CN210744116U - Ka wave band exciter - Google Patents
Ka wave band exciter Download PDFInfo
- Publication number
- CN210744116U CN210744116U CN201922335208.XU CN201922335208U CN210744116U CN 210744116 U CN210744116 U CN 210744116U CN 201922335208 U CN201922335208 U CN 201922335208U CN 210744116 U CN210744116 U CN 210744116U
- Authority
- CN
- China
- Prior art keywords
- module
- band
- local oscillator
- power supply
- attenuator
- 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.)
- Active
Links
Images
Landscapes
- Transmitters (AREA)
Abstract
The application provides a Ka-band exciter, characterized by comprising: a Ka band up-conversion module; the frequency source module is connected with the Ka waveband up-conversion module; the control module is connected with the frequency source module; the power supply module is connected with the control module; the Ka band up-conversion module comprises a primary up-conversion module; the second-level up-conversion module is connected with the first-level up-conversion module; the final stage filtering module is connected with the two-stage up-conversion module; the frequency source module comprises a divider; the first local oscillator module is connected with a first output end of the divider; the second local oscillator module is connected with the second output end of the divider; the output end of the first local oscillator module is connected with the first local oscillator end of the first-stage up-conversion module; the output end of the second local oscillator module is connected with the second local oscillator end of the second-stage up-conversion module; the control module is connected with the first local oscillation module and the second local oscillation module.
Description
Technical Field
The application relates to the technical field of microwave communication, in particular to a Ka-band exciter.
Background
The exciter is a harmonic generator, which can select the middle and high frequency band in the audio signal and send it into the harmonic generator to produce the high frequency harmonic of the frequency, and add it into the original audio signal to strengthen the harmonic component in the frequency modulation region in the original audio signal. But the up-conversion controllability of the existing exciter is poor.
SUMMERY OF THE UTILITY MODEL
An object of the present application is to provide a Ka band exciter for achieving a technical effect of improving controllability of up-conversion of the exciter.
The embodiment of the application provides a Ka-band exciter, which comprises a Ka-band up-conversion module; the frequency source module is connected with the Ka waveband up-conversion module; the control module is connected with the frequency source module; the power supply module is connected with the control module; the Ka band up-conversion module comprises a primary up-conversion module; the second-level up-conversion module is connected with the first-level up-conversion module; the final stage filtering module is connected with the two-stage up-conversion module; the frequency source module comprises a divider; the first local oscillator module is connected with a first output end of the divider; the second local oscillator module is connected with the second output end of the divider; the output end of the first local oscillator module is connected with the first local oscillator end of the first-stage up-conversion module; the output end of the second local oscillator module is connected with the second local oscillator end of the second-stage up-conversion module; the control module is connected with the first local oscillation module and the second local oscillation module.
Further, the primary up-conversion module comprises a first attenuator; a first power amplifier connected to the first attenuator; a second attenuator connected to the first power amplifier; a second power amplifier connected to the second attenuator; a third attenuator connected to the second power amplifier; a first mixer is connected with the third attenuator; and the first local oscillator end is connected with the frequency mixer.
Furthermore, the secondary up-conversion module comprises a multi-channel band-pass filter circuit; the third power amplifier is connected with the multi-channel band-pass filter circuit; a first band pass filter connected to the third power amplifier; a fourth attenuator connected to the first band pass filter; a second mixer connected to the fourth attenuator; and the second local oscillator end is connected with the second frequency mixer.
Further, the first local oscillator module includes a first low-pass filtering and amplifying circuit; the frequency multiplier is connected with the first low-pass filtering amplification circuit; the second low-pass filtering amplifying circuit is connected with the frequency decade multiplier; the DDS module is connected with the first low-pass filtering amplifying circuit; the third low-pass filtering amplifying circuit is connected with the DDS module; the first phase-locked loop circuit is connected with the third low-pass filtering amplification circuit; and the first phase-locked loop circuit; the fourth low-pass filtering amplification circuit is connected with the first phase-locked loop circuit; the first coupler is connected with the fourth low-pass filtering amplification circuit; the output end of the first coupler is connected with the first local oscillator end of the first-stage up-conversion module; and the coupling end of the first coupler is connected with the control module.
Further, the second local oscillation module comprises an amplifier connected with the divider; a second phase-locked loop circuit connected to the amplifier; the frequency doubler is connected with the second phase-locked loop circuit; the band-pass filtering amplifying circuit is connected with the frequency doubler; the second coupler is connected with the band-pass filtering amplifying circuit; the output end of the second coupler is connected with a second local oscillator end of the secondary up-conversion module; and the coupling end of the second coupler is connected with the control module.
Further, the power module includes a filter; a DC/DC module connected to the filter; a first power supply module connected to the DC/DC module; a second power supply module connected to the DC/DC module; a third power supply module connected to the DC/DC module; the first power supply module is connected with the Ka waveband up-conversion module; the second power supply module is connected with the frequency source module; the third power supply module is connected with the control module; the control module is connected with the first power supply module and the second power supply module.
Further, the control module includes a controller; the temperature detection unit is connected with the controller; the power module detection unit is connected with the controller; the alarm unit is connected with the controller; a display unit connected with the controller; a communication interface connected with the controller.
The beneficial effect that this application can realize is: the signal of the L wave band can be up-converted into a signal of the Ka wave band through the arranged Ka wave band up-conversion module; through the frequency source module and the control module, the parameters of each local oscillation module in the frequency source module can be controlled; meanwhile, the output power of each level of up-conversion module in the Ka waveband up-conversion module can be controlled through the control module, and the process of up-conversion from the L waveband signal to the Ka waveband signal is better controlled.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic view of a topology of a Ka-band exciter according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a topology structure of a Ka-band upconversion module according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of a topology structure of a frequency source module according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of a topology structure of a power module according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of a control module topology according to an embodiment of the present application.
Icon: a 10-Ka band exciter; 100-Ka wave band up-conversion module; 110-a primary up-conversion module; 120-a secondary up-conversion module; 130-a final filtering block; 200-a frequency source module; 210-a splitter; 220-a first local oscillator module; 221-a first phase-locked loop circuit; 230-a second local oscillator module; 231-a second phase locked loop circuit; 300-a control module; 310-a temperature detection unit; 320-power module detection unit; 330-an alarm unit; 340-a display unit; 350 — a communication interface; 400-a power supply module; 410-a filter; 420-a DC/DC module; 430-a first power supply module; 440-a second power supply module; 450-third power supply module.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, fig. 1 is a schematic view of a topology of a Ka-band exciter according to an embodiment of the present disclosure; fig. 2 is a schematic diagram of a topology structure of a Ka-band upconversion module according to an embodiment of the present disclosure; fig. 3 is a schematic diagram of a topology structure of a frequency source module according to an embodiment of the present disclosure; fig. 4 is a schematic diagram of a topology structure of a power module according to an embodiment of the present disclosure; fig. 5 is a schematic diagram of a control module topology according to an embodiment of the present application.
The Ka band exciter 100 provided in the embodiment of the present application includes: a Ka band up-conversion module 100; a frequency source module 200 connected to the Ka band up-conversion module 100; a control module 300 connected to the frequency source module 200; a power module 400 connected to the control module 300; the Ka band up-conversion module 100 includes a primary up-conversion module 110; a secondary up-conversion module 120 connected to the primary up-conversion module 110; a final filtering block 130 connected to the second-stage up-conversion block 120; the frequency source module 200 includes a divider 210; a first local oscillator module 220 connected to a first output terminal of the divider 210; a second local oscillation module 230 connected to a second output terminal of the divider 210; the output end of the first local oscillation module 220 is connected with the first local oscillation end of the first-stage up-conversion module 110; the output end of the second local oscillator module 230 is connected to the second local oscillator end of the secondary up-conversion module 120; the control module 300 is connected to the first local oscillation module 220 and the second local oscillation module 230.
As shown in fig. 2, the primary up-conversion module 110 includes a first attenuator; a first power amplifier connected to the first attenuator; a second attenuator connected to the first power amplifier; a second power amplifier connected to the second attenuator; a third attenuator connected to the second power amplifier; the first mixer is connected with the third attenuator; and the first local oscillator end is connected with the frequency mixer.
