single-pole double-throw switch (SPDT) 31, the second single-pole double-throw switch (SPDT) 32, the 3rd single-pole double-throw switch (SPDT) 33,
Four single-pole double-throw switch (SPDT)s 34, LNA 37 and power resistor 38 form receiving path.Specifically, first single-pole double-throw switch (SPDT)
31 signal control terminal is the first TX_RX interfaces, and the moved end of first single-pole double-throw switch (SPDT) 31 is the signal input/output
Interface 11, a fixing end of first single-pole double-throw switch (SPDT) 31 are connected with the moved end of second single-pole double-throw switch (SPDT) 32；
The signal control terminal of second single-pole double-throw switch (SPDT) 32 is the first LNA_Mode interfaces, second single-pole double-throw switch (SPDT) 32
One fixing end is connected with the output end of the LNA 37, another fixing end of second single-pole double-throw switch (SPDT) 32 and the
The fixing end connection of three single-pole double-throw switch (SPDT)s 33；The input of the LNA 37 and the 3rd single-pole double-throw switch (SPDT) 33
Another fixing end connection；The signal control terminal of the LNA 37 is LNA_EN interfaces；3rd single-pole double-throw switch (SPDT)
33 signal control terminal is the 2nd LNA_Mode interfaces, and the moved end of the 3rd single-pole double-throw switch (SPDT) 33 is opened with the 4th single-pole double throw
Close 34 fixing end connection；The signal control terminal of 4th single-pole double-throw switch (SPDT) 34 is the 2nd TX_RX interfaces, described
The moved end of four single-pole double-throw switch (SPDT)s 34 is connected with the output end of the circulator 312.One end of the power resistor 38 with it is described
Another fixing end connection of 4th single-pole double-throw switch (SPDT) 34, the other end grounding connection of the power resistor 38.
Wherein, first single-pole double-throw switch (SPDT) 31, the 5th single-pole double-throw switch (SPDT) 35, the 6th single-pole double-throw switch (SPDT)
36th, the fixed attenuator 39, the first emission power amplifier 310 and the second emission power amplifier 311 composition transmitting path
13.Specifically, another fixing end of first single-pole double-throw switch (SPDT) 31 and the moved end of the 5th single-pole double-throw switch (SPDT) 35 connect
Connect；The signal control terminal of 5th single-pole double-throw switch (SPDT) 35 is the first PA_Mode interfaces, the 5th single-pole double-throw switch (SPDT) 35
A fixing end be connected with the input of the first emission power amplifier 310, the 5th single-pole double-throw switch (SPDT) 35 it is another
Fixing end is connected with the input of the fixed attenuator 39；The signal control terminal of 6th single-pole double-throw switch (SPDT) 36 is second
PA_Mode interfaces, a fixing end of the 6th single-pole double-throw switch (SPDT) 36 are defeated with first emission power amplifier 310
Going out end connection, another fixing end of the 6th single-pole double-throw switch (SPDT) 36 is connected with the output end of the fixed attenuator 39,
The moved end of 6th single-pole double-throw switch (SPDT) 36 is connected with the input of the second emission power amplifier 311；Second transmitting
The output end of power amplifier 311 is connected with the input of the circulator 312；Wherein, first emission power amplifier
310 signal control terminal is the first PA_EN interfaces；The signal control terminal of second emission power amplifier 311 is the 2nd PA_
EN interfaces.
The operation principle of radio frequency amplifier based on TDD mode of operations described in this example and above-described embodiment one and embodiment
Two is similar, referring specifically to above-described embodiment one and the associated description of embodiment two, repeats no more here.
Embodiment 4
Fig. 4 A show a kind of structure of radio frequency amplification system based on TDD mode of operations of the offer of the embodiment of the present invention four
Schematic diagram, as shown in Figure 4 A, the system include the radio frequency amplifier 41 and nothing based on TDD mode of operations described in above-described embodiment
Line communication equipment 42.
Radio frequency amplification system based on TDD mode of operations described in the present embodiment with described in the various embodiments described above based on
The radio frequency amplifier operation principle of TDD mode of operations is similar with caused technique effect, repeats no more here.
On the basis of above-described embodiment, the system also includes：Antenna 43；
The antenna 43 is connected with the radio frequency amplifier 42.
On the basis of above-described embodiment, the antenna 43 is connected with the circulator of the radio frequency amplifier 42.
On the basis of above-described embodiment, control signal interface and the radio frequency of the TDD Wireless Telecom Equipments amplify
The corresponding connection of control signal interface of device.
Specifically, the control signal interface includes following at least one：PA_EN interfaces, PA_Mode interfaces, TX_RX connect
Mouth, LNA_EN interfaces and LNA_Mode interfaces.For example, it is that a kind of control of TDD Wireless Telecom Equipments is believed as shown in Figure 4 B
The schematic diagram of number interface connection corresponding with the control signal interface of the radio frequency amplifier.
Radio frequency amplification system based on TDD mode of operations described in above-described embodiment with described in the various embodiments described above based on
The radio frequency amplifier operation principle of TDD mode of operations is similar with caused technique effect, repeats no more here.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (12)
- A kind of 1. radio frequency amplifier based on TDD mode of operations, it is characterised in that including：Signal input/output interface, signal Transmitting/receiving interface, transmitting path and receiving path；Wherein, the transmitting path includes at least one emission power amplifier, The receiving path includes LNA；The signal input/output interface is connected with the transmitting path and the receiving path, for by time division duplex TDD without The signal of line communication equipment input is inputted to the transmitting path, or the reception signal Jing Guo the receiving path is exported to institute State TDD Wireless Telecom Equipments；Signal transmitting/the receiving interface is connected with the transmitting path and the receiving path, for passing through the transmitting The transmission signal of path is launched, or receives the transmission signal of extraneous communication equipment；The emission power amplifier is used to the transmission signal Jing Guo the transmitting path being amplified；The LNA is used to the reception signal Jing Guo the receiving path being amplified.
- 2. according to the method for claim 1, it is characterised in that also include：Control signal interface；The control signal interface is connected with the TDD Wireless Telecom Equipments, the LNA and the emission power amplifier.
- 3. according to the method for claim 2, it is characterised in that the control signal interface includes following at least one：PA_ EN interfaces, PA_Mode interfaces, TX_RX interfaces, LNA_EN interfaces and LNA_Mode interfaces.
- 4. according to the method for claim 3, it is characterised in that：The control signal of the PA_EN interfaces is used to beat emission power amplifier described in opening/closing；The control signal of the PA_Mode interfaces is used for the high/low gain emission mode for selecting the emission power amplifier；It is to be in reception state or emission state that the control signal of the TX_RX interfaces, which is used to control the radio frequency amplifier,；The control signal of the LNA_EN interfaces, which is used to control, beats LNA described in opening/closing；The control signal of the LNA_Mode interfaces is used for the high/low gain receiver pattern for selecting the LNA.
- 5. according to the method for claim 4, it is characterised in that also include：Circulator；The circulator is connected with the receiving path and transmitting path；Signal transmitting/the receiving interface is the input/output terminal of the circulator.
- 6. according to the method for claim 5, it is characterised in that the receiving path also includes：First single-pole double-throw switch (SPDT), Second single-pole double-throw switch (SPDT), the 3rd single-pole double-throw switch (SPDT) and the 4th single-pole double-throw switch (SPDT)；The signal control terminal of first single-pole double-throw switch (SPDT) is the first TX_RX interfaces, and first single-pole double-throw switch (SPDT) moves Hold as the signal input/output interface, a fixing end and second single-pole double throw of first single-pole double-throw switch (SPDT) The moved end connection of switch；The signal control terminal of second single-pole double-throw switch (SPDT) is the first LNA_Mode interfaces, second single-pole double-throw switch (SPDT) One fixing end is connected with the output end of the LNA, and another fixing end of second single-pole double-throw switch (SPDT) is single with the 3rd The fixing end connection of double-pole double throw switch；The input of the LNA is connected with another fixing end of the 3rd single-pole double-throw switch (SPDT)；The signal control terminal of 3rd single-pole double-throw switch (SPDT) is the 2nd LNA_Mode interfaces, the 3rd single-pole double-throw switch (SPDT) Moved end is connected with a fixing end of the 4th single-pole double-throw switch (SPDT)；The signal control terminal of 4th single-pole double-throw switch (SPDT) is the 2nd TX_RX interfaces, and the 4th single-pole double-throw switch (SPDT) moves End is connected with the output end of the circulator.
- 7. according to the method for claim 6, it is characterised in that the receiving path also includes：Power resistor；One end of the power resistor is connected with another fixing end of the 4th single-pole double-throw switch (SPDT), the power resistor Other end grounding connection.
- 8. the method according to claim 6 or 7, it is characterised in that the transmitting path includes：First single-pole double throw Switch, the 5th single-pole double-throw switch (SPDT), fixed attenuator and the 6th single-pole double-throw switch (SPDT)；Another fixing end of first single-pole double-throw switch (SPDT) is connected with the moved end of the 5th single-pole double-throw switch (SPDT)；The signal control terminal of 5th single-pole double-throw switch (SPDT) is the first PA_Mode interfaces, the 5th single-pole double-throw switch (SPDT) One fixing end is connected with the input of the first emission power amplifier, another fixing end of the 5th single-pole double-throw switch (SPDT) with The input connection of the fixed attenuator；The signal control terminal of 6th single-pole double-throw switch (SPDT) is the 2nd PA_Mode interfaces, the 6th single-pole double-throw switch (SPDT) One fixing end is connected with the output end of first emission power amplifier, and another of the 6th single-pole double-throw switch (SPDT) is solid Fixed end is connected with the output end of the fixed attenuator, and moved end and the second transmission power of the 6th single-pole double-throw switch (SPDT) are amplified The input connection of device；The output end of second emission power amplifier is connected with the input of the circulator.
- 9. a kind of radio frequency amplification system based on TDD mode of operations, it is characterised in that including described in claim any one of 1-8 The radio frequency amplifier and TDD Wireless Telecom Equipments based on TDD mode of operations；The TDD Wireless Telecom Equipments are connected with the signal input/output interface of the radio frequency amplifier.
- 10. device according to claim 9, it is characterised in that also include：Antenna；The antenna is connected with signal transmitting/receiving interface of the radio frequency amplifier.
- 11. device according to claim 10, it is characterised in that the circulator of the antenna and the radio frequency amplifier connects Connect.
- 12. according to the device described in claim any one of 9-11, it is characterised in that the control of the TDD Wireless Telecom Equipments Signaling interface connection corresponding with the control signal interface of the radio frequency amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610633188.2A CN107689804A (en) | 2016-08-04 | 2016-08-04 | Radio frequency amplifier and system based on TDD mode of operations |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610633188.2A CN107689804A (en) | 2016-08-04 | 2016-08-04 | Radio frequency amplifier and system based on TDD mode of operations |
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| CN107689804A true CN107689804A (en) | 2018-02-13 |
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| CN201610633188.2A Withdrawn CN107689804A (en) | 2016-08-04 | 2016-08-04 | Radio frequency amplifier and system based on TDD mode of operations |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494432A (en) * | 2018-05-18 | 2018-09-04 | 锐石创芯（深圳）科技有限公司 | Radio frequency front-end with low power consumption and electronic equipment comprising it |
| CN110266330A (en) * | 2018-03-12 | 2019-09-20 | 环鸿电子（昆山）有限公司 | The radio frequency front-end device and wireless communication system of wireless communication system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1741416A (en) * | 2004-08-23 | 2006-03-01 | 中兴通讯股份有限公司 | High-frequency-amplification station for supporting time division duplex operation mode in orthogonal frequency division multiplexing system |
| CN201018502Y (en) * | 2006-11-28 | 2008-02-06 | 深圳国人通信有限公司 | Trunk Amplifier Used in Network Coverage of TD-SCDMA System |
| CN101237269A (en) * | 2007-01-30 | 2008-08-06 | 武汉虹信通信技术有限责任公司 | The Method of Realizing Bidirectional Amplification of Single-channel Radio Frequency in TDD System |
-
2016
- 2016-08-04 CN CN201610633188.2A patent/CN107689804A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1741416A (en) * | 2004-08-23 | 2006-03-01 | 中兴通讯股份有限公司 | High-frequency-amplification station for supporting time division duplex operation mode in orthogonal frequency division multiplexing system |
| CN201018502Y (en) * | 2006-11-28 | 2008-02-06 | 深圳国人通信有限公司 | Trunk Amplifier Used in Network Coverage of TD-SCDMA System |
| CN101237269A (en) * | 2007-01-30 | 2008-08-06 | 武汉虹信通信技术有限责任公司 | The Method of Realizing Bidirectional Amplification of Single-channel Radio Frequency in TDD System |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110266330A (en) * | 2018-03-12 | 2019-09-20 | 环鸿电子（昆山）有限公司 | The radio frequency front-end device and wireless communication system of wireless communication system |
| CN108494432A (en) * | 2018-05-18 | 2018-09-04 | 锐石创芯（深圳）科技有限公司 | Radio frequency front-end with low power consumption and electronic equipment comprising it |
| CN108494432B (en) * | 2018-05-18 | 2024-12-27 | 锐石创芯(深圳)科技股份有限公司 | Low power consumption radio frequency front end and electronic device including the same |
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