CN117318738A - Clock-shaped pulse waveform adjustable device based on numerical control phase shifter and transmitter - Google Patents
Clock-shaped pulse waveform adjustable device based on numerical control phase shifter and transmitter Download PDFInfo
- Publication number
- CN117318738A CN117318738A CN202311245562.8A CN202311245562A CN117318738A CN 117318738 A CN117318738 A CN 117318738A CN 202311245562 A CN202311245562 A CN 202311245562A CN 117318738 A CN117318738 A CN 117318738A
- Authority
- CN
- China
- Prior art keywords
- branch
- amplifier
- power
- phase shifter
- transmitter
- 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
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 4
- 230000005284 excitation Effects 0.000 claims description 30
- 230000006870 function Effects 0.000 claims description 9
- 230000003321 amplification Effects 0.000 claims description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 7
- 238000001228 spectrum Methods 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims 1
- 101100536250 Homo sapiens TMEM120A gene Proteins 0.000 description 5
- 102100028548 Ion channel TACAN Human genes 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/04—Position modulation, i.e. PPM
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/081—Details of the phase-locked loop provided with an additional controlled phase shifter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a clock-shaped pulse waveform adjustable device based on a numerical control phase shifter and a transmitter, wherein the device comprises: the first branch is composed of a first branch and a second branch; the second branch circuit is composed of a plurality of second branch circuits; the input end of the first type branch or the second type branch is connected with a power divider, and the output end is connected with a power synthesizer; the first branch comprises a numerical control phase shifter, a first driving amplifier and a first final-stage amplifier which are sequentially connected; the second branch is sequentially connected with a second driving amplifier and a second final-stage amplifier; the input end of the numerical control phase shifter is connected with the output end of the power divider; the output end of the first final amplifier is connected with the input end of the power synthesizer; the input end of the second drive amplifier is connected with the output end of the power divider, and the output end of the second final amplifier is connected with the input end of the power synthesizer. The invention realizes arbitrary pulse envelope control of kilowatt level pulse power synthesis through low cost, and improves the reliability of the transmitter.
Description
Technical Field
The invention relates to the technical field of transmitters, in particular to a bell-shaped pulse waveform adjustable device based on a numerical control phase shifter and a transmitter.
Background
Currently, transmitters in the field of airborne comprehensive avionics belong to multimode transmitters, and the functions and signal formats of the transmitters generally comprise aviation control, ADS-B, DME, TACAN, a data link and the like, wherein the radio frequency signal pulse envelopes of the DME mode and the TACAN mode are bell-shaped pulse envelopes.
The current multimode transmitter generally adopts a GaN power amplifier tube to realize the amplification function of 1000W-2000W order port power, and the modulation technical system generally adopts a drain high-voltage modulation technology to realize the radio frequency modulation of mode signals such as aviation control, ADS-B, DME, TACAN, data link and the like. The pulse envelope of the radio frequency signals in the DME mode and the TACAN mode utilizes the high-voltage pulse signal of the drain electrode to control the on/off working time of the GaN power amplifier tube, and a kilowatt-level pulse envelope radio frequency signal is generated.
Currently, a kilowatt-level clock-shaped pulse envelope radio frequency signal generally adopts a +50V high-voltage drain electrode modulator to generate high-voltage clock-shaped voltage pulse which is used as the drain electrode modulation of a GaN power amplifier tube, and meanwhile, the opening/closing working time of the GaN power amplifier tube is controlled through the voltage pulse signal, so that the kilowatt-level clock-shaped pulse envelope radio frequency signal is realized. Thus, a series of problems such as complex hardware design, high implementation cost, large equipment size, low reliability and the like can be brought.
Disclosure of Invention
In view of the above, the invention provides a clock-shaped pulse waveform adjustable device based on a numerical control phase shifter and a transmitter, which greatly improve the reliability of the transmitter, and have the advantages of low cost, simple hardware and miniaturization and higher economic value.
The invention discloses a clock-shaped pulse waveform adjustable device based on a numerical control phase shifter, which comprises:
a power divider, a power combiner, and a first class branch or a second class branch between the power divider and the power combiner; the first branch is composed of a first branch and a second branch; the second branch circuit is composed of a plurality of second branch circuits;
the input end of the first type branch or the second type branch is connected with a power divider, and the output end is connected with a power synthesizer;
the first branch comprises a numerical control phase shifter, a first driving amplifier and a first final-stage amplifier which are sequentially connected; the second branch is sequentially connected with a second driving amplifier and a second final-stage amplifier; the input end of the numerical control phase shifter is connected with the output end of the power divider; the output end of the first final amplifier is connected with the input end of the power synthesizer; the input end of the second drive amplifier is connected with the output end of the power divider, and the output end of the second final amplifier is connected with the input end of the power synthesizer.
Further, the power divider is configured to receive an input excitation signal, divide the excitation signal into multiple paths, and input the excitation signal into a first branch and a second branch respectively, or input the excitation signal into all the second branches respectively;
the first branch is used for carrying out phase modulation on the received excitation signal so as to enable the modulated phase to be different from the phase of the excitation signal received by the second branch, namely, a phase difference is generated; or,
all the second branches are respectively used for carrying out phase modulation on the received excitation signals so as to enable all the modulated phases to be different from each other, namely, phase difference is generated.
Further, the digital control phase shifter is used for modulating the phase of the received excitation signal and transmitting the modulated excitation signal to the first driving amplifier;
the first driving amplifier is used for determining the number of stages of power amplification tubes of the driving generator according to the power of the modulated excitation signal and the driving power required by the first final amplifier;
the first final amplifier is used for amplifying the multipath amplifier according to the output power of the first driving amplifier and outputting the amplified multipath amplifier to the power synthesizer.
Further, an isolator is additionally arranged at the output end of the first driving amplifier so that the first driving amplifier is matched with the first final-stage amplification and synthesis circuit.
Further, the second drive amplifier is identical in structure and function to the first drive amplifier; the first final stage amplifier is identical in structure and function to the second final stage amplifier.
The invention also discloses a clock-shaped pulse waveform adjustable transmitter based on the numerical control phase shifter, which comprises the clock-shaped pulse waveform adjustable device based on the numerical control phase shifter and a circulator;
the output end of the power divider is connected with the input end of the circulator; the circulator transmits an excitation signal through the antenna; or when the transmitter needs to receive external signals, the antenna sequentially passes through the filter and the circulator to output the received signals to the receiving circuit.
Further, the filter is also included; the input end of the filter is connected with the circulator, and the output end of the filter is connected with the antenna;
the filter is used for suppressing harmonic waves and clutter of the signal spectrum so as to meet the index requirements of the transmitter on the spectrum characteristics.
Further, the circulator is used for protecting the power synthesizer and reducing the influence of external impedance change on the transmitter.
Further, the device also comprises a digital interface board; the digital interface board comprises an embedded processor, a power supply processing chip and a memory;
the embedded processor is used for completing communication with the system, controlling the phase of the numerical control phase shifter and storing the phase value required by debugging in the memory;
and the power supply processing chip is used for providing the voltage required by the transmitter.
Further, the embedded processor is used for controlling the phase change of the numerical control shifter, so as to control the power and the pulse envelope output by the power synthesizer; the pulse envelope includes a pulse rising edge, a pulse top, and a pulse falling edge that are controlled by a clock-type pulse.
Due to the adoption of the technical scheme, the invention has the following advantages:
1. the invention provides a scheme for realizing the clock-shaped pulse waveform modulation transmitter based on the numerical control phase shifter, which can avoid a hardware circuit for generating high-voltage clock-shaped voltage pulses by adopting a high-voltage drain electrode modulator, greatly improves the reliability of the transmitter, and has the advantages of low cost, simple hardware, miniaturization and higher reliability and economic value.
2. The scheme can realize any pulse envelope control technology of kilowatt-level pulse power synthesis through very low cost, thereby being applied to high-power radio frequency signal modulation of DME and TACAN signal formats in an avionic frequency band transmitter.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the embodiments of the present invention, and other drawings may be obtained according to these drawings for those skilled in the art.
FIG. 1 is a schematic diagram of a frame of a digital controlled phase shifter based clock-type pulse waveform adjustable transmitter according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a frame of a clock-type pulse waveform adjusting device based on a digitally controlled phase shifter according to an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, wherein the examples are shown only in a partial, but not in all embodiments of the invention. All other embodiments obtained by those skilled in the art are intended to fall within the scope of the embodiments of the present invention.
The existing kilowatt level clock pulse envelope radio frequency signal generally adopts a +50V high-voltage drain electrode modulator to generate high-voltage clock voltage pulse which is used as the drain electrode modulation of the GaN power amplifier tube, and meanwhile, the opening/closing working time of the GaN power amplifier tube is controlled through the voltage pulse signal, so that the kilowatt level clock pulse envelope radio frequency signal is realized. Thus, a series of problems such as complex hardware design, high implementation cost, large equipment size, low reliability and the like can be brought.
In view of this, the present invention provides an embodiment of a digitally controlled phase shifter based bell-shaped pulse waveform adjustable device, comprising: a power divider, a power combiner, and a first class branch or a second class branch between the power divider and the power combiner; the first branch is composed of a first branch and a second branch; the second branch circuit is composed of a plurality of second branch circuits;
the input end of the first type branch or the second type branch is connected with a power divider, and the output end is connected with a power synthesizer;
the first branch comprises a numerical control phase shifter, a first driving amplifier and a first final-stage amplifier which are sequentially connected; the second branch is sequentially connected with a second driving amplifier and a second final-stage amplifier; the input end of the numerical control phase shifter is connected with the output end of the power divider; the output end of the first final amplifier is connected with the input end of the power synthesizer; the input end of the second drive amplifier is connected with the output end of the power divider, and the output end of the second final amplifier is connected with the input end of the power synthesizer.
Fig. 2 schematically shows a block diagram of the device when the first type of branch comprises a first branch and a second branch.
In this embodiment, the power divider is configured to receive an input excitation signal, divide the excitation signal into multiple paths, and input the multiple paths into the first branch and the second branch, or input the multiple paths into all the second branches;
the first branch is used for carrying out phase modulation on the received excitation signal so as to enable the modulated phase to be different from the phase of the excitation signal received by the second branch, namely, a phase difference is generated; or,
all the second branches are respectively used for carrying out phase modulation on the received excitation signals so as to enable all the modulated phases to be different from each other, namely, phase difference is generated. The excitation signal may be a radio frequency rectangular pulse signal.
Specifically, when a first branch is connected between the power divider and the power synthesizer, the first branch is added with a numerical control phase shifter, and when a normal rectangular pulse signal is input to the power divider, the power divider divides the power divider into a plurality of radio frequency rectangular pulse signals with phase differences (namely, all the first branches and the second branches respectively have phase differences; the second branches can be one or a plurality of the second branches); the radio frequency pulse signal amplified by the second branch is used as a normal reference signal, and a fixed phase difference exists between the radio frequency pulse signal amplified by the first branch and the normal reference signal through controlling the numerical control direction shifter; therefore, at each position of the rising edge, the top falling edge and the like of the pulse, the phases of the multipath signals entering the power synthesizer are deviated through different phase shifting control, and the radio frequency signals with different phases are synthesized; thus at the output of the power combiner, the power and pulse envelope (including the pulse rising edge, the pulse top and the pulse falling edge of the bell pulse control) output by the power combiner port can be controlled by the phase change of the digitally controlled shifter of the first branch.
In this embodiment, the digitally controlled phase shifter is configured to modulate a phase of the received excitation signal, and transmit the modulated excitation signal to the first driving amplifier;
the first driving amplifier is used for determining the number of stages of power amplification tubes of the driving generator according to the power of the modulated excitation signal and the driving power required by the first final amplifier;
the first final amplifier is used for amplifying the multipath amplifier according to the output power of the first driving amplifier and outputting the amplified multipath amplifier to the power synthesizer.
In this embodiment, an isolator is added to the output end of the first driving amplifier, so that the first driving amplifier is matched with the first final amplification circuit.
In this embodiment, the second driving amplifier has the same structure and function as the first driving amplifier; the first final stage amplifier is identical in structure and function to the second final stage amplifier.
The invention also discloses a clock-type pulse waveform adjustable transmitter based on the numerical control phase shifter, which comprises the clock-type pulse waveform adjustable device based on the numerical control phase shifter and a circulator;
the output end of the power divider is connected with the input end of the circulator; the circulator transmits an excitation signal through the antenna; or when the transmitter needs to receive external signals, the antenna sequentially passes through the filter and the circulator to output the received signals to the receiving circuit.
On the basis of fig. 2, fig. 1 shows an overall block diagram of a transmitter.
In this embodiment, the filter is further included; the input end of the filter is connected with the circulator, and the output end of the filter is connected with the antenna;
the filter is used for suppressing harmonic waves and clutter of the signal spectrum so as to meet the index requirements of the transmitter on the spectrum characteristics.
In this embodiment, the circulator is used to protect the power combiner and reduce the influence of external impedance variation on the transmitter.
In this embodiment, the device further comprises a digital interface board; the digital interface board comprises an embedded processor, a power supply processing chip and a memory;
the embedded processor is used for completing communication with the system, controlling the phase of the numerical control phase shifter and storing the phase value required by debugging in the memory; the system refers to a radar system including a transmitter, a receiver, and the like in the present embodiment.
And the power supply processing chip is used for providing the voltage required by the transmitter.
The clock-shaped pulse waveform modulation can obtain at least two paths of radio frequency signals with unequal phases through a simple digital control function of a digital interface board, and then the radio frequency signals are synthesized by a power synthesizer, so that the random control of the envelope modulation of the radio frequency high-power pulse signals is achieved.
In this embodiment, the embedded processor is configured to control a phase change of the numerical control shifter, so as to control power and a pulse envelope output by the power synthesizer; the pulse envelope includes a pulse rising edge, a pulse top, and a pulse falling edge controlled by a clock-type pulse.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.
Claims (10)
1. A digitally controlled phase shifter based bell-type pulse waveform adjustable device, comprising: a power divider, a power combiner, and a first class branch or a second class branch between the power divider and the power combiner; the first branch is composed of a first branch and a second branch; the second branch circuit is composed of a plurality of second branch circuits;
the input end of the first type branch or the second type branch is connected with a power divider, and the output end is connected with a power synthesizer;
the first branch comprises a numerical control phase shifter, a first driving amplifier and a first final-stage amplifier which are sequentially connected; the second branch is sequentially connected with a second driving amplifier and a second final-stage amplifier; the input end of the numerical control phase shifter is connected with the output end of the power divider; the output end of the first final amplifier is connected with the input end of the power synthesizer; the input end of the second drive amplifier is connected with the output end of the power divider, and the output end of the second final amplifier is connected with the input end of the power synthesizer.
2. The digitally controlled phase shifter based clock pulse waveform adjustable device of claim 1, wherein the power divider is configured to receive an input excitation signal and divide the excitation signal into multiple paths for input to the first branch and the second branch, respectively, or for input to all the second branches, respectively;
the first branch is used for carrying out phase modulation on the received excitation signal so as to enable the modulated phase to be different from the phase of the excitation signal received by the second branch, namely, a phase difference is generated; or,
all the second branches are respectively used for carrying out phase modulation on the received excitation signals so as to enable all the modulated phases to be different from each other, namely, phase difference is generated.
3. The digitally controlled phase shifter-based clock pulse waveform adjustable device of claim 1, wherein the digitally controlled phase shifter is configured to modulate the phase of a received excitation signal and transmit the modulated excitation signal to a first drive amplifier;
the first driving amplifier is used for determining the number of stages of power amplification tubes of the driving generator according to the power of the modulated excitation signal and the driving power required by the first final amplifier;
the first final amplifier is used for amplifying the multipath amplifier according to the output power of the first driving amplifier and outputting the amplified multipath amplifier to the power synthesizer.
4. The digitally controlled phase shifter-based clock pulse waveform adjustable device of claim 1, wherein an isolator is added to the output of the first driver amplifier to match the first driver amplifier to the first final stage amplification and synthesis circuit.
5. The digitally controlled phase shifter based clock pulse waveform adjustable device of claim 1, wherein the second driver amplifier is identical in structure and function to the first driver amplifier; the first final stage amplifier is identical in structure and function to the second final stage amplifier.
6. A digitally controlled phase shifter based clock-type pulse waveform adjustable transmitter comprising a digitally controlled phase shifter based clock-type pulse waveform adjustable device and a circulator as claimed in any one of claims 1 to 5;
the output end of the power divider is connected with the input end of the circulator; the circulator transmits an excitation signal through the antenna; or when the transmitter needs to receive external signals, the antenna sequentially passes through the filter and the circulator to output the received signals to the receiving circuit.
7. The digitally controlled phase shifter based clock pulse waveform adjustable transmitter of claim 6, further comprising a filter; the input end of the filter is connected with the circulator, and the output end of the filter is connected with the antenna;
the filter is used for suppressing harmonic waves and clutter of the signal spectrum so as to meet the index requirements of the transmitter on the spectrum characteristics.
8. The digitally controlled phase shifter based clock pulse waveform adjustable transmitter of claim 6, wherein the circulator is configured to protect the power combiner and reduce the effects of external impedance variations on the transmitter.
9. The digitally controlled phase shifter based clock pulse waveform adjustable transmitter of claim 6, further comprising a digital interface board; the digital interface board comprises an embedded processor, a power supply processing chip and a memory;
the embedded processor is used for completing communication with the system, controlling the phase of the numerical control phase shifter and storing the phase value required by debugging in the memory;
and the power supply processing chip is used for providing the voltage required by the transmitter.
10. The digitally controlled phase shifter based clock-type pulse waveform adjustable transmitter of claim 9, wherein the embedded processor is configured to control phase changes of the digitally controlled phase shifter to thereby control power and pulse envelope output by the power combiner; the pulse envelope includes a pulse rising edge, a pulse top, and a pulse falling edge that are controlled by a clock-type pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311245562.8A CN117318738A (en) | 2023-09-25 | 2023-09-25 | Clock-shaped pulse waveform adjustable device based on numerical control phase shifter and transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311245562.8A CN117318738A (en) | 2023-09-25 | 2023-09-25 | Clock-shaped pulse waveform adjustable device based on numerical control phase shifter and transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117318738A true CN117318738A (en) | 2023-12-29 |
Family
ID=89261477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311245562.8A Pending CN117318738A (en) | 2023-09-25 | 2023-09-25 | Clock-shaped pulse waveform adjustable device based on numerical control phase shifter and transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117318738A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117895957A (en) * | 2024-03-18 | 2024-04-16 | 四川九洲电器集团有限责任公司 | Debugging method based on excitation signal and adjustable transmitter |
| CN117895956A (en) * | 2024-03-15 | 2024-04-16 | 四川九洲电器集团有限责任公司 | Modulation method, system and storage medium for reducing transmitter background noise |
| CN117895957B (en) * | 2024-03-18 | 2024-05-31 | 四川九洲电器集团有限责任公司 | Debugging method based on excitation signal and adjustable transmitter |
-
2023
- 2023-09-25 CN CN202311245562.8A patent/CN117318738A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117895956A (en) * | 2024-03-15 | 2024-04-16 | 四川九洲电器集团有限责任公司 | Modulation method, system and storage medium for reducing transmitter background noise |
| CN117895956B (en) * | 2024-03-15 | 2024-05-31 | 四川九洲电器集团有限责任公司 | Modulation method, system and storage medium for reducing transmitter background noise |
| CN117895957A (en) * | 2024-03-18 | 2024-04-16 | 四川九洲电器集团有限责任公司 | Debugging method based on excitation signal and adjustable transmitter |
| CN117895957B (en) * | 2024-03-18 | 2024-05-31 | 四川九洲电器集团有限责任公司 | Debugging method based on excitation signal and adjustable transmitter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4962298B2 (en) | Transceiver | |
| CN102724162B (en) | Multi-channel nuclear magnetic resonance radio frequency signal transmitter | |
| CN109946651B (en) | Multifunctional phased array TR chip based on three-dimensional packaging structure | |
| US20180156890A1 (en) | Systems and methods for cascading radar chips having a low leakage buffer | |
| CN203872167U (en) | Millimeter wave integrated transmit-receive channel | |
| CN112671428B (en) | Multichannel radio frequency signal receiving and transmitting amplitude-phase control device | |
| CN111082831A (en) | Satellite-borne synchronous transmitting and receiving device and signal processing method | |
| CN111987995A (en) | Comb signal source based on mixing modulation feedback loop | |
| CN117318738A (en) | Clock-shaped pulse waveform adjustable device based on numerical control phase shifter and transmitter | |
| EP3681044A1 (en) | Fixed low intermediate frequency approach to distance measurement transmitter | |
| KR20170102169A (en) | Radio frequency power amplifier | |
| CN210111948U (en) | Comb signal source based on mixing modulation feedback loop | |
| CN205017357U (en) | Subminiature multichannel millimeter wave vector modulator | |
| CN106849983A (en) | A kind of millimeter wave transceiving component | |
| CN110958026A (en) | Radio frequency broadband transceiver | |
| CN109975856B (en) | Multi-beam microwave source based on multiplexer | |
| JP6409296B2 (en) | Transmitter, radar apparatus, and transmission power control method | |
| CN215420280U (en) | Ku-waveband multi-channel high-power TR (transmitter-receiver) assembly | |
| CN108156105B (en) | Narrow-band FSK signal modulation system and method with variable power/frequency | |
| CN110609260B (en) | T/R module test circuit | |
| CN103220121B (en) | A kind of many radio systems and radio-frequency module | |
| CN111130587A (en) | Novel SC frequency channel broadband TR subassembly | |
| CN115668758A (en) | Tracker module, power amplification module, high-frequency module, and communication device | |
| CN211046878U (en) | High-frequency power amplification extension for microwave power capacity tester | |
| CN104597468A (en) | Down-conversion channel module and multi-channel conversion receiving device |
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 |