CN109462414A - A kind of 18-30GHz front end receiver component - Google Patents
A kind of 18-30GHz front end receiver component Download PDFInfo
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- CN109462414A CN109462414A CN201811151932.0A CN201811151932A CN109462414A CN 109462414 A CN109462414 A CN 109462414A CN 201811151932 A CN201811151932 A CN 201811151932A CN 109462414 A CN109462414 A CN 109462414A
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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
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
-
- 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
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
- H04B1/1036—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal with automatic suppression of narrow band noise or interference, e.g. by using tuneable notch filters
-
- 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
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/12—Neutralising, balancing, or compensation arrangements
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Superheterodyne Receivers (AREA)
Abstract
The invention discloses a kind of 18-30GHz front end receiver components.The receiving unit includes front ends of millimeter waves circuit, local oscillation circuit, frequency mixer, intermediate-frequency circuit, SDLVA detecting circuit；The front ends of millimeter waves circuit includes the sequentially connected coupler in 4 tunnels, first order switch, the first low-noise amplifier, second level switch, high-pass filter, the second low-noise amplifier, front end low-pass filter and programmable attenuator；Local oscillation circuit includes sequentially connected phase locked source, the first bandpass filter, first order frequency multiplier, the second bandpass filter, four road power splitter of local oscillator, and 4 output ends of four road power splitter of local oscillator are sequentially connected second level frequency multiplier and third bandpass filter respectively；Every road intermediate-frequency circuit includes sequentially connected intermediate frequency low-noise amplifier and mid-frequency low-pass filter；Every road SDLVA detecting circuit includes sequentially connected SDLVA and operational amplification circuit.The present invention has the advantages that integrated level is high, operating temperature range is wide, and application prospect is extensive.
Description
Technical field
The invention belongs to millimeter-wave technology field, especially a kind of 18-30GHz front end receiver component.
Background technique
Processing with the rapid development in the fields such as millimetre-wave attenuator, radar and electronic countermeasure, to mm wave RF signal
It is required that also higher and higher, especially increasingly to the demand of the millimeter wave logarithm video detection component of Larger Dynamic range, high integration
Increase.
Frequency microwave signal lower for frequency, usual way are using suitable detection device that radiofrequency signal is straight
Switch through and become vision signal, in order to Digital Signal Processing.It is directly suitable since its frequency is higher but for millimeter wave
Detection device for millimeter-wave signal is extremely rare, and the millimeter wave detection component that can satisfy the market demand is caused seriously to lack
It is weary.
Summary of the invention
The 18-30GHz millimeter wave for the video detection function with millimeter-wave signal that the purpose of the present invention is to provide a kind of
Front end receiver component.
The technical solution for realizing the aim of the invention is as follows: a kind of 18-30GHz front end receiver component, including before millimeter wave
Terminal circuit, local oscillation circuit, frequency mixer, intermediate-frequency circuit, SDLVA detecting circuit；
The front ends of millimeter waves circuit includes the sequentially connected coupler in 4 tunnels, first order switch, the first low noise amplification
Device, second level switch, high-pass filter, the second low-noise amplifier, front end low-pass filter and programmable attenuator；
The local oscillation circuit includes sequentially connected phase locked source, the first bandpass filter, first order frequency multiplier, the second band logical
Filter, four road power splitter of local oscillator, 4 output ends of four road power splitter of local oscillator are sequentially connected second level frequency multiplier and third respectively
Bandpass filter, wherein phase locked source includes VCO and PLL；
The programmable attenuator is respectively connected to an input terminal of corresponding frequency mixer all the way, the third band logical in local oscillation circuit
Filter is respectively connected to another input terminal of corresponding frequency mixer all the way；The output end of No. 4 frequency mixers is respectively connected to intermediate frequency all the way
Circuit；
Every road intermediate-frequency circuit includes sequentially connected intermediate frequency low-noise amplifier and mid-frequency low-pass filter；Every road SDLVA
Detecting circuit includes sequentially connected SDLVA and operational amplification circuit；The output end of mid-frequency low-pass filter accesses SDLVA, often
The operational amplification circuit on road sends output signal.
Further, the 18-30GHz front end receiver component, further includes self-checking circuit, the self-checking circuit includes suitable
The four road power splitter of self-test low-noise amplifier and self-test of secondary connection；
Point-frequency signal within the scope of external input 18-30GHz is inputted into self-checking circuit, is amplified through self-test low-noise amplifier
Afterwards, four road 18-30GHz millimeter waves are divided by four road power splitter of self-test, enter four mixing after front ends of millimeter waves circuit respectively
Device；Externally input 100MHz reference signal is inputted into local oscillation circuit, enters four mixing after being divided into four road 32GHz local oscillation signals
Device；It is mixed under the 32GHz local oscillation signal for signal and the local oscillation circuit input that four frequency mixers respectively input front ends of millimeter waves circuit
After frequency, become the intermediate-freuqncy signal of 2-14GHz, enters SDLVA detecting circuit by intermediate-frequency circuit and carry out detection, to check primary path
It whether normal works.
Further, the 18-30GHz front end receiver component further includes shielding box body, is provided with upper layer cavity under
Layer cavity, the front ends of millimeter waves circuit, intermediate-frequency circuit, frequency mixer and SDLVA detecting circuit are placed in the cavity of upper layer, described
Local oscillation circuit, self-checking circuit are placed in lower layer's cavity.
Further, the first order switch, the first low-noise amplifier, second level switch, the second low-noise amplifier,
Programmable attenuator, intermediate frequency low-noise amplifier, first order frequency multiplier, second level frequency multiplier and self-test low-noise amplifier are GaAs
The mmic chip of technique.
Further, first order switch, the first low-noise amplifier and second level switch in the front ends of millimeter waves circuit
It is sequentially connected with, while first order switch, second level switch are directly connected to, and constitute dynamic select control.
Further, the SDLVA detecting circuit carries out temperature-compensating using temperature sensor.
Further, the coupler, front end low-pass filter, mid-frequency low-pass filter, the first bandpass filter, second
Bandpass filter, third bandpass filter, four road power splitter of local oscillator and four road power splitter of self-test are manufactured using micro belt process.
Further, the four road power splitter of self-test, four road power splitter of local oscillator and coupler, for realizing four road millimeter waves
The logarithm video detection function and self-checking function of signal, and four road video amplitudes are consistent.
Compared with prior art, the present invention having following remarkable advantage: (1) using down-conversion technique, avoid to milli
Metric wave signal direct detection has the characteristics that broadband, Larger Dynamic range, low noise；(2) four road millimeter-wave signals are realized simultaneously
Logarithm video detection function and self-checking function, and four road video amplitude consistency are high；(3) all components and circuit are adopted
Production assembly is carried out with advanced micro-group dress hybrid integration technology, reduces circuit size；(4) have it is small in size, performance is stable,
The high feature of indicator consilience, suitable for all kinds of microwave and millimeter wave systems such as millimetre-wave radar, electronic countermeasure.
Detailed description of the invention
Fig. 1 is the electrical block diagram of 18-30GHz front end receiver component of the present invention；
In figure, 1, coupler；2, the first order switchs；3, the first low-noise amplifier；4, the second level switchs；5, high-pass filtering
Device；6, the second low-noise amplifier；7, front end low-pass filter；8, programmable attenuator；9, frequency mixer；10, intermediate frequency low noise is put
Big device；11, mid-frequency low-pass filter；12,SDLVA；13, operational amplification circuit；14, phase locked source；15, the first bandpass filter；
16, first order frequency multiplier；17, the second bandpass filter；18, four road power splitter of local oscillator；19, second level frequency multiplier；20, third band
Bandpass filter；21, self-test low-noise amplifier；22, four road power splitter of self-test.
Specific embodiment
In conjunction with Fig. 1,18-30GHz front end receiver component of the present invention, including front ends of millimeter waves circuit, local oscillation circuit, frequency mixer
9, intermediate-frequency circuit, SDLVA detecting circuit；
The front ends of millimeter waves circuit includes the sequentially connected coupler 1 in 4 tunnels, first order switch 2, the first low noise amplification
Device 3, second level switch 4, high-pass filter 5, the second low-noise amplifier 6, front end low-pass filter 7 and programmable attenuator 8；
The local oscillation circuit includes sequentially connected phase locked source 14, the first bandpass filter 15, first order frequency multiplier 16,
Two band-pass filter 17, four road power splitter 18 of local oscillator, 4 output ends of four road power splitter 18 of local oscillator are sequentially connected the second level respectively
Frequency multiplier 19 and third bandpass filter 20, wherein phase locked source 14 includes VCO and PLL；
The programmable attenuator 8 is respectively connected to an input terminal of corresponding frequency mixer 9 all the way, the third band in local oscillation circuit
Bandpass filter 20 is respectively connected to another input terminal of corresponding frequency mixer 9 all the way；The output end of No. 4 frequency mixers 9 is respectively connected to one
Road intermediate-frequency circuit；
Every road intermediate-frequency circuit includes sequentially connected intermediate frequency low-noise amplifier 10 and mid-frequency low-pass filter 11；Every road
SDLVA detecting circuit includes sequentially connected SDLVA12 and operational amplification circuit 13；The output of mid-frequency low-pass filter 11 terminates
Enter SDLVA12, the operational amplification circuit 13 on every road sends output signal.
As a kind of specific example, the 18-30GHz front end receiver component, further includes self-checking circuit, the self-test electricity
Road includes four road power splitter 22 of sequentially connected self-test low-noise amplifier 21 and self-test；
Point-frequency signal within the scope of external input 18-30GHz is inputted into self-checking circuit, is put through self-test low-noise amplifier 21
After big, by four road power splitter of self-test, 22 Fen Wei, tetra- road 18-30GHz millimeter wave, enter four after front ends of millimeter waves circuit respectively
Frequency mixer 9；Externally input 100MHz reference signal is inputted into local oscillation circuit, enters four after being divided into four road 32GHz local oscillation signals
A frequency mixer 9；The 32GHz local oscillator for signal and the local oscillation circuit input that four frequency mixers 9 respectively input front ends of millimeter waves circuit
After being mixed under signal, become the intermediate-freuqncy signal of 2-14GHz, enters SDLVA detecting circuit by intermediate-frequency circuit and carry out detection, to examine
Whether normal look into primary path work.
As a kind of specific example, the 18-30GHz front end receiver component further includes shielding box body, is provided with upper layer
Cavity and lower layer's cavity, the front ends of millimeter waves circuit, intermediate-frequency circuit, frequency mixer 9 and SDLVA detecting circuit are placed on upper layer sky
Intracavitary, the local oscillation circuit, self-checking circuit are placed in lower layer's cavity.
As a kind of specific example, the first order switch 2, the first low-noise amplifier 3, second level switch 4, second are low
Noise amplifier 6, programmable attenuator 8, intermediate frequency low-noise amplifier 10, first order frequency multiplier 16, second level frequency multiplier 19 and from
Examine the mmic chip that low-noise amplifier 21 is GaAs technique.
As a kind of specific example, first order switch 2,3 and of the first low-noise amplifier in the front ends of millimeter waves circuit
Second level switch 4 is sequentially connected with, while first order switch 2, second level switch 4 are directly connected to, and constitutes dynamic select control.
As a kind of specific example, the SDLVA detecting circuit carries out temperature-compensating using temperature sensor.
As a kind of specific example, the coupler 1, front end low-pass filter 7, mid-frequency low-pass filter 11, first band
Bandpass filter 15, the second bandpass filter 17, four road power splitter of third bandpass filter 20, four road power splitter 18 of local oscillator and self-test
22 are manufactured using micro belt process.
As a kind of specific example, the four road power splitter 22 of self-test, four road power splitter 18 of local oscillator and coupler 1 are used for
Realize the logarithm video detection function and self-checking function of four road millimeter-wave signals, and four road video amplitudes are consistent.
The present invention will be further described in the following with reference to the drawings and specific embodiments.
Embodiment
In conjunction with Fig. 1,18-30GHz front end receiver component of the present invention, including self-checking circuit, front ends of millimeter waves circuit, local oscillator electricity
Road, frequency mixer 9, intermediate-frequency circuit, SDLVA detecting circuit and shielding box body；The shielding box body, is provided with upper layer cavity and lower layer
Cavity, the front ends of millimeter waves circuit, intermediate-frequency circuit, frequency mixer 9 and SDLVA detecting circuit are placed in the cavity of upper layer, described
Local oscillation circuit, self-checking circuit are placed in lower layer's cavity.
The self-checking circuit includes four road power splitter 22 of self-test low-noise amplifier 21 and self-test；The front ends of millimeter waves electricity
Road includes sequentially connected coupler 1, first order switch 2, the first low-noise amplifier 3, second level switch 4, high-pass filter
5, the second low-noise amplifier 6, front end low-pass filter 7 and programmable attenuator 8, wherein first order switch 2, the first low noise are put
Big device 3 and second level switch 4 constitute dynamic select control；The local oscillation circuit includes sequentially connected phase locked source 14, first band
Bandpass filter 15, first order frequency multiplier 16, the second bandpass filter 17, four road power splitter 18 of local oscillator, 19 and of second level frequency multiplier
Third bandpass filter 20, wherein phase locked source 14 includes VCO and PLL；The intermediate-frequency circuit includes sequentially connected intermediate frequency low noise
Acoustic amplifier 10, mid-frequency low-pass filter 11；The SDLVA detecting circuit includes sequentially connected SDLVA12 and operation amplifier
The detecting circuit of circuit 13, the SDLVA carries out temperature-compensating using temperature sensor；Journey in the front ends of millimeter waves circuit
Intermediate frequency low-noise amplifier 10 in control attenuator 8 and the intermediate-frequency circuit is connected with the frequency mixer 9 respectively；
The point-frequency signal of optional frequency within the scope of external input 18-30GHz is inputted into self-checking circuit, is put through self-test low noise
After big device 21 amplifies, by four road power splitter of self-test, 22 Fen Wei, tetra- road 18-30GHz millimeter wave, four road front ends of millimeter waves are respectively enterd
Circuit is low by coupler 1, first order switch 2, the first low-noise amplifier 3, second level switch 4, high-pass filter 5, second
Noise amplifier 6, front end low-pass filter 7 and programmable attenuator 8 enter four frequency mixers 9；What local oscillation circuit was input from the outside
100MHz reference signal enters phase locked source 14, generates the point-frequency signal of 8GHz, passes through the first bandpass filter 15, first order frequency multiplication
After device 16, the second bandpass filter 17, by the pure 16GHz signal in tetra- tunnels local oscillator four road power splitters, 18 Fen Wei, using second
32GHz local oscillation signal is provided after grade frequency multiplier 19 and third bandpass filter 20 to four frequency mixers 9；Four frequency mixers 9 will milli
After being mixed under the 32GHz local oscillation signal that the signal of metric wave front-end circuit input is inputted with local oscillation circuit, become the intermediate frequency of 2-14GHz
Signal enters SDLVA detection electricity into intermediate-frequency circuit after intermediate frequency low-noise amplifier 10 and mid-frequency low-pass filter 11
Road exports vision signal after SDLVA12 and operational amplification circuit 13 to check whether primary path work is normal.In addition, group
Part can control signal by TTL and be extended to video dynamic range.
The four road power splitter 22 of self-test, four road power splitter 18 of local oscillator and coupler 1, for realizing four road millimeter-wave signals
Logarithm video detection function and self-checking function, and four road video amplitude consistency are high.
It is the first order switch 2, the first low-noise amplifier 3, second level switch 4, the second low-noise amplifier 6, program-controlled
Attenuator 8, intermediate frequency low-noise amplifier 10, first order frequency multiplier 16, second level frequency multiplier 19 and self-test low-noise amplifier 21
For the mmic chip of GaAs technique, input, output-resistor is 50 ohm of standardization device, does not need excessively to consider that matching is asked
Topic.The coupler 1, front end low-pass filter 7, mid-frequency low-pass filter 11, the first bandpass filter 15, the second bandpass filtering
Device 17, third bandpass filter 20, four road power splitter 18 of local oscillator and four road power splitter 22 of self-test are manufactured using micro belt process.
In conclusion using mixing schemes, to be transformed into frequency relatively low by 18-30GHz millimeter-wave signal for invention components
Frequency microwave signal, then by SDLVA detecting circuit to low frequency frequency microwave signal carry out detection, be converted into video letter
Number, to realize the video detection function to millimeter-wave signal.This component can be realized simultaneously the identical circuit function in four tunnels, and
Four road video amplitude consistency are high, and noise level is low, and dynamic range is big, fluctuate small；Component integrated level is high, operating temperature range
Extensively, video detection has temperature compensation function.It is each that the above advantage makes the present invention be suitable for radar, electronic countermeasure, electronic reconnaissance etc.
In class microwave and millimeter wave system, application prospect is extensive.
Claims (8)
1. a kind of 18-30GHz front end receiver component, which is characterized in that including front ends of millimeter waves circuit, local oscillation circuit, frequency mixer
(9), intermediate-frequency circuit, SDLVA detecting circuit；
The front ends of millimeter waves circuit includes the sequentially connected coupler in 4 tunnels (1), first order switch (2), the first low noise amplification
Device (3), second level switch (4), high-pass filter (5), the second low-noise amplifier (6), front end low-pass filter (7) and program-controlled
Attenuator (8)；
The local oscillation circuit include sequentially connected phase locked source (14), the first bandpass filter (15), first order frequency multiplier (16),
Second bandpass filter (17), four road power splitter (18) of local oscillator, 4 output ends of four road power splitter (18) of local oscillator successively connect respectively
Second level frequency multiplier (19) and third bandpass filter (20) are connect, wherein phase locked source (14) includes VCO and PLL；
The programmable attenuator (8) is respectively connected to an input terminal of corresponding frequency mixer (9) all the way, the third band in local oscillation circuit
Bandpass filter (20) is respectively connected to another input terminal of corresponding frequency mixer (9) all the way；The output end of No. 4 frequency mixers (9) is distinguished
Access intermediate-frequency circuit all the way；
Every road intermediate-frequency circuit includes sequentially connected intermediate frequency low-noise amplifier (10) and mid-frequency low-pass filter (11)；Every road
SDLVA detecting circuit includes sequentially connected SDLVA (12) and operational amplification circuit (13)；Mid-frequency low-pass filter (11) it is defeated
Outlet accesses SDLVA (12), and the operational amplification circuit (13) on every road sends output signal.
2. 18-30GHz front end receiver component according to claim 1, which is characterized in that it further include self-checking circuit, it is described
Self-checking circuit includes four road power splitter (22) of sequentially connected self-test low-noise amplifier (21) and self-test；
Point-frequency signal within the scope of external input 18-30GHz is inputted into self-checking circuit, is amplified through self-test low-noise amplifier (21)
Afterwards, four road 18-30GHz millimeter waves are divided by four road power splitter (22) of self-test, enter four after front ends of millimeter waves circuit respectively
Frequency mixer (9)；Externally input 100MHz reference signal is inputted into local oscillation circuit, is entered after being divided into four road 32GHz local oscillation signals
Four frequency mixers (9)；Signal and the local oscillation circuit input that four frequency mixers (9) respectively input front ends of millimeter waves circuit
After being mixed under 32GHz local oscillation signal, become the intermediate-freuqncy signal of 2-14GHz, enters SDLVA detecting circuit by intermediate-frequency circuit and carry out
Detection, to check whether primary path work is normal.
3. 18-30GHz front end receiver component according to claim 1, which is characterized in that further include shielding box body, setting
There are upper layer cavity and lower layer's cavity, the front ends of millimeter waves circuit, intermediate-frequency circuit, frequency mixer (9) and SDLVA detecting circuit are placed
In the cavity of upper layer, the local oscillation circuit, self-checking circuit are placed in lower layer's cavity.
4. 18-30GHz front end receiver component according to claim 1,2 or 3, which is characterized in that the first order switch
(2), the first low-noise amplifier (3), the second level switch (4), the second low-noise amplifier (6), programmable attenuator (8), intermediate frequency
Low-noise amplifier (10), first order frequency multiplier (16), second level frequency multiplier (19) and self-test low-noise amplifier (21) are
The mmic chip of GaAs technique.
5. 18-30GHz front end receiver component according to claim 1,2 or 3, which is characterized in that the front ends of millimeter waves
First order switch (2), the first low-noise amplifier (3) and second level switch (4) are sequentially connected in circuit, while the first order switchs
(2), second level switch (4) is directly connected to, and constitutes dynamic select control.
6. 18-30GHz front end receiver component according to claim 1,2 or 3, which is characterized in that the SDLVA detection electricity
Road carries out temperature-compensating using temperature sensor.
7. 18-30GHz front end receiver component according to claim 2, which is characterized in that the coupler (1), front end are low
Bandpass filter (7), mid-frequency low-pass filter (11), the first bandpass filter (15), the second bandpass filter (17), third band logical
Filter (20), four road power splitter (18) of local oscillator and four road power splitter (22) of self-test are manufactured using micro belt process.
8. 18-30GHz front end receiver component according to claim 2, which is characterized in that the four road power splitter of self-test
(22), four road power splitter (18) of local oscillator and coupler (1), for realizing four road millimeter-wave signals logarithm video detection function and
Self-checking function, and four road video amplitudes are consistent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811151932.0A CN109462414A (en) | 2018-09-29 | 2018-09-29 | A kind of 18-30GHz front end receiver component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811151932.0A CN109462414A (en) | 2018-09-29 | 2018-09-29 | A kind of 18-30GHz front end receiver component |
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| CN109462414A true CN109462414A (en) | 2019-03-12 |
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| CN201811151932.0A Pending CN109462414A (en) | 2018-09-29 | 2018-09-29 | A kind of 18-30GHz front end receiver component |
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| CN110113060A (en) * | 2019-04-22 | 2019-08-09 | (株)韩国一诺仪器株式会社 | A kind of frequency spectrum receiving unit |
| CN110995198A (en) * | 2019-11-24 | 2020-04-10 | 扬州海科电子科技有限公司 | Miniaturized quick reconfigurable preselector device |
| CN112217536A (en) * | 2020-11-30 | 2021-01-12 | 成都泰格微电子研究所有限责任公司 | Radio frequency front end of satellite ground station and self-checking method thereof |
| CN112422141A (en) * | 2020-11-05 | 2021-02-26 | 陕西飞机工业（集团）有限公司 | Radio frequency anti-interference architecture |
| CN112994634A (en) * | 2021-04-02 | 2021-06-18 | 扬州海科电子科技有限公司 | Multi-channel logarithmic detection amplifier with self-checking function |
| CN114614839A (en) * | 2022-03-04 | 2022-06-10 | 电子科技大学 | Multichannel Ka wave band front end subassembly |
| CN115343679A (en) * | 2022-10-13 | 2022-11-15 | 南京冉思电子科技有限公司 | Multi-band receiver |
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| CN112217536A (en) * | 2020-11-30 | 2021-01-12 | 成都泰格微电子研究所有限责任公司 | Radio frequency front end of satellite ground station and self-checking method thereof |
| CN112217536B (en) * | 2020-11-30 | 2024-03-08 | 成都泰格微电子研究所有限责任公司 | Radio frequency front end of satellite ground station and self-checking method thereof |
| CN112994634A (en) * | 2021-04-02 | 2021-06-18 | 扬州海科电子科技有限公司 | Multi-channel logarithmic detection amplifier with self-checking function |
| CN114614839A (en) * | 2022-03-04 | 2022-06-10 | 电子科技大学 | Multichannel Ka wave band front end subassembly |
| CN115343679A (en) * | 2022-10-13 | 2022-11-15 | 南京冉思电子科技有限公司 | Multi-band receiver |
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