CN114362775A - A receiver - Google Patents
A receiver Download PDFInfo
- Publication number
- CN114362775A CN114362775A CN202111460133.3A CN202111460133A CN114362775A CN 114362775 A CN114362775 A CN 114362775A CN 202111460133 A CN202111460133 A CN 202111460133A CN 114362775 A CN114362775 A CN 114362775A
- Authority
- CN
- China
- Prior art keywords
- signal
- unit
- radio frequency
- frequency
- local oscillator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000010355 oscillation Effects 0.000 claims abstract description 27
- 238000012545 processing Methods 0.000 claims abstract description 17
- 230000000087 stabilizing effect Effects 0.000 claims description 10
- 230000003321 amplification Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 238000013461 design Methods 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Images
Landscapes
- Superheterodyne Receivers (AREA)
Abstract
The invention discloses a receiver, comprising: the frequency mixing unit, a radio frequency signal receiving unit, a local oscillator signal receiving unit, a vertical interconnection structure and a signal output unit are respectively in telecommunication connection with the frequency mixing unit; the radio frequency signal is used for receiving the radio frequency signal and sending the radio frequency signal to the frequency mixing unit; the local oscillation signal receiving unit is used for receiving local oscillation signals and sending the local oscillation signals to the vertical interconnection structure; the vertical interconnection node is used for sending the received local oscillation signal to the frequency mixing unit; the frequency mixing unit is used for carrying out frequency mixing processing on the received radio frequency signal and the local oscillator signal to generate a frequency mixing signal and sending the frequency mixing signal to the signal output unit; the signal output unit is used for outputting the mixing signal; the vertical interconnect structure includes a plurality of input terminals and output terminals.
Description
Technical Field
The invention relates to the technical field of signal processing. And more particularly, to a receiver.
Background
The Ka band refers to the electromagnetic wave of 26.5GHz to 40GHz in the electromagnetic spectrum, and has the characteristics of wide bandwidth and high resolution. The unit spacing of the front-end antenna working in Ka wave band is obviously reduced, and meanwhile, in order to improve the power and resolution of the radar, the number of receiving channels needs to be increased, so that the size and the weight of a receiving module are greatly limited, and meanwhile, the number of receiving channels in a single module needs to be increased. The existing Ka-band receiving module adopts a planar design, local oscillation signals and radio frequency signals are distributed on the same plane, the design can ensure low-loss transmission of the Ka-band signals, but miniaturization and multi-channel integration are not facilitated, and therefore the size and performance of the whole receiving system are influenced.
Disclosure of Invention
It is an object of the present application to provide a receiver to solve at least one of the problems of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the application provides a receiver comprising: the frequency mixing unit, a radio frequency signal receiving unit, a local oscillator signal receiving unit, a vertical interconnection structure and a signal output unit are respectively in telecommunication connection with the frequency mixing unit;
the radio frequency signal is used for receiving a radio frequency signal and sending the radio frequency signal to the frequency mixing unit;
the local oscillation signal receiving unit is used for receiving a local oscillation signal and sending the local oscillation signal to the vertical interconnection structure;
the vertical interconnection node is used for sending the received local oscillation signal to the frequency mixing unit;
the frequency mixing unit is used for carrying out frequency mixing processing on the received radio frequency signal and the local oscillator signal to generate a frequency mixing signal and sending the frequency mixing signal to the signal output unit;
the signal output unit is used for outputting the mixing signal;
wherein the vertical interconnect structure includes a plurality of input terminals and output terminals.
In one possible implementation, the receiver further includes: and the power supply unit is respectively in telecommunication connection with the radio frequency signal receiving unit, the local oscillation signal receiving unit, the frequency mixing unit and the signal output unit.
In one possible implementation, the power supply unit includes:
the direct current bias power supply and the direct current voltage stabilizing circuit are connected with each other;
the output end of the direct current voltage stabilizing circuit is used as the output end of the power supply.
In one possible implementation, the radio frequency signal receiving unit is a limiter.
According to the implementation mode, the amplitude limiter can limit the power amplitude of the input radio frequency signal, and damage to a receiver caused by overlarge radio frequency signals is prevented.
In one possible implementation, the receiver further includes: and the radio frequency signal processing unit is arranged between the radio frequency signal receiving unit and the frequency mixing unit.
In one possible implementation, the radio frequency signal processing unit includes: the radio frequency amplifier and the mirror image filter are connected in sequence;
the radio frequency amplifier is used for amplifying the power of the received radio frequency signal and then sending the radio frequency signal to the image filter;
the image filter is used for filtering image signals related to the local oscillator in the radio-frequency signals after power amplification.
In one possible implementation manner, the local oscillation signal receiving unit includes: the local oscillator signal amplifier and the local oscillator signal power divider are sequentially connected;
the local oscillator signal amplifier is used for amplifying the power of the received local oscillator signal and then sending the local oscillator signal to the local oscillator signal power divider;
the local oscillator signal power divider is used for dividing the local oscillator signals subjected to power amplification into multiple paths for output.
In one possible implementation, the signal output unit is a digitally controlled attenuator.
In one possible implementation, the receiver further includes: and an intermediate frequency signal processing unit disposed between the mixing unit and the signal output unit.
In one possible implementation, the intermediate frequency signal processing unit includes:
the intermediate frequency filter and the intermediate frequency amplifier are connected in sequence;
the intermediate-frequency filter is used for filtering the intermediate-frequency signal and then sending the intermediate-frequency signal to the intermediate-frequency amplifier;
the intermediate frequency amplifier is used for amplifying the filtered intermediate frequency signal.
The invention has the following beneficial effects:
the technical scheme that this application provided adopts perpendicular interconnect structure, with local oscillator signal, radio frequency signal and intermediate frequency signal integration in same module, the volume of module has been reduced, amplify the filtering to each passageway radio frequency signal simultaneously, carry out the down conversion with the local oscillator signal after the power of amplification divides, produce intermediate frequency signal, amplify after filtering, and adjust each passageway gain and the interchannel uniformity through numerical control attenuator, direct current voltage stabilizing circuit provides mains voltage and improves the passageway and builds the isolation for active circuits such as amplifier in each passageway in addition.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 shows a schematic structural diagram of a receiver provided in an embodiment of the present application.
Fig. 2 shows a power supply connection diagram provided in an embodiment of the present application.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
With the development of radar technology, the power and the resolution of the radar are continuously improved, and the number of receiving channels of the radar is correspondingly increased, so that the size and the weight of a receiving module are greatly limited, and meanwhile, the number of the receiving channels in a single module needs to be increased. The existing receiving module adopts a planar design, local oscillator signals and radio frequency signals are distributed on the same plane, the design can ensure low-loss transmission of the signals, but is not beneficial to miniaturization and multi-channel integration, and therefore the size and the performance of the whole receiving system are influenced.
In order to solve the above problem, the present application provides a receiver, as shown in fig. 1, the receiver includes a frequency mixing unit, a radio frequency signal receiving unit, a local oscillator signal receiving unit, a vertical interconnection structure, and a signal output unit, which are respectively in telecommunication connection with the frequency mixing unit;
the radio frequency signal is used for receiving the radio frequency signal and sending the radio frequency signal to the frequency mixing unit;
the local oscillation signal receiving unit is used for receiving local oscillation signals and sending the local oscillation signals to the vertical interconnection structure; the vertical interconnection node is used for sending the received local oscillation signal to the frequency mixing unit; the frequency mixing unit is used for carrying out frequency mixing processing on the received radio frequency signal and the local oscillator signal to generate a frequency mixing signal and sending the frequency mixing signal to the signal output unit; the signal output unit is used for outputting the mixing signal;
wherein the vertical interconnect structure includes a plurality of input terminals and output terminals.
In one specific example, the vertical interconnect structure can be fabricated by low temperature co-fired ceramic (LTCC) technology, MEMS bulk silicon process, and placed in a metal housing to serve as mechanical protection, electromagnetic shielding, and hermetic packaging.
The receiver provided by the embodiment integrates the local oscillator signal, the radio frequency signal and the intermediate frequency signal in the same module by adopting a vertical interconnection structure, so that the volume of the receiver is reduced, and the miniaturization and multi-channel integration of the receiver are realized conveniently.
In some embodiments, as shown in fig. 2, the receiver further includes a power supply unit respectively connected to the radio frequency signal receiving unit, the local oscillator signal receiving unit, the frequency mixing unit, and the signal output unit in telecommunication.
Specifically, the power supply unit includes: the direct current bias power supply and the direct current voltage stabilizing circuit are connected with each other;
the output end of the direct current voltage stabilizing circuit is used as the output end of the power supply.
The direct current voltage stabilizing circuit provides stable direct current voltage for each device in the receiver, isolation among channels is achieved, and the direct current bias power supply provides power for the direct current voltage stabilizing circuit.
In some embodiments, the radio frequency signal receiving unit is a limiter. The amplitude limiter can limit the power amplitude of the input radio frequency signal and prevent the radio frequency signal from being over-power to cause damage to other devices of the receiver.
Further, in some embodiments, the receiver further includes a radio frequency signal processing unit disposed between the radio frequency signal receiving unit and the mixing unit.
Specifically, the radio frequency signal processing unit includes: the radio frequency amplifier and the mirror image filter are connected in sequence; the radio frequency signal after the amplitude limiter needs a radio frequency amplifier to amplify the signal so as to meet the requirement that the power of a mixing unit can meet the requirement of a mixer, and the mirror image filter is used for preventing the radio frequency from entering the mixer about the mirror image frequency signal of the local oscillator.
In some embodiments, the local oscillator signal receiving unit includes: the local oscillator signal amplifier and the local oscillator signal power divider are sequentially connected; the local oscillator amplifier amplifies the local oscillator signal, so that the power of the local oscillator signal meets the requirement of the frequency mixer on the local oscillator signal. The amplified local oscillation signals are divided into multiple paths through the local oscillation power divider, enter the local oscillation port of each channel frequency mixer through the vertical interconnection structure, and provide local oscillation signals for the frequency mixers.
At this point, the mixing unit performs down-conversion on the radio frequency signal and the local oscillator signal which are combined and searched, generates an intermediate frequency signal, and outputs the intermediate frequency signal to the signal output unit, wherein the frequency of the intermediate frequency signal is a difference value between the frequencies of the radio frequency signal and the local oscillator signal.
Specifically, the signal output unit is a numerical control attenuator. The digital controlled attenuator can adjust the signal gain of each channel and the gain consistency among the channels.
Preferably, the intermediate frequency signal output by the mixing unit may be further processed at an intermediate frequency signal processing unit between the mixing unit and the signal output unit.
The intermediate frequency signal processing unit includes: the intermediate frequency filter and the intermediate frequency amplifier are connected in sequence; the intermediate frequency signal enters an intermediate frequency filter to filter out unnecessary frequency components, and then the intermediate frequency signal is subjected to power amplification through an intermediate frequency amplifier and then output to a numerical control attenuator.
The receiver provided by the implementation adopts a vertical interconnection structure, local oscillation signals, radio frequency signals and intermediate frequency signals are integrated in the same module, the size of the module is reduced, meanwhile, the radio frequency signals of all channels are amplified and filtered, the local oscillation signals are subjected to down-conversion with amplified power division to generate intermediate frequency signals, the intermediate frequency signals are amplified after being filtered, the gain and the consistency among the channels are adjusted through a numerical control attenuator, in addition, a direct current voltage stabilizing circuit provides power supply voltage for active circuits such as amplifiers in all channels, and the isolation of the channels is improved.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (10)
1. A receiver, comprising:
the frequency mixing unit, a radio frequency signal receiving unit, a local oscillator signal receiving unit, a vertical interconnection structure and a signal output unit are respectively in telecommunication connection with the frequency mixing unit;
the radio frequency signal is used for receiving a radio frequency signal and sending the radio frequency signal to the frequency mixing unit;
the local oscillation signal receiving unit is used for receiving a local oscillation signal and sending the local oscillation signal to the vertical interconnection structure;
the vertical interconnection node is used for sending the received local oscillation signal to the frequency mixing unit;
the frequency mixing unit is used for carrying out frequency mixing processing on the received radio frequency signal and the local oscillator signal to generate a frequency mixing signal and sending the frequency mixing signal to the signal output unit;
the signal output unit is used for outputting the mixing signal;
wherein the vertical interconnect structure includes a plurality of input terminals and output terminals.
2. The receiver of claim 1, further comprising: and the power supply unit is respectively in telecommunication connection with the radio frequency signal receiving unit, the local oscillation signal receiving unit, the frequency mixing unit and the signal output unit.
3. The receiver of claim 2, wherein the power supply unit comprises:
the direct current bias power supply and the direct current voltage stabilizing circuit are connected with each other;
the output end of the direct current voltage stabilizing circuit is used as the output end of the power supply.
4. The receiver of claim 1, wherein the radio frequency signal receiving unit is a limiter.
5. The receiver of claim 1, further comprising: and the radio frequency signal processing unit is arranged between the radio frequency signal receiving unit and the frequency mixing unit.
6. The receiver of claim 5, wherein the radio frequency signal processing unit comprises:
the radio frequency amplifier and the mirror image filter are connected in sequence;
the radio frequency amplifier is used for amplifying the power of the received radio frequency signal and then sending the radio frequency signal to the image filter;
the image filter is used for filtering image signals related to the local oscillator in the radio-frequency signals after power amplification.
7. The receiver according to claim 1, wherein the local oscillation signal receiving unit comprises: the local oscillator signal amplifier and the local oscillator signal power divider are sequentially connected;
the local oscillator signal amplifier is used for amplifying the power of the received local oscillator signal and then sending the local oscillator signal to the local oscillator signal power divider;
the local oscillator signal power divider is used for dividing the local oscillator signals subjected to power amplification into multiple paths for output.
8. The receiver of claim 1, wherein the signal output unit is a digitally controlled attenuator.
9. The receiver according to claim 1, further comprising an intermediate frequency signal processing unit provided between the mixing unit and the signal output unit.
10. The receiver of claim 7, wherein the if signal processing unit comprises:
the intermediate frequency filter and the intermediate frequency amplifier are connected in sequence;
the intermediate-frequency filter is used for filtering the intermediate-frequency signal and then sending the intermediate-frequency signal to the intermediate-frequency amplifier;
the intermediate frequency amplifier is used for amplifying the filtered intermediate frequency signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111460133.3A CN114362775A (en) | 2021-12-02 | 2021-12-02 | A receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111460133.3A CN114362775A (en) | 2021-12-02 | 2021-12-02 | A receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114362775A true CN114362775A (en) | 2022-04-15 |
Family
ID=81098150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111460133.3A Pending CN114362775A (en) | 2021-12-02 | 2021-12-02 | A receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114362775A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051348A (en) * | 2012-12-11 | 2013-04-17 | 青岛联盟电子仪器有限公司 | Receiver circuit |
| CN108198788A (en) * | 2017-12-13 | 2018-06-22 | 深圳市时代速信科技有限公司 | A kind of ltcc substrate that transmission performance is vertically interconnected with firing frequency signal |
| CN108919245A (en) * | 2018-07-12 | 2018-11-30 | 中国船舶重工集团公司第七二四研究所 | A kind of natural air cooled multi-channel digital T/R component miniaturization design method |
| CN112564627A (en) * | 2020-11-26 | 2021-03-26 | 扬州船用电子仪器研究所(中国船舶重工集团公司第七二三研究所) | Integrated multifunctional up-conversion assembly |
| CN214014214U (en) * | 2021-02-03 | 2021-08-20 | 成都天锐星通科技有限公司 | Down conversion module and mobile terminal |
-
2021
- 2021-12-02 CN CN202111460133.3A patent/CN114362775A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051348A (en) * | 2012-12-11 | 2013-04-17 | 青岛联盟电子仪器有限公司 | Receiver circuit |
| CN108198788A (en) * | 2017-12-13 | 2018-06-22 | 深圳市时代速信科技有限公司 | A kind of ltcc substrate that transmission performance is vertically interconnected with firing frequency signal |
| CN108919245A (en) * | 2018-07-12 | 2018-11-30 | 中国船舶重工集团公司第七二四研究所 | A kind of natural air cooled multi-channel digital T/R component miniaturization design method |
| CN112564627A (en) * | 2020-11-26 | 2021-03-26 | 扬州船用电子仪器研究所(中国船舶重工集团公司第七二三研究所) | Integrated multifunctional up-conversion assembly |
| CN214014214U (en) * | 2021-02-03 | 2021-08-20 | 成都天锐星通科技有限公司 | Down conversion module and mobile terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213521865U (en) | Frequency conversion receiving system | |
| CN108233952B (en) | Communication module | |
| CN210405279U (en) | Receive front end module | |
| US20230238985A1 (en) | Radio-frequency circuit | |
| CN210327507U (en) | Frequency conversion assembly for receiving frequency converter | |
| US9048931B2 (en) | Method and arrangement for feeder sharing in a telecommunication system | |
| CN114785358A (en) | Miniaturized L-to-C waveband multi-channel self-adaptive frequency converter | |
| GB2266028A (en) | Active two-way radio repeater | |
| CN114362775A (en) | A receiver | |
| CN108768500B (en) | Communication satellite transponder | |
| CN216794989U (en) | Multi-mode multi-channel radio frequency transceiver | |
| US11664835B2 (en) | Fully integrated radio frequency terminal system | |
| CN210431847U (en) | Frequency conversion assembly for receiving front end | |
| CN112737621A (en) | Down-conversion module for investigation and interference integrated equipment | |
| US6072824A (en) | Circuit arrangement for reducing intermodulation in a bandpass filter system | |
| CN113890560A (en) | Radio frequency assembly, phased array antenna, and phased array antenna device | |
| KR20130071748A (en) | Multi channel beam scan receiver | |
| GB2383700A (en) | Frequency converter for CDMA systems | |
| CN211579970U (en) | Unmanned aerial vehicle frequency division transceiver | |
| CN219018802U (en) | Front-end receiving variable frequency assembly of X-band miniaturized unmanned aerial vehicle | |
| CN215378870U (en) | Ultra-wideband frequency conversion device | |
| CN114244391B (en) | Radio frequency assembly | |
| KR100906776B1 (en) | Interference suppress system filter module having switching low noise amplifier | |
| CN110557189B (en) | V-band communication satellite transponder | |
| CN210274043U (en) | VUC receiving module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |