CN109802692A - A kind of restructural receiving and transmitting front end of ultra wide band and signal transmit-receive method - Google Patents
A kind of restructural receiving and transmitting front end of ultra wide band and signal transmit-receive method Download PDFInfo
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Abstract
The invention discloses a kind of restructural receiving and transmitting front end of ultra wide band and signal transmit-receive methods, belong to field of communication technology.The receiving and transmitting front end includes restructural frequency converter, restructural middle frequency link and restructural zero intermediate frequency transceiver, it passes through superhet variable-frequency solutions combination zero intermediate frequency variable-frequency solutions, using two-way amplifier, restructural bandpass filter, restructural low-pass amplifier, numerical-control attenuator, variable gain amplifier, and zero intermediate frequency transmitting-receiving is combined from technology of closed loop, the transmitting-receiving that can be realized 3GHz-18GHz radiofrequency signal to baseband signal converts.The present invention realizes the reconstruct of the technical indicators such as the function remodelings such as transmitting-receiving, conversion architecture and gain, instant bandwidth, uses in particularly suitable software radio in the field of communications, cognition wireless receive-transmit system.
Description
Technical field
The present invention relates to field of communication technology, a kind of restructural receiving and transmitting front end of ultra wide band and signal transmitting and receiving side are particularly related to
Method.
Background technique
As the key components of communication system, the radiofrequency signal of specific frequency is mainly transformed to base band by receiving front-end
Signal is used for digital-to-analogue conversion, and the analog baseband signal that front end of emission mainly obtains analog-to-digital conversion transforms to penetrating for specific frequency
Frequency signal is emitted.
Currently, being directed to different communication standards, signal frequency range and characteristics of signals, need using dedicated upper and lower frequency conversion
Device is converted between radiofrequency signal and baseband signal.Especially for the broadband application of microwave frequency band, these frequency converters are logical
Frequently with the multistage frequency conversion of superhet form, variable-frequency solutions and technical indicator are fixed, and cannot achieve conversion architecture, instantaneous
The functions such as bandwidth and technical indicator it is restructural.
Summary of the invention
For above-mentioned problems of the prior art, the present invention provides a kind of restructural receiving and transmitting front end of ultra wide band and signal
Receiving/transmission method, the receiving and transmitting front end have the characteristics that ultra wide band, restructural, Neng Gouman by the way of superhet combination zero intermediate frequency
The demand of sufficient microwave frequency band communication system multifunctional reconfigurable.
To achieve the goals above, the technical solution adopted by the present invention is that:
A kind of restructural receiving and transmitting front end of ultra wide band comprising restructural frequency converter 1, restructural middle frequency link 2, restructural zero intermediate frequency
The first port 1-1 of transceiver 3, restructural frequency converter 1 is connect with external radio-frequency signal, and second port 1-2 is for receiving first
Local oscillator input signals, third port 1-3 are connect with the first port 2-1 of restructural middle frequency link 2, restructural zero intermediate frequency transceiver
3 first port 3-1 is connect with the second port 2-2 of restructural middle frequency link 2, the second end of restructural zero intermediate frequency transceiver 3
Mouth 3-2 is used for receiving the second local oscillator input signals, third port 3-3 for being output to the outside baseband signal, the 4th port 3-4
In the externally input baseband signal of reception；
When signal receives, radiofrequency signal inputs restructural frequency converter 1 and is handled, and intermediate-freuqncy signal is obtained, subsequently into restructural
Middle frequency link 2, the intermediate-freuqncy signals of 2 pairs of restructural middle frequency link inputs amplify, filter and amplitude control after output to can weigh
Structure zero intermediate frequency transceiver 3, the signal and the second local oscillator that restructural zero intermediate frequency transceiver 3 transmits restructural middle frequency link 2 input
Signal carries out quadrature frequency conversion, obtains baseband signal and externally exports；
When signal emits, external baseband signal enters restructural zero intermediate frequency transceiver 3, carries out just with the second local oscillator input signals
Intermediate-freuqncy signal is obtained after handing in frequency conversion, subsequently into restructural middle frequency link 2, restructural middle frequency link 2 is by restructural zero intermediate frequency
After the intermediate-freuqncy signal that transceiver 3 transmits carries out amplitude control, filtering and amplification, export to restructural frequency converter 1, restructural frequency conversion
The signal that device 1 transmits restructural middle frequency link 2 is handled, and externally exports radiofrequency signal.
Specifically, the restructural frequency converter 1 includes the first switching switch S1, the second switching switch S2, the filter of the first band logical
Wave device BF1, the second bandpass filter BF2, the first two-way amplifier A1, the second two-way amplifier A2, frequency mixer M1 and first are low
The first port S1-1 of bandpass filter LP1, the first switching switch S1 are connect with external radio-frequency signal, second port S1-2 and first
The first port BF1-1 connection of bandpass filter BF1, the first port of third port S1-3 and the second bandpass filter (BF2)
BF2-1 connection, the second port BF1-2 of the first bandpass filter are connect with the first port A1-1 of the first two-way amplifier A1,
The second port BF2-2 of second bandpass filter BF2 is connect with the first port A2-1 of the second two-way amplifier A2, and first is two-way
The first port M1-1 of the second port A1-2 and frequency mixer M1 of amplifier A1 are connect, the second port of the second two-way amplifier A2
A2-2 is connect with the first port LP1-1 of the first low-pass filter LP1, the second port M1-2 of frequency mixer M1 and external first
Local oscillator input signals connection, third port M1-3 are connect with the first port S2-1 of the second switching switch S2, the first low-pass filtering
The second port LP1-2 of device LP1 is connect with the second port S2-2 of the second switching switch S2, the third end of the second switching switch S2
Mouth S2-3 is used for and restructural middle 2 transmission intermediate frequency signal of frequency link；
When signal receives, the first switching switch S1 carries out access switching to signal, wherein in the first access, signal successively passes through
After the filtering of first bandpass filter BF1, the amplification of the first two-way amplifier A1, it is mixed with the first local oscillator input signals,
Intermediate-freuqncy signal is obtained, and restructural middle frequency link 2 is output to by the second switching switch S2；In alternate path, signal is successively passed through
After crossing the filtering of the second bandpass filter BF2, the amplification of the second two-way amplifier A2, then by the first low-pass filter LP1 into
Row filtering obtains intermediate-freuqncy signal, and is output to restructural middle frequency link 2 by the second switching switch S2；
When signal emits, the intermediate-freuqncy signal that restructural middle frequency link 2 exports carries out access selection by the second switching switch S2,
In, in the first access, signal two-way is put with radiofrequency signal is obtained after the mixing of the first local oscillator input signals then in turn through first
After the amplification of big device A1, the filtering of the first bandpass filter BF1, pass through the first switching switch S1 output；In alternate path, signal
Successively pass through the filtering of the first low-pass filter LP1, the amplification of the second two-way amplifier A2, the filter of the second bandpass filter BF2
After wave, radiofrequency signal is obtained, and pass through the first switching switch S1 output.
Specifically, the restructural middle frequency link 2 includes third two-way amplifier A3, third bandpass filter BF3, second
The first port A3-1 of low-pass filter LP2 and numerical-control attenuator ATT1, third two-way amplifier A3 be used for it is described restructural
1 transmission intermediate frequency signal of frequency converter, second port A3-2 are connect with the first port BF3-1 of third bandpass filter BF3, third band
The first port LP2-1 of the second port BF3-2 and low-pass filter LP2 of bandpass filter BF3 are connect, second port LP2-2 with
The first port ATT1-1 connection of numerical-control attenuator ATT1, the second port ATT1-2 of numerical-control attenuator ATT1 be used for it is described can
Reconstruct 3 transmission intermediate frequency signal of zero intermediate frequency transceiver；
When signal receives, the intermediate-freuqncy signal transmitted from restructural frequency converter 1 successively passes through the amplification of third two-way amplifier A3, the
After the filtering of three bandpass filter BF3, the filtering of the second low-pass filter LP2, amplitude control is carried out by numerical-control attenuator ATT1
System, obtains intermediate-freuqncy signal and is output to restructural zero intermediate frequency transceiver 3；
When signal emits, the intermediate-freuqncy signal transmitted from restructural zero intermediate frequency transceiver 3 carries out amplitude by numerical-control attenuator ATT1
Control, then in turn through the filtering of the second low-pass filter LP2, the filtering of third bandpass filter LP3, third Bi-directional amplifier
Intermediate-freuqncy signal is obtained after the amplification of device A3, and is output to restructural frequency converter 1.
Specifically, the restructural zero intermediate frequency transceiver 3 includes third switching switch S3, the 4th switching switch S4, coupling
Device C1, the first IQ demodulator M2, the 2nd IQ demodulator M3, power splitter T1, third low-pass filter LP3, the 4th low-pass filter
LP4, the first baseband amplifier A4 and the second baseband amplifier A5, third switch switch S3 first port S3-1 for it is described
Restructural 2 transmission intermediate frequency signal of middle frequency link, second port S3-2 are connect with the first port S4-1 of the 4th switching switch S4, the
Three port S3-3 are connect with the first port C1-1 of coupler C1, the switching of the second port C1-2 of coupler C1 and the 4th switch S4
The port third port S4-3 connection, the 4th switching switch S4 second port S4-2 and the first IQ demodulator M2 first port
M2-1 connection, the third port C1-3 of coupler C1 are connect with the first port M3-1 of the 2nd IQ demodulator M3, the first IQ demodulation
The first port T1-1 of the third port M2-3 and power splitter T1 of device M2 are connect, the port second port T1-2 of power splitter T1 and the
The third port M3-3 connection of two IQ demodulator M3, the third port T1-3 of power splitter T1 and the second external local oscillator input signals
Connection, the second port M2-2 of the first IQ demodulator M2 are connect with the first port LP3-1 of third low-pass filter LP3, and second
The second port M3-2 of IQ demodulator M3 is connect with the first port LP4-1 of the 4th low-pass filter LP4, third low-pass filter
The second port LP3-2 of LP3 is connect with the first port A4-1 of the first baseband amplifier A4, and the of the 4th low-pass filter LP4
Two-port netwerk LP4-2 is connect with the first port A5-1 of the second baseband amplifier A5, the second port A4- of the first baseband amplifier A4
2 for being output to the outside baseband signal, and the second port A5-2 of the second baseband amplifier A5 is for receiving externally input base band
Signal；
When signal receives, the intermediate-freuqncy signal transmitted from restructural middle frequency link 2 passes sequentially through third switching switch S3 and the 4th and cuts
It changes switch S4 and enters receiving path, in receiving path, signal is first the same as the second local oscillator after power splitter T1 power distribution
Input signal carries out quadrature frequency conversion in the first IQ demodulator M2, then passes through the filtering of third low-pass filter LP3 and the
Baseband signal is externally exported after the amplification of one baseband amplifier A4；
When signal emits, externally input baseband signal passes sequentially through the amplification and the 4th low-pass filtering of the second baseband amplifier A5
After the filtering of device LP4, with the second local oscillator input signals after power splitter T1 power distribution in the second I/Q modulator M3 into
Row quadrature up-conversion obtains intermediate-freuqncy signal, switches switch S3 using third after then coupling by coupler C1, being output to can
Frequency link 2 in reconstruct；In addition, the intermediate-freuqncy signal after being coupled by coupler C1, which also passes through the 4th switching switch S4, enters the first IQ
Demodulator M2, to form transmitting and receives link from closed loop.
A kind of signal acceptance method based on the restructural receiving and transmitting front end of ultra wide band as described above comprising following steps:
(101) access switching is carried out to externally input signal by the first switching switch S1, if input signal is frequency variation signal,
The signal is then set successively to pass through the amplification of the filtering of the first bandpass filter BF1, the first two-way amplifier A1, then same first
Intermediate-freuqncy signal is obtained after vibration input signal mixing, and passes through the second switching switch S2 output；If input signal is through connect signal,
The signal is set successively to pass through the filtering of the second bandpass filter BF2, the amplification of the second two-way amplifier A2, the first low-pass filter
The filtering of LP1 obtains intermediate-freuqncy signal, and is output to restructural middle frequency link 2 by the second switching switch S2；
(102) intermediate-freuqncy signal that restructural frequency converter 1 transmits successively passes through third two-way amplifier in restructural middle frequency link 2
The amplification of A3, the filtering of third bandpass filter BF3 and the second low-pass filter LP2 filtering, then pass through numerical-control attenuator
ATT1 carries out amplitude control, output intermediate-freuqncy signal to restructural zero intermediate frequency transceiver 3；
(103) intermediate-freuqncy signal that restructural middle frequency link 2 transmits is opened in restructural zero intermediate frequency transceiver 3 by third switching
The access selection for closing the switching of S3 and the 4th switch S4 enters receiving path, with the second local oscillator after power splitter T1 power distribution
Input signal carries out quadrature frequency conversion in the first IQ demodulator M2, obtains baseband signal, then using third low-pass filtering
It is externally exported after the filtering of device LP3 and the amplification of the first baseband amplifier A4.
A kind of signal transmitting method based on the restructural receiving and transmitting front end of ultra wide band as described above comprising following steps:
(201) baseband signal is input in restructural zero intermediate frequency transceiver 3, successively by the second baseband amplifier A5 amplification,
After the filtering of 4th low-pass filter LP4, with the second local oscillator input signals after power splitter T1 power distribution in the 2nd IQ
Quadrature up-conversion is carried out in modulator M3, obtains intermediate-freuqncy signal, is opened after then being coupled by coupler C1 using third switching
S3 is closed, restructural middle frequency link 2 is output to；
(202) intermediate-freuqncy signal that restructural zero intermediate frequency transceiver 3 transmits passes through numerical-control attenuator in restructural middle frequency link 2
ATT1 carries out amplitude control, the filter of filtering and third bandpass filter BF3 then in turn through the second low-pass filter LP2
Wave obtains intermediate-freuqncy signal after the amplification using third two-way amplifier A3, and is output to restructural frequency converter 1；
(203) intermediate-freuqncy signal that restructural middle frequency link 2 transmits is in restructural frequency converter 1, by the second switching switch S2 into
The selection of row access inputs the signal with the first local oscillator if the intermediate-freuqncy signal that restructural middle frequency link 2 transmits is frequency variation signal
After signal mixing radiofrequency signal is obtained, then in turn through the amplification of the first two-way amplifier A1, the first bandpass filter BF1
After filtering, pass through the first switching switch S1 output；If the intermediate-freuqncy signal that restructural middle frequency link 2 transmits is through connect signal, make
The signal successively passes through the filtering of the first low-pass filter LP1, the amplification of the second two-way amplifier A2 and the second bandpass filter
The filtering of BF2 obtains radiofrequency signal, and passes through the first switching switch S1 output.
It has the advantages that compared with the background technology, the present invention
A) present invention uses superhet variable-frequency solutions and straight-through scheme combination zero intermediate frequency scheme, realizes 3GHz-18GHz ultra wide band
The broadband of double conversion is received and dispatched and the variable-frequency solutions reconstruct of the broadband of 3GHz-10GHz single-conversion transmitting-receiving.
B) present invention can make intermediate-freuqncy signal exist using Wideband Intermediate Frequency mode by using restructural bandpass filter
It is reconstructed in totally 4 sections of intermediate frequencies in 3GHz-10GHz.
C) present invention realizes that intermediate-freuqncy signal to the conversion of baseband signal, passes through restructural low-pass filtering using zero intermediate frequency technology
Device realizes the restructural of instant bandwidth technical indicator, realizes the technical indicators such as gain by gain controllable baseband amplifier
It is restructural.
D) present invention is supplied to zero by coupling firing energy using zero intermediate frequency transmitting and zero intermediate frequency received from loop technology
Medium frequency reception link realizes restructural zero intermediate frequency transceiver loop self calibration and self-checking function.
In short, 3GHz-18GHz radiofrequency signal may be implemented to baseband signal in the restructural receiving and transmitting front end of ultra wide band of the present invention
Transmitting-receiving transformation, while meeting the needs of microwave frequency band communication system broadband multifunctional reconfigurable, there is transmitting-receiving, conversion architecture etc.
Reconfigurable function, the restructural feature of the technical indicators such as gain, instant bandwidth are a kind of important improvements to the prior art.
Detailed description of the invention
Fig. 1 is a kind of functional block diagram of the restructural receiving and transmitting front end of ultra wide band in the embodiment of the present invention.
Fig. 2 is the functional block diagram of restructural frequency converter in Fig. 1.
Fig. 3 is the functional block diagram of restructural middle frequency link in Fig. 1.
Fig. 4 is the functional block diagram of restructural zero intermediate frequency transceiver in Fig. 1.
Specific embodiment
Below in conjunction with Detailed description of the invention, the present invention is described in further detail.
A kind of restructural receiving and transmitting front end of ultra wide band comprising restructural frequency converter 1, restructural middle frequency link 2, restructural zero
The first port 1-1 of medium-frequency receiving and sending device 3, restructural frequency converter 1 is connect with external radio-frequency signal, and second port 1-2 is for receiving
First local oscillator input signals, third port 1-3 are connect with the first port 2-1 of restructural middle frequency link 2, and restructural zero intermediate frequency is received
The first port 3-1 of hair device 3 is connect with the second port 2-2 of restructural middle frequency link 2, and the of restructural zero intermediate frequency transceiver 3
Two-port netwerk 3-2 is for receiving the second local oscillator input signals, and third port 3-3 is for being output to the outside baseband signal, the 4th port
3-4 is for receiving externally input baseband signal；
When signal receives, radiofrequency signal inputs restructural frequency converter 1 and is handled, and intermediate-freuqncy signal is obtained, subsequently into restructural
Middle frequency link 2, the intermediate-freuqncy signals of 2 pairs of restructural middle frequency link inputs amplify, filter and amplitude control after output to can weigh
Structure zero intermediate frequency transceiver 3, the signal and the second local oscillator that restructural zero intermediate frequency transceiver 3 transmits restructural middle frequency link 2 input
Signal carries out quadrature frequency conversion, obtains baseband signal and externally exports；
When signal emits, external baseband signal enters restructural zero intermediate frequency transceiver 3, carries out just with the second local oscillator input signals
Intermediate-freuqncy signal is obtained after handing in frequency conversion, subsequently into restructural middle frequency link 2, restructural middle frequency link 2 is by restructural zero intermediate frequency
After the intermediate-freuqncy signal that transceiver 3 transmits carries out amplitude control, filtering and amplification, export to restructural frequency converter 1, restructural frequency conversion
The signal that device 1 transmits restructural middle frequency link 2 is handled, and externally exports radiofrequency signal.
Specifically, the restructural frequency converter 1 includes the first switching switch S1, the second switching switch S2, the filter of the first band logical
Wave device BF1, the second bandpass filter BF2, the first two-way amplifier A1, the second two-way amplifier A2, frequency mixer M1 and first are low
The first port S1-1 of bandpass filter LP1, the first switching switch S1 are connect with external radio-frequency signal, second port S1-2 and first
The first port BF1-1 connection of bandpass filter BF1, the first port of third port S1-3 and the second bandpass filter (BF2)
BF2-1 connection, the second port BF1-2 of the first bandpass filter are connect with the first port A1-1 of the first two-way amplifier A1,
The second port BF2-2 of second bandpass filter BF2 is connect with the first port A2-1 of the second two-way amplifier A2, and first is two-way
The first port M1-1 of the second port A1-2 and frequency mixer M1 of amplifier A1 are connect, the second port of the second two-way amplifier A2
A2-2 is connect with the first port LP1-1 of the first low-pass filter LP1, the second port M1-2 of frequency mixer M1 and external first
Local oscillator input signals connection, third port M1-3 are connect with the first port S2-1 of the second switching switch S2, the first low-pass filtering
The second port LP1-2 of device LP1 is connect with the second port S2-2 of the second switching switch S2, the third end of the second switching switch S2
Mouth S2-3 is used for and restructural middle 2 transmission intermediate frequency signal of frequency link；
When signal receives, the first switching switch S1 carries out access switching to signal, wherein in the first access, signal successively passes through
After the filtering of first bandpass filter BF1, the amplification of the first two-way amplifier A1, it is mixed with the first local oscillator input signals,
Intermediate-freuqncy signal is obtained, and restructural middle frequency link 2 is output to by the second switching switch S2；In alternate path, signal is successively passed through
After crossing the filtering of the second bandpass filter BF2, the amplification of the second two-way amplifier A2, then by the first low-pass filter LP1 into
Row filtering obtains intermediate-freuqncy signal, and is output to restructural middle frequency link 2 by the second switching switch S2；
When signal emits, the intermediate-freuqncy signal that restructural middle frequency link 2 exports carries out access selection by the second switching switch S2,
In, in the first access, signal two-way is put with radiofrequency signal is obtained after the mixing of the first local oscillator input signals then in turn through first
After the amplification of big device A1, the filtering of the first bandpass filter BF1, pass through the first switching switch S1 output；In alternate path, signal
Successively pass through the filtering of the first low-pass filter LP1, the amplification of the second two-way amplifier A2, the filter of the second bandpass filter BF2
After wave, radiofrequency signal is obtained, and pass through the first switching switch S1 output.
Specifically, the restructural middle frequency link 2 includes third two-way amplifier A3, third bandpass filter BF3, second
The first port A3-1 of low-pass filter LP2 and numerical-control attenuator ATT1, third two-way amplifier A3 be used for it is described restructural
1 transmission intermediate frequency signal of frequency converter, second port A3-2 are connect with the first port BF3-1 of third bandpass filter BF3, third band
The first port LP2-1 of the second port BF3-2 and low-pass filter LP2 of bandpass filter BF3 are connect, second port LP2-2 with
The first port ATT1-1 connection of numerical-control attenuator ATT1, the second port ATT1-2 of numerical-control attenuator ATT1 be used for it is described can
Reconstruct 3 transmission intermediate frequency signal of zero intermediate frequency transceiver；
When signal receives, the intermediate-freuqncy signal transmitted from restructural frequency converter 1 successively passes through the amplification of third two-way amplifier A3, the
After the filtering of three bandpass filter BF3, the filtering of the second low-pass filter LP2, amplitude control is carried out by numerical-control attenuator ATT1
System, obtains intermediate-freuqncy signal and is output to restructural zero intermediate frequency transceiver 3；
When signal emits, the intermediate-freuqncy signal transmitted from restructural zero intermediate frequency transceiver 3 carries out amplitude by numerical-control attenuator ATT1
Control, then in turn through the filtering of the second low-pass filter LP2, the filtering of third bandpass filter LP3, third Bi-directional amplifier
Intermediate-freuqncy signal is obtained after the amplification of device A3, and is output to restructural frequency converter 1.
Specifically, the restructural zero intermediate frequency transceiver 3 includes third switching switch S3, the 4th switching switch S4, coupling
Device C1, the first IQ demodulator M2, the 2nd IQ demodulator M3, power splitter T1, third low-pass filter LP3, the 4th low-pass filter
LP4, the first baseband amplifier A4 and the second baseband amplifier A5, third switch switch S3 first port S3-1 for it is described
Restructural 2 transmission intermediate frequency signal of middle frequency link, second port S3-2 are connect with the first port S4-1 of the 4th switching switch S4, the
Three port S3-3 are connect with the first port C1-1 of coupler C1, the switching of the second port C1-2 of coupler C1 and the 4th switch S4
The port third port S4-3 connection, the 4th switching switch S4 second port S4-2 and the first IQ demodulator M2 first port
M2-1 connection, the third port C1-3 of coupler C1 are connect with the first port M3-1 of the 2nd IQ demodulator M3, the first IQ demodulation
The first port T1-1 of the third port M2-3 and power splitter T1 of device M2 are connect, the port second port T1-2 of power splitter T1 and the
The third port M3-3 connection of two IQ demodulator M3, the third port T1-3 of power splitter T1 and the second external local oscillator input signals
Connection, the second port M2-2 of the first IQ demodulator M2 are connect with the first port LP3-1 of third low-pass filter LP3, and second
The second port M3-2 of IQ demodulator M3 is connect with the first port LP4-1 of the 4th low-pass filter LP4, third low-pass filter
The second port LP3-2 of LP3 is connect with the first port A4-1 of the first baseband amplifier A4, and the of the 4th low-pass filter LP4
Two-port netwerk LP4-2 is connect with the first port A5-1 of the second baseband amplifier A5, the second port A4- of the first baseband amplifier A4
2 for being output to the outside baseband signal, and the second port A5-2 of the second baseband amplifier A5 is for receiving externally input base band
Signal；
When signal receives, the intermediate-freuqncy signal transmitted from restructural middle frequency link 2 passes sequentially through third switching switch S3 and the 4th and cuts
It changes switch S4 and enters receiving path, in receiving path, signal is first the same as the second local oscillator after power splitter T1 power distribution
Input signal carries out quadrature frequency conversion in the first IQ demodulator M2, then passes through the filtering of third low-pass filter LP3 and the
Baseband signal is externally exported after the amplification of one baseband amplifier A4；
When signal emits, externally input baseband signal passes sequentially through the amplification and the 4th low-pass filtering of the second baseband amplifier A5
After the filtering of device LP4, with the second local oscillator input signals after power splitter T1 power distribution in the second I/Q modulator M3 into
Row quadrature up-conversion obtains intermediate-freuqncy signal, switches switch S3 using third after then coupling by coupler C1, being output to can
Frequency link 2 in reconstruct；In addition, the intermediate-freuqncy signal after being coupled by coupler C1, which also passes through the 4th switching switch S4, enters the first IQ
Demodulator M2, to form transmitting and receives link from closed loop.
A kind of signal acceptance method based on the restructural receiving and transmitting front end of ultra wide band as described above comprising following steps:
(101) access switching is carried out to externally input signal by the first switching switch S1, if input signal is frequency variation signal,
The signal is then set successively to pass through the amplification of the filtering of the first bandpass filter BF1, the first two-way amplifier A1, then same first
Intermediate-freuqncy signal is obtained after vibration input signal mixing, and passes through the second switching switch S2 output；If input signal is through connect signal,
The signal is set successively to pass through the filtering of the second bandpass filter BF2, the amplification of the second two-way amplifier A2, the first low-pass filter
The filtering of LP1 obtains intermediate-freuqncy signal, and is output to restructural middle frequency link 2 by the second switching switch S2；
(102) intermediate-freuqncy signal that restructural frequency converter 1 transmits successively passes through third two-way amplifier in restructural middle frequency link 2
The amplification of A3, the filtering of third bandpass filter BF3 and the second low-pass filter LP2 filtering, then pass through numerical-control attenuator
ATT1 carries out amplitude control, output intermediate-freuqncy signal to restructural zero intermediate frequency transceiver 3；
(103) intermediate-freuqncy signal that restructural middle frequency link 2 transmits is opened in restructural zero intermediate frequency transceiver 3 by third switching
The access selection for closing the switching of S3 and the 4th switch S4 enters receiving path, with the second local oscillator after power splitter T1 power distribution
Input signal carries out quadrature frequency conversion in the first IQ demodulator M2, obtains baseband signal, then using third low-pass filtering
It is externally exported after the filtering of device LP3 and the amplification of the first baseband amplifier A4.
A kind of signal transmitting method based on the restructural receiving and transmitting front end of ultra wide band as described above comprising following steps:
(201) baseband signal is input in restructural zero intermediate frequency transceiver 3, successively by the second baseband amplifier A5 amplification,
After the filtering of 4th low-pass filter LP4, with the second local oscillator input signals after power splitter T1 power distribution in the 2nd IQ
Quadrature up-conversion is carried out in modulator M3, obtains intermediate-freuqncy signal, is opened after then being coupled by coupler C1 using third switching
S3 is closed, restructural middle frequency link 2 is output to；
(202) intermediate-freuqncy signal that restructural zero intermediate frequency transceiver 3 transmits passes through numerical-control attenuator in restructural middle frequency link 2
ATT1 carries out amplitude control, the filter of filtering and third bandpass filter BF3 then in turn through the second low-pass filter LP2
Wave obtains intermediate-freuqncy signal after the amplification using third two-way amplifier A3, and is output to restructural frequency converter 1；
(203) intermediate-freuqncy signal that restructural middle frequency link 2 transmits is in restructural frequency converter 1, by the second switching switch S2 into
The selection of row access inputs the signal with the first local oscillator if the intermediate-freuqncy signal that restructural middle frequency link 2 transmits is frequency variation signal
After signal mixing radiofrequency signal is obtained, then in turn through the amplification of the first two-way amplifier A1, the first bandpass filter BF1
After filtering, pass through the first switching switch S1 output；If the intermediate-freuqncy signal that restructural middle frequency link 2 transmits is through connect signal, make
The signal successively passes through the filtering of the first low-pass filter LP1, the amplification of the second two-way amplifier A2 and the second bandpass filter
The filtering of BF2 obtains radiofrequency signal, and passes through the first switching switch S1 output.
Specifically, referring to figs. 1 to Fig. 4, a kind of restructural receiving and transmitting front end of ultra wide band comprising restructural frequency converter 1, can
Frequency link 2, restructural zero intermediate frequency transceiver 3 in reconstruct.Fig. 1 is the functional block diagram of the present embodiment, and embodiment presses Fig. 1 connecting line
Road.The present embodiment works in microwave frequency band, and frequency range is 3GHz to 18GHz.
The effect of restructural frequency converter 1 is to complete the transformation of intermediate-freuqncy signal and radiofrequency signal, and Fig. 2 is restructural frequency converter 1
Schematic diagram, embodiment press Fig. 2 connection line.When reception, switching switch S1 carries out access switching to signal, and frequency variation signal passes through
Bandpass filter BF1 is filtered, after amplified by two-way amplifier A1, after the rear mixing with the first local oscillator input signals
To intermediate-freuqncy signal, exported after switching switch S2, through connect signal is filtered by bandpass filter BF2, after by two-way
Amplifier A2 is amplified, and is filtered afterwards by low-pass filter LP1, is obtained intermediate-freuqncy signal, defeated after switching switch S2
Out to restructural middle frequency link 2；When transmitting, the intermediate-freuqncy signal that restructural middle frequency link 2 exports is led to by switching switch S2
Road selection, frequency variation signal with the first local oscillator input signals mixing after obtain radiofrequency signal, after put by two-way amplifier A1
Greatly, be filtered by bandpass filter BF1, exported after switching switch S1, through connect signal by low-pass filter LP1 into
Row filtering, after amplified by two-way amplifier A2, be filtered afterwards by bandpass filter BF2, obtain radiofrequency signal, warp
It is exported after crossing switching switch S1.
The effect of restructural middle frequency link 2 is to complete the transmitting-receiving transformation of input terminal intermediate-freuqncy signal and output end intermediate-freuqncy signal,
Fig. 3 is the schematic diagram of restructural middle frequency link 2, and embodiment presses Fig. 3 connection line.When reception, exported from restructural frequency converter 1
Intermediate-freuqncy signal is after two-way amplifier A3 amplification, bandpass filter BF3 and low-pass filter LP2 filtering by numerical-control attenuator
ATT1 obtains intermediate-freuqncy signal after carrying out amplitude control, is output to restructural zero intermediate frequency transceiver 3；When transmitting, from restructural zero
Frequency transceiver 3 export intermediate-freuqncy signal by numerical-control attenuator ATT1 carry out amplitude control, after by low-pass filter LP2 and band
Bandpass filter LP3 filtering obtains intermediate-freuqncy signal after two-way amplifier A3 amplification, is output to restructural frequency converter 1.
The effect of restructural zero intermediate frequency transceiver 3 is to complete the transmitting-receiving transformation of intermediate-freuqncy signal and baseband signal, and Fig. 4 is can to weigh
The schematic diagram of structure zero intermediate frequency transceiver 3, embodiment press Fig. 4 connection line.When reception, believe from the intermediate frequency of restructural middle frequency link 2
Number, input switching switch S3, after by switching switch S4, with the second local oscillator input signals after power splitter T1 power distribution
Quadrature frequency conversion is carried out in IQ demodulator M2, obtains baseband signal, passes through low-pass filter LP3 filtering and baseband amplifier A4 afterwards
It is exported after amplification；When transmitting, baseband signal is filtered after being amplified by baseband amplifier A5 by low-pass filter LP4, rear with warp
The second local oscillator input signals after crossing power splitter T1 power distribution carry out quadrature up-conversion in I/Q modulator M3 and obtain intermediate-freuqncy signal,
Again by, using switching switch S3, being output to restructural middle frequency link 2 after coupler C1.In addition, in transmit state, passing through
Coupler C1 coupling after intermediate-freuqncy signal also pass through switching switch S4 enter IQ demodulator M2, thus will transmitting and receives link certainly
Closed loop.
The brief working principle of the present invention is as follows:
The present invention is by superhet variable-frequency solutions combination zero intermediate frequency variable-frequency solutions, using two-way amplifier, restructural bandpass filtering
Device, restructural low-pass amplifier, numerical-control attenuator, variable gain amplifier, in conjunction with zero intermediate frequency transmitting-receiving from technology of closed loop, design is real
A kind of restructural receiving and transmitting front end of ultra wide band is showed.Wherein, restructural frequency converter 1 converts radiofrequency signal and intermediate-freuqncy signal,
Restructural middle frequency link 2 converts the intermediate-freuqncy signal at both ends, restructural zero intermediate frequency pairs of transceivers frequency signal and base band letter
It number is converted.
The key technical indexes of the invention is as follows: reception rf frequency 3GHz~18GHz, and reception instant bandwidth 1MHz~
400MHz emits rf frequency 3GHz~18GHz, emits instant bandwidth 1MHz~400MHz, reception gain 20dB~50dB, hair
Penetrate gain 0dB~30dB, transmission power >=8dBm.
The present invention realizes the weight of the technical indicators such as the function remodelings such as transmitting-receiving, conversion architecture and gain, instant bandwidth
Structure may be implemented 3GHz-18GHz radiofrequency signal and convert to the transmitting-receiving of baseband signal, while it is wide to meet microwave frequency band communication system
The demand of frequency band multifunctional reconfigurable is particularly suitable for software radio in the field of communications, makes in cognition wireless receive-transmit system
With.
Claims (6)
1. a kind of restructural receiving and transmitting front end of ultra wide band, which is characterized in that including restructural frequency converter (1), restructural middle frequency link
(2), the first port (1-1) of restructural zero intermediate frequency transceiver (3), restructural frequency converter (1) is connect with external radio-frequency signal, the
Two-port netwerk (1-2) is for receiving the first local oscillator input signals, the first end of third port (1-3) and restructural middle frequency link (2)
Mouth (2-1) connection, the second port of the first port (3-1) of restructural zero intermediate frequency transceiver (3) and restructural middle frequency link (2)
(2-2) connection, the second port (3-2) of restructural zero intermediate frequency transceiver (3) is for receiving the second local oscillator input signals, third end
Mouth (3-3) is for being output to the outside baseband signal, and the 4th port (3-4) is for receiving externally input baseband signal；
When signal receives, radiofrequency signal inputs restructural frequency converter (1) and is handled, and obtains intermediate-freuqncy signal, subsequently into can weigh
Frequency link (2) in structure, restructural middle frequency link (2) amplifies the intermediate-freuqncy signal of input, filter and amplitude control after export
To restructural zero intermediate frequency transceiver (3), signal that restructural zero intermediate frequency transceiver (3) transmits restructural middle frequency link (2) with
Second local oscillator input signals carry out quadrature frequency conversion, obtain baseband signal and externally export；
When signal emits, external baseband signal enters restructural zero intermediate frequency transceiver (3), carries out with the second local oscillator input signals
Intermediate-freuqncy signal is obtained after quadrature up-conversion, subsequently into restructural middle frequency link (2), restructural middle frequency link (2) will be restructural
After the intermediate-freuqncy signal that zero intermediate frequency transceiver (3) transmits carries out amplitude control, filtering and amplification, restructural frequency converter (1) is given in output,
The signal that restructural frequency converter (1) transmits restructural middle frequency link (2) is handled, and externally exports radiofrequency signal.
2. the restructural receiving and transmitting front end of ultra wide band according to claim 1, which is characterized in that the restructural frequency converter (1)
Including the first switching switch (S1), the second switching switch (S2), the first bandpass filter (BF1), the second bandpass filter
(BF2), the first two-way amplifier (A1), the second two-way amplifier (A2), frequency mixer (M1) and the first low-pass filter (LP1),
The first port (S1-1) of first switching switch (S1) is connect with external radio-frequency signal, and second port (S1-2) and the first band logical are filtered
The first port (BF1-1) of wave device (BF1) connects, the first port of third port (S1-3) and the second bandpass filter (BF2)
(BF2-1) it connects, the second port (BF1-2) of the first bandpass filter and the first port (A1- of the first two-way amplifier (A1)
1) it connects, the second port (BF2-2) of the second bandpass filter (BF2) and the first port (A2- of the second two-way amplifier (A2)
1) it connecting, the second port (A1-2) of the first two-way amplifier (A1) is connect with the first port (M1-1) of frequency mixer (M1), the
The second port (A2-2) of two two-way amplifiers (A2) is connect with the first port (LP1-1) of the first low-pass filter (LP1), is mixed
The second port (M1-2) of frequency device (M1) is connect with the first external local oscillator input signals, third port (M1-3) and the second switching
First port (S2-1) connection of (S2) is switched, the second port (LP1-2) of the first low-pass filter (LP1) is opened with the second switching
Second port (S2-2) connection of (S2) is closed, the third port (S2-3) of the second switching switch (S2) is used for and restructural intermediate frequency chain
Road (2) transmission intermediate frequency signal；
When signal receives, the first switching switch (S1) carries out access switching to signal, wherein in the first access, signal is successively passed through
After crossing the filtering of the first bandpass filter (BF1), the amplification of the first two-way amplifier (A1), carried out with the first local oscillator input signals
Mixing obtains intermediate-freuqncy signal, and is output to restructural middle frequency link (2) by the second switching switch (S2)；In alternate path, letter
Number successively after the filtering of the second bandpass filter (BF2), the amplification of the second two-way amplifier (A2), then pass through the first low pass
Filter (LP1) is filtered, and obtains intermediate-freuqncy signal, and be output to restructural middle frequency link by the second switching switch (S2)
(2)；
When signal emits, the intermediate-freuqncy signal of restructural middle frequency link (2) output carries out access choosing by the second switching switch (S2)
It selects, wherein in the first access, signal is with radiofrequency signal is obtained after the mixing of the first local oscillator input signals, then in turn through first
After the amplification of two-way amplifier (A1), the filtering of the first bandpass filter (BF1), pass through the first switching switch (S1) output；The
In two accesses, signal successively passes through the filtering of the first low-pass filter (LP1), the amplification of the second two-way amplifier (A2), second
After the filtering of bandpass filter (BF2), radiofrequency signal is obtained, and pass through the first switching switch (S1) output.
3. the restructural receiving and transmitting front end of ultra wide band according to claim 2, which is characterized in that the restructural middle frequency link
It (2) include third two-way amplifier (A3), third bandpass filter (BF3), the second low-pass filter (LP2) and numerical-control attenuator
(ATT1), the first port (A3-1) of third two-way amplifier (A3) is used to believe with restructural frequency converter (1) transmission intermediate frequency
Number, second port (A3-2) is connect with the first port (BF3-1) of third bandpass filter (BF3), third bandpass filter
(BF3) second port (BF3-2) is connect with the first port (LP2-1) of low-pass filter (LP2), second port (LP2-2)
It is connect with the first port (ATT1-1) of numerical-control attenuator (ATT1), the second port (ATT1-2) of numerical-control attenuator (ATT1) is used
In with restructural zero intermediate frequency transceiver (3) the transmission intermediate frequency signal；
When signal receives, the intermediate-freuqncy signal transmitted from restructural frequency converter (1) successively passes through putting for third two-way amplifier (A3)
Greatly, after the filtering of third bandpass filter (BF3), the filtering of the second low-pass filter (LP2), pass through numerical-control attenuator (ATT1)
Carry out amplitude control obtains intermediate-freuqncy signal and is output to restructural zero intermediate frequency transceiver (3)；
When signal emits, the intermediate-freuqncy signal transmitted from restructural zero intermediate frequency transceiver (3) is carried out by numerical-control attenuator (ATT1)
Amplitude control, then in turn through the filtering of the second low-pass filter (LP2), the filtering of third bandpass filter (LP3), third
Intermediate-freuqncy signal is obtained after the amplification of two-way amplifier (A3), and is output to restructural frequency converter (1).
4. the restructural receiving and transmitting front end of ultra wide band according to claim 3, which is characterized in that the restructural zero intermediate frequency transmitting-receiving
Device (3) includes third switching switch S3, the 4th switching switch S4, coupler (C1), the first IQ demodulator (M2), the 2nd IQ demodulation
Device (M3), power splitter (T1), third low-pass filter (LP3), the 4th low-pass filter (LP4), the first baseband amplifier (A4)
It is used for and the restructural middle frequency link with the first port (S3-1) of the second baseband amplifier (A5), third switching switch (S3)
(2) transmission intermediate frequency signal, second port (S3-2) are connect with the first port (S4-1) of the 4th switching switch (S4), third port
(S3-3) it is connect with the first port (C1-1) of coupler (C1), the second port (C1-2) of coupler (C1) is opened with the 4th switching
Close the third port port (S4-3) connection of (S4), the second port (S4-2) and the first IQ demodulator of the 4th switching switch (S4)
(M2) first port (M2-1) connection, the third port (C1-3) of coupler (C1) and the first end of the 2nd IQ demodulator (M3)
Mouth (M3-1) connection, the third port (M2-3) of the first IQ demodulator (M2) and the first port (T1-1) of power splitter (T1) connect
It connects, the second port port (T1-2) of power splitter (T1) is connect with the third port (M3-3) of the 2nd IQ demodulator (M3), function point
The third port (T1-3) of device (T1) is connect with the second external local oscillator input signals, the second port of the first IQ demodulator (M2)
(M2-2) it is connect with the first port (LP3-1) of third low-pass filter (LP3), the second port of the 2nd IQ demodulator (M3)
(M3-2) it is connect with the first port (LP4-1) of the 4th low-pass filter (LP4), the second end of third low-pass filter (LP3)
Mouth (LP3-2) is connect with the first port (A4-1) of the first baseband amplifier (A4), the second end of the 4th low-pass filter (LP4)
Mouth (LP4-2) is connect with the first port (A5-1) of the second baseband amplifier (A5), the second end of the first baseband amplifier (A4)
Mouth (A4-2) is for being output to the outside baseband signal, and the second port (A5-2) of the second baseband amplifier (A5) is for receiving outside
The baseband signal of input；
When signal receives, the intermediate-freuqncy signal transmitted from restructural middle frequency link (2) passes sequentially through third switching switch (S3) and the
Four switching switches (S4) enter receiving path, and in receiving path, signal is first the same as after power splitter (T1) power distribution
Second local oscillator input signals carry out quadrature frequency conversion in the first IQ demodulator (M2), then pass through third low-pass filter
(LP3) baseband signal is externally exported after the amplification of filtering and the first baseband amplifier (A4)；
When signal emits, externally input baseband signal passes sequentially through the amplification and the 4th low pass filtered of the second baseband amplifier (A5)
After the filtering of wave device (LP4), with the second local oscillator input signals after power splitter (T1) power distribution in the second I/Q modulator
(M3) quadrature up-conversion is carried out in, obtains intermediate-freuqncy signal, is switched after then being coupled by coupler (C1) using third and is switched
(S3), it is output to restructural middle frequency link (2)；In addition, the intermediate-freuqncy signal after being coupled by coupler (C1) also passes through the 4th and cuts
Switch (S4) is changed into the first IQ demodulator (M2), to form transmitting and receives link from closed loop.
5. a kind of signal acceptance method based on the restructural receiving and transmitting front end of ultra wide band as claimed in claim 4, which is characterized in that packet
Include following steps:
(101) access switching is carried out to externally input signal by the first switching switch (S1), if input signal is frequency conversion letter
Number, then so that the signal is successively passed through the amplification of the filtering of the first bandpass filter (BF1), the first two-way amplifier (A1), then
Intermediate-freuqncy signal is obtained after being mixed with the first local oscillator input signals, and passes through the second switching switch (S2) output；If input signal is
Through connect signal, then make that the signal successively passes through the filtering of the second bandpass filter (BF2), the second two-way amplifier (A2) is put
Greatly, the filtering of the first low-pass filter (LP1), obtains intermediate-freuqncy signal, and is output to by the second switching switch (S2) restructural
Middle frequency link (2)；
(102) intermediate-freuqncy signal that restructural frequency converter (1) is transmitted successively is put by third is two-way in restructural middle frequency link (2)
The filtering of the amplification of device (A3), the filtering of third bandpass filter (BF3) and the second low-pass filter (LP2) greatly, then passes through
Numerical-control attenuator (ATT1) carries out amplitude control, output intermediate-freuqncy signal to restructural zero intermediate frequency transceiver (3)；
(103) intermediate-freuqncy signal that restructural middle frequency link (2) is transmitted is cut in restructural zero intermediate frequency transceiver (3) by third
The access selection for changing switch (S3) and the 4th switching switch (S4) enters receiving path, with after power splitter (T1) power distribution
The second local oscillator input signals quadrature frequency conversion is carried out in the first IQ demodulator (M2), obtain baseband signal, then using
It is externally exported after the filtering of third low-pass filter (LP3) and the amplification of the first baseband amplifier (A4).
6. a kind of signal transmitting method based on the restructural receiving and transmitting front end of ultra wide band as claimed in claim 4, which is characterized in that packet
Include following steps:
(201) baseband signal is input in restructural zero intermediate frequency transceiver (3), successively putting by the second baseband amplifier (A5)
Greatly, after the filtering of the 4th low-pass filter (LP4), exist with the second local oscillator input signals after power splitter (T1) power distribution
Carry out quadrature up-conversion in second I/Q modulator (M3), obtain intermediate-freuqncy signal, after then being coupled by coupler (C1) using
Third switching switch (S3), is output to restructural middle frequency link (2)；
(202) intermediate-freuqncy signal that restructural zero intermediate frequency transceiver (3) is transmitted passes through numerical control attenuation in restructural middle frequency link (2)
Device (ATT1) carries out amplitude control, filtering and third bandpass filter then in turn through the second low-pass filter (LP2)
(BF3) filtering obtains intermediate-freuqncy signal after the amplification using third two-way amplifier (A3), and is output to restructural frequency converter
(1)；
(203) intermediate-freuqncy signal that restructural middle frequency link (2) is transmitted is switched in restructural frequency converter (1) by the second switching
(S2) access selection is carried out, if the intermediate-freuqncy signal that restructural middle frequency link (2) transmits is frequency variation signal, by the signal with first
Radiofrequency signal is obtained after local oscillator input signals mixing, amplification, the first band logical then in turn through the first two-way amplifier (A1)
After the filtering of filter (BF1), pass through the first switching switch (S1) output；If the intermediate frequency letter that restructural middle frequency link (2) is transmitted
Number it is through connect signal, then the signal is made successively to pass through the filtering of the first low-pass filter (LP1), the second two-way amplifier (A2)
The filtering of amplification and the second bandpass filter (BF2) obtains radiofrequency signal, and passes through the first switching switch (S1) output.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912569A (en) * | 2019-12-11 | 2020-03-24 | 重庆会凌电子新技术有限公司 | Ultrashort wave broadband transceiver |
| CN111224622A (en) * | 2019-11-21 | 2020-06-02 | 中电科仪器仪表有限公司 | Noise signal generating device and method with adjustable center frequency and bandwidth |
| CN112600572A (en) * | 2021-03-03 | 2021-04-02 | 理工全盛(北京)科技有限公司 | Receiver, receiving method and related equipment |
| CN113644429A (en) * | 2021-08-10 | 2021-11-12 | 合肥工业大学 | Planar microwave passive device capable of reconstructing four microwave functions |
| CN114039619A (en) * | 2021-09-28 | 2022-02-11 | 三维通信股份有限公司 | Zero intermediate frequency radio frequency front end circuit, system, radio frequency unit protection method and medium |
| CN116094466A (en) * | 2023-04-12 | 2023-05-09 | 成都锐新科技有限公司 | Broadband down converter |
| WO2023216148A1 (en) * | 2022-05-11 | 2023-11-16 | 华为技术有限公司 | Electronic device and communication system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101242158A (en) * | 2008-03-07 | 2008-08-13 | 华中科技大学 | A configurable and reconstructable dynamic frequency mixer |
| CN101588639A (en) * | 2009-06-30 | 2009-11-25 | 东南大学 | The reconfigurable system that the 4th third-generation mobile communication and impulse radio ultra-wideband are integrated |
| CN101908900A (en) * | 2010-07-07 | 2010-12-08 | 复旦大学 | Analog baseband link of radio-frequency receiver compatible with ultra wide band international standard and Chinese standard |
| CN101944924A (en) * | 2010-09-30 | 2011-01-12 | 东南大学 | Broadband MIMO radio frequency transceiving system for next-generation wireless communication network |
| CN102916720A (en) * | 2012-10-16 | 2013-02-06 | 清华大学 | Reconfigurable multi-frequency-range transceiver radio-frequency front end |
-
2019
- 2019-02-27 CN CN201910143805.4A patent/CN109802692B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101242158A (en) * | 2008-03-07 | 2008-08-13 | 华中科技大学 | A configurable and reconstructable dynamic frequency mixer |
| CN101588639A (en) * | 2009-06-30 | 2009-11-25 | 东南大学 | The reconfigurable system that the 4th third-generation mobile communication and impulse radio ultra-wideband are integrated |
| CN101908900A (en) * | 2010-07-07 | 2010-12-08 | 复旦大学 | Analog baseband link of radio-frequency receiver compatible with ultra wide band international standard and Chinese standard |
| CN101944924A (en) * | 2010-09-30 | 2011-01-12 | 东南大学 | Broadband MIMO radio frequency transceiving system for next-generation wireless communication network |
| CN102916720A (en) * | 2012-10-16 | 2013-02-06 | 清华大学 | Reconfigurable multi-frequency-range transceiver radio-frequency front end |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111224622A (en) * | 2019-11-21 | 2020-06-02 | 中电科仪器仪表有限公司 | Noise signal generating device and method with adjustable center frequency and bandwidth |
| CN111224622B (en) * | 2019-11-21 | 2023-07-25 | 中电科思仪科技股份有限公司 | Noise signal generating device and method with adjustable center frequency and bandwidth |
| CN110912569A (en) * | 2019-12-11 | 2020-03-24 | 重庆会凌电子新技术有限公司 | Ultrashort wave broadband transceiver |
| CN112600572A (en) * | 2021-03-03 | 2021-04-02 | 理工全盛(北京)科技有限公司 | Receiver, receiving method and related equipment |
| CN112600572B (en) * | 2021-03-03 | 2021-06-04 | 理工全盛(北京)科技有限公司 | Receiver, receiving method and related equipment |
| CN113644429A (en) * | 2021-08-10 | 2021-11-12 | 合肥工业大学 | Planar microwave passive device capable of reconstructing four microwave functions |
| CN114039619A (en) * | 2021-09-28 | 2022-02-11 | 三维通信股份有限公司 | Zero intermediate frequency radio frequency front end circuit, system, radio frequency unit protection method and medium |
| WO2023216148A1 (en) * | 2022-05-11 | 2023-11-16 | 华为技术有限公司 | Electronic device and communication system |
| CN116094466A (en) * | 2023-04-12 | 2023-05-09 | 成都锐新科技有限公司 | Broadband down converter |
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