With the above structure, the L-band signal can be up-converted into a high-intermediate frequency signal by the one-stage up-conversion module 110, and in one embodiment, the first attenuator is a fixed value attenuator; the second attenuator and the third attenuator are numerical control attenuators; the up-conversion process of the L-band signal can be controlled in various types according to actual needs, and more application requirements are met.
The secondary up-conversion module 120 includes a multi-channel band-pass filter circuit; the third power amplifier is connected with the multi-channel band-pass filter circuit; a first band pass filter connected to the third power amplifier; a fourth attenuator connected to the first band-pass filter; a second mixer connected to the fourth attenuator; and the second local oscillator end is connected with the second frequency mixer.
With the above structure, the high and medium frequency signals can be up-converted to Ka band signals, and in one embodiment, the fourth attenuator is a fixed value attenuator. The multi-channel band-pass filter circuit comprises an input end switch filter component; two band-pass filters respectively connected with the input end switch filtering component; the output end switch filtering component is respectively connected with the output ends of the two band-pass filters; different bandpass filter circuits can be switched.
The final filtering block 130 includes: a fifth attenuator connected to the second mixer; a band-pass filter connected to the fifth attenuator; a fourth power amplifier connected to the band pass filter; a sixth attenuator connected to the fourth power amplifier; a fifth power amplifier connected to the sixth attenuator; and the band-pass filter is connected with the fifth power amplifier. The final filtering module 130 is provided with the structure to perform multi-stage filtering and amplification processing on the output signal of the second-stage up-conversion module 120, so that the requirement of subsequent components on signal gain is fully met. The sixth attenuator may be configured as a digital step attenuator to facilitate adjustment of the gain of the final filtering block 130. The final filtering block 130 is provided with a coupler connected to a band pass filter after the fifth power amplifier; a second power divider connected with the coupling end of the coupler; and the detector interface is connected with the first output end of the two power dividers. In this way, the output power of the Ka band up-conversion module 100 may be detected by using a detector, and meanwhile, a power divider may be used, or a power output interface may be additionally provided.
As shown in fig. 3, the first local oscillation module 220 includes a first low-pass filtering and amplifying circuit; the frequency multiplier is connected with the first low-pass filtering amplification circuit; the second low-pass filtering amplifying circuit is connected with the frequency multiplier; the DDS module is connected with the first low-pass filtering amplifying circuit; the third low-pass filtering amplifying circuit is connected with the DDS module; a first phase-locked loop circuit 221 connected to the third low-pass filter amplifier circuit; and a first phase-locked loop circuit 221; a fourth low-pass filter amplifier circuit connected to the first phase-locked loop circuit 221; the first coupler is connected with the fourth low-pass filtering amplification circuit; the output end of the first coupler is connected with the first local oscillator end of the first-stage up-conversion module 110; the coupling end of the first coupler is connected with the control module 300.
In an embodiment, a first phase-locked loop in the first local oscillator module 220 may be connected to the control module 300, and a coupling end of the first coupler is connected to the control module 300, so that on one hand, the output frequency of the first local oscillator may be controlled by the control module 300; on the other hand, the first phase-locked loop may also be monitored, and the output power of the first local oscillator module 220 may be detected at the same time.
The second local oscillation module 230 includes an amplifier connected to the divider 210; a second phase-locked loop circuit 231 connected to the amplifier; a frequency doubler connected to the second phase-locked loop circuit 231; the band-pass filtering amplifying circuit is connected with the frequency doubler; the second coupler is connected with the band-pass filtering amplifying circuit; the output end of the second coupler is connected with the second local oscillator end of the secondary up-conversion module 120; the coupling end of the second coupler is connected with the control module 300.
In this way, the output power of the second local oscillation module 230 may be detected while controlling the output power of the second local oscillation module 230.
As shown in fig. 4, the power supply module 400 includes a filter 410; a DC/DC module 420 connected to the filter 410; a first power supply module 430 connected to the DC/DC module 420; a second power supply module 440 connected to the DC/DC module 420; a third power supply module 450 connected to the DC/DC module 420; the first power supply module 430 is connected with the Ka-band up-conversion module 100; the second power supply module 440 is connected with the frequency source module 200; the third power supply module 450 is connected with the control module 300; the control module 300 is connected with a first power supply module 430 and a second power supply module 440. The first power supply module 430, the second power supply module 440, and the third power supply module 450 are each provided with a DC/DC converter and a corresponding Low Dropout Regulator (LDO).
Through the mode, the plurality of power supply modules can supply power for components in each module in the Ka-band exciter 100, so that the voltage requirements of different components are fully met, and the reliability of power supply is ensured.
As shown in fig. 5, the control module 300 includes a controller; a temperature detection unit 310 connected to the controller; a power module detecting unit 320 connected to the controller; an alarm unit 330 connected to the controller; a display unit 340 connected to the controller; a communication interface 350 connected to the controller.
In one embodiment, the controller may be an fpga (field Programmable Gate array) controller. The temperature detection unit 310 may be a PT100 temperature sensor, and is disposed inside the Ka-band exciter 100. The power module detecting unit 320 includes a voltage detecting sensor and a current detecting sensor, and can detect a current value and a voltage value of the power module 400 in real time. The alarm unit 330 may be an audible and visual alarm, and performs alarm prompting when the temperature inside the Ka-band exciter 100 exceeds an early warning value or the current value and the voltage value of the power module 400 exceed a set fluctuation upper limit. The display unit 340 is an LCD display screen or an LED display screen, and can display information such as operating parameters of the Ka-band exciter 100, temperature in the Ka-band exciter 100, and voltage and current of the power module 400 of each module in real time. The communication interface 350 includes a plurality of USB interfaces, an RS422 communication interface, and a network cable interface, and can be connected to a plurality of external devices, and can also perform data interaction with a plurality of types of communication devices. The controller is connected to the first power supply module 430 and the second power supply module 440, and can control output voltages of the two power supply modules. The Ka band up-conversion module 100 is connected with a controller, and the controller can control a numerical control attenuator in the Ka band up-conversion module 100; the frequency source module 200 is connected to a controller, and the controller may control the DDS module in the first local oscillation module 220; the phase-locked loop circuits in the first local oscillator module 220 and the second local oscillator module 230 are controlled and monitored simultaneously. The coupling ends of the couplers in the first local oscillation module 220 and the second local oscillation module 230 are connected to the controller, and the output powers of the first local oscillation module 220 and the second local oscillation module 230 are detected through the corresponding coupling ends.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (7)
1. A Ka-band exciter, comprising: a Ka band up-conversion module; the frequency source module is connected with the Ka waveband up-conversion module; the control module is connected with the frequency source module; the power supply module is connected with the control module;
the Ka band up-conversion module comprises a primary up-conversion module; the second-level up-conversion module is connected with the first-level up-conversion module; the final stage filtering module is connected with the two-stage up-conversion module;
the frequency source module comprises a divider; the first local oscillator module is connected with a first output end of the divider; the second local oscillator module is connected with the second output end of the divider;
the output end of the first local oscillator module is connected with the first local oscillator end of the first-stage up-conversion module; the output end of the second local oscillator module is connected with the second local oscillator end of the second-stage up-conversion module;
the control module is connected with the first local oscillation module and the second local oscillation module.
2. The Ka-band exciter of claim 1, wherein the primary upconversion module comprises a first attenuator; a first power amplifier connected to the first attenuator; a second attenuator connected to the first power amplifier; a second power amplifier connected to the second attenuator; a third attenuator connected to the second power amplifier; a first mixer is connected with the third attenuator; and the first local oscillator end is connected with the frequency mixer.
3. The Ka-band exciter of claim 1, wherein the two-stage up-conversion module comprises a multi-channel bandpass filter circuit; the third power amplifier is connected with the multi-channel band-pass filter circuit; a first band pass filter connected to the third power amplifier; a fourth attenuator connected to the first band pass filter; a second mixer connected to the fourth attenuator; and the second local oscillator end is connected with the second frequency mixer.
4. The Ka-band exciter of claim 1, wherein the first local oscillator module comprises a first low pass filter amplifier circuit; the frequency multiplier is connected with the first low-pass filtering amplification circuit; the second low-pass filtering amplifying circuit is connected with the frequency decade multiplier; the DDS module is connected with the first low-pass filtering amplifying circuit; the third low-pass filtering amplifying circuit is connected with the DDS module; the first phase-locked loop circuit is connected with the third low-pass filtering amplification circuit; and the first phase-locked loop circuit; the fourth low-pass filtering amplification circuit is connected with the first phase-locked loop circuit; the first coupler is connected with the fourth low-pass filtering amplification circuit; the output end of the first coupler is connected with the first local oscillator end of the first-stage up-conversion module; and the coupling end of the first coupler is connected with the control module.
5. The Ka band exciter of claim 1, wherein the second local oscillator module comprises an amplifier coupled to the splitter; a second phase-locked loop circuit connected to the amplifier; the frequency doubler is connected with the second phase-locked loop circuit; the band-pass filtering amplifying circuit is connected with the frequency doubler; the second coupler is connected with the band-pass filtering amplifying circuit; the output end of the second coupler is connected with a second local oscillator end of the secondary up-conversion module; and the coupling end of the second coupler is connected with the control module.
6. The Ka-band exciter of claim 1, wherein the power module comprises a filter; a DC/DC module connected to the filter; a first power supply module connected to the DC/DC module; a second power supply module connected to the DC/DC module; a third power supply module connected to the DC/DC module; the first power supply module is connected with the Ka waveband up-conversion module; the second power supply module is connected with the frequency source module; the third power supply module is connected with the control module; the control module is connected with the first power supply module and the second power supply module.
7. The Ka-band exciter of claim 1, wherein the control module comprises a controller; the temperature detection unit is connected with the controller; the power module detection unit is connected with the controller; the alarm unit is connected with the controller; a display unit connected with the controller; a communication interface connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922335208.XU CN210744116U (en) | 2019-12-23 | 2019-12-23 | Ka wave band exciter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922335208.XU CN210744116U (en) | 2019-12-23 | 2019-12-23 | Ka wave band exciter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210744116U true CN210744116U (en) | 2020-06-12 |
Family
ID=70990402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922335208.XU Active CN210744116U (en) | 2019-12-23 | 2019-12-23 | Ka wave band exciter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210744116U (en) |
-
2019
- 2019-12-23 CN CN201922335208.XU patent/CN210744116U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5404114A (en) | Method and apparatus for providing transmitter protection | |
| CN210744116U (en) | Ka wave band exciter | |
| CN112462667A (en) | Split type high-power source control method and system | |
| CN112702073A (en) | Microwave power source control device and method | |
| CN110687493A (en) | Current transformer on-line measuring system based on multiple signal acquisition | |
| CN109450588A (en) | Support the radio signal shielding device and screen method of alarm device input and output control | |
| CN108449052A (en) | A kind of W-waveband High Degree Frequency Multiplier | |
| CN203243310U (en) | Microwave signal source | |
| CN210296847U (en) | Multi-parameter interlocking terminal device based on excimer laser | |
| CN103297044A (en) | Microwave signal source and method for producing microwave signal | |
| AU653377B2 (en) | An oscillator unit with improved frequency stability | |
| CN203261300U (en) | Radio-frequency variable attenuator | |
| CN104330794A (en) | SAR echo simulator synchronization device and synchronization method | |
| CN112462666B (en) | Split type high power source control system and split type high power source | |
| CN205453665U (en) | Microwave frequency source module integrates | |
| CN215581106U (en) | X-waveband ultra-low phase noise oscillator | |
| CN113725062B (en) | Ion trap radio frequency device | |
| CN218548344U (en) | Electronic molded case circuit breaker with overload alarm signal output | |
| CN213402946U (en) | Medium power amplifier | |
| CN111162741B (en) | Digital power amplifier and matched filtering method | |
| CN210899137U (en) | High-overload short-distance ranging radio frequency circuit | |
| CN207691783U (en) | A kind of wideband frequency source module and broadband receiver | |
| CN209134366U (en) | A kind of standby heating system of switched mode power amplifier | |
| CN115314169B (en) | Signal generation system and method | |
| CN107276588A (en) | A kind of low harmony wave phase locked source circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |