CN211905517U - Multi-frequency multiplex signal detection device and microwave generation equipment - Google Patents
Multi-frequency multiplex signal detection device and microwave generation equipment Download PDFInfo
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- CN211905517U CN211905517U CN201922501894.3U CN201922501894U CN211905517U CN 211905517 U CN211905517 U CN 211905517U CN 201922501894 U CN201922501894 U CN 201922501894U CN 211905517 U CN211905517 U CN 211905517U
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Abstract
The application relates to the technical field of microwaves, and provides a multi-frequency multiplexing signal detection device and microwave generation equipment. The multi-frequency multiplexing signal detection device comprises a transmission directional coupler, a reflection directional coupler, a single-pole double-throw switch, a filtering module and a detector which are sequentially connected; the transmission directional coupler and the reflection directional coupler are sequentially connected, and the coupling output ends of the transmission directional coupler and the reflection directional coupler are respectively connected with two movable contacts of the single-pole double-throw switch; the input end of the filtering module is connected with the common end of the single-pole double-throw switch, and the output end of the filtering module is connected with the detector; and the input end of the detector is connected with the common end of the single-pole multi-throw switch through a filtering module. The multi-frequency multiplexing signal detection device provided by the application can achieve the purpose of accurately controlling the microwave transmitting power.
Description
[ technical field ] A method for producing a semiconductor device
The application relates to the technical field of microwaves, in particular to a multi-frequency multiplexing signal detection device and microwave generation equipment.
[ background of the invention ]
During the generation and transmission of microwave signals, the microwave transmitting power often affects the radiation frequency and radiation energy of each frequency band. Therefore, how to accurately control the microwave transmitting power of each frequency is an important link of microwave control. For the microwave generating equipment, the precise control of the microwave transmitting power determines the determining factors of the precise output of the radiation frequency and the radiation energy. Especially for applications such as microwave therapy, precise control of the microwave emission power determines the efficiency of the therapy.
[ Utility model ] content
In order to achieve the technical purpose of accurately controlling the microwave transmitting power, the following technical scheme is specially provided:
in a first aspect, the present application provides a multi-frequency multiplexing signal detection apparatus, including:
the transmission directional coupler, the reflection directional coupler, the single-pole double-throw switch, the filtering module and the wave detector are sequentially connected;
the input end of the transmission directional coupler is used for accessing a main signal, the output end of the transmission directional coupler is connected with the input end of the reflection directional coupler, and the coupling end of the transmission directional coupler is connected with the first movable contact of the single-pole double-throw switch; the coupling end of the reflection directional coupler is connected with a second movable contact of the single-pole double-throw switch; the common end of the single-pole double-throw switch is connected with the input end of the filtering module, and the output end of the filtering module is connected with the input end of the detector;
the transmission directional coupler is used for receiving a main signal and coupling a forward microwave signal from the main signal;
the reflection directional coupler is used for receiving a reverse signal and coupling a reverse microwave signal from the reverse signal;
the single-pole double-throw switch is used for sending the forward microwave signal or the reverse microwave signal to the filtering module;
the filtering module is used for filtering the forward microwave signal or the reverse microwave signal;
and the wave detector detects the forward microwave signal or the reverse microwave signal of each frequency band output by the filtering module in a filtering mode and outputs a detection voltage signal.
In one embodiment, the filtering module comprises a splitter, at least two filters, and a single-pole-multiple-throw switch; the input end of the splitter is connected with the common end of the single-pole double-throw switch;
the input end of each filter is connected with one of the output ends of the shunt, the output end of each filter is connected with one of the movable contacts of the single-pole multi-throw switch, and the common end of the single-pole multi-throw switch is connected with the input end of the detector;
the splitter is connected with the forward microwave signal or the reverse microwave signal from the single-pole double-throw switch, and the forward microwave signal or the reverse microwave signal is respectively sent to each filter for filtering and then sent to the detector; wherein each filter corresponds to a filtering frequency band.
In a second aspect, the present application provides a microwave generating apparatus comprising: a multi-frequency signal generating unit for generating a main signal including a plurality of frequency band microwave signals;
the input end of the broadband semiconductor amplifying unit is connected with the output end of the multi-frequency signal generating unit;
the multi-frequency multiplexed signal detection apparatus according to the first aspect, wherein an input terminal of the multi-frequency multiplexed signal detection apparatus is connected to an output terminal of the broadband semiconductor amplification unit;
the input end of the switch and shunt unit is used for connecting the output end of the multi-frequency multiplexing signal detection device;
the input end of the microwave radiator is connected with the output ends of the switch and the shunt unit;
and the system control unit is respectively connected with the multi-frequency signal generation unit, the broadband semiconductor amplification unit, the multi-frequency multiplexing signal detection device, the switch and shunt unit and the microwave radiator.
In one embodiment, the system control unit is further connected to the single-pole double-throw switch and the single-pole multi-throw switch, respectively.
In one embodiment, the multi-frequency signal generating unit includes: the single-frequency combiner comprises at least two single-frequency signal sources, signal regulators and a multi-frequency combiner, wherein the signal regulators correspond to the single-frequency signal sources one to one;
each single-frequency signal source is connected to the multi-frequency combiner through the corresponding signal conditioner; the output end of the multi-frequency combiner is connected with the broadband semiconductor amplifying unit.
In one embodiment, the signal conditioner comprises: the controllable attenuator, the controllable phase shifter and the high-speed radio frequency switch are connected in sequence;
the input end of the controllable attenuator is connected with the output end of the single-frequency signal source, and the output end of the high-speed radio frequency switch is connected with the input end of the multi-frequency combiner;
the controllable attenuator, the controllable phase shifter and the high-speed radio frequency switch are respectively connected with the system control unit and respectively correspondingly receive the attenuation control signal, the phase control signal and the pulse modulation signal.
In one embodiment, the switching and shunting unit includes: the system comprises a radio frequency switch, a multi-frequency filter shunt and a broadband filter;
the common end of the radio frequency switch is connected with the output end of the multi-frequency multiplexing signal detection device, and two movable contacts of the radio frequency switch are respectively connected with the input end of the multi-frequency filter shunt and the input end of the broadband filter; a plurality of output ends of the multi-frequency filter branching unit are connected with the microwave radiator; the output end of the broadband filter is connected with the microwave radiator.
In one embodiment, the microwave radiator comprises: a plurality of narrow-band radiation units, wherein a plurality of output ends of the multi-frequency filter splitter are correspondingly connected with the input ends of the narrow-band radiation units;
and the input end of the broadband radiation unit is connected with the output end of the broadband filter.
The application provides a multifrequency multiplex signal detection device passes through the forward microwave signal or the reverse microwave signal of each frequency channel of filtering module output detect to output detection voltage signal obtains corresponding forward power and reverse power, so that reach the purpose to microwave emission power's accurate control.
The microwave generating equipment provided by the application can radiate microwave signals of a plurality of frequency bands and broadband microwave signals, so that the microwave signals of the plurality of frequency bands can be generated and adjusted to be accurately controlled.
And, multiplex signal detection device microwave generating equipment of multifrequency that this application provided can cover a plurality of frequency channels of microwave therapy to can set up according to the treatment, select one or more frequency and carry out radiation therapy, can detect the effect of exerting of each frequency channel through load detection simultaneously, adjust phase parameter and reach best radiation therapy effect. The applied power of each frequency band can be accurately monitored and controlled, and the treatment effect is improved.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of a multi-frequency multiplexing signal detection apparatus according to an embodiment provided in the present application;
fig. 2 is a schematic structural diagram of a microwave generating device provided in an embodiment provided in the present application;
fig. 3 is a schematic structural diagram of a microwave generating device provided in another embodiment provided in the present application;
fig. 4 is a schematic structural diagram of a signal conditioner according to an embodiment of the present disclosure.
[ detailed description ] embodiments
The present application is further described with reference to the following drawings and exemplary embodiments, wherein like reference numerals are used to refer to like elements throughout. In addition, if a detailed description of the known art is not necessary to show the features of the present application, it is omitted.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a multi-frequency multiplexing signal detection apparatus according to an embodiment provided in the present application. The multi-frequency multiplexing signal detection apparatus 30 provided in the present application may be applied to a microwave generating device 100. The multi-frequency multiplexed signal detection apparatus 30 includes a transmission directional coupler 31, a reflection directional coupler 32, a single-pole double-throw switch 33, a filter module 34, and a detector 35. Wherein, the transmission directional coupler 31 and the reflection directional coupler 32 are connected in sequence in the main signal transmission direction of the corresponding microwave generating device 100. Wherein the transmission directional coupler 31 includes three ports, which are an input terminal 31a, an output terminal 31b and a coupling terminal 31 c; the reflective directional coupler 32 includes three ports, which are an input port 32a, an output port 32b, and a coupling port 32 c. The input terminal 31a of the transmission directional coupler 31 is used for receiving a main signal, and the output terminal 31b of the transmission directional coupler 31 is connected with the input terminal 32a of the reflection directional coupler 32.
In this application, the input terminal of each part is denoted by the letter "a", and the output terminal is denoted by the letter "b".
The single-pole double-throw switch 33, the filter module 34 and the detector 35 are connected in sequence in the direction of detecting and transmitting the microwave signals coupled by the transmission directional coupler 31 and the reflection directional coupler 32. The single pole double throw switch 33 includes three connection points including a first movable contact 33a, a second movable contact 33b and a common terminal 33 c. And the filtering module 34 includes two ports, an input 34a and an output 34 b. The coupling end 31c of the transmission directional coupler 31 is connected with the first movable contact 331 of the single-pole double-throw switch 33; the coupling end 32c of the reflective directional coupler 32 is connected with the second movable contact 33b of the single-pole double-throw switch 33; the common terminal 33c of the single-pole double-throw switch 33 is connected with the input terminal 34a of the filter module 34, and the output terminal 34b of the filter module 34 is connected with the input terminal 35a of the detector 35.
In the process of detection by the multi-frequency multiplexing signal detection apparatus 30, the transmission directional coupler 31 receives the main signal transmitted back from the previous unit, and couples the main signal to obtain a forward microwave signal. In the present application, the direction in which the main signal is transmitted is set to the forward direction, and the direction opposite to the forward direction is set to the reverse direction. In contrast, the reflective directional coupler 32 receives the backward signal, and couples the backward signal to obtain a backward microwave signal. The reverse signal may be a reflection from the load or a reflection from a subsequent unit of the corresponding microwave generating device 100.
The single-pole double-throw switch 33 is used for sending the connected microwave signal to the filtering module 34 after the forward microwave signal or the backward microwave signal is connected. When the filtering module 34 receives the forward microwave signal or the reverse microwave signal, it filters the forward microwave signal or the reverse microwave signal, and detects the obtained filtering signal, i.e. the forward microwave signal or the reverse microwave signal of each frequency band output by the filtering module 34, and outputs a detection voltage signal to obtain corresponding forward power and reverse power, so as to achieve the purpose of accurately controlling the microwave transmitting power.
On this basis, the filtering module 34 includes a splitter 341, a filter 342, and a single-pole-multi-throw switch 343. Wherein the filter 342 comprises at least two different single-frequency filters, each movable contact 343a of the single-pole multi-throw switch 343 corresponds to one single-frequency filter 342, and the common terminal 343b thereof is connected with the detector 35.
According to the internal connection of the filtering module 34, the splitter 341 receives the forward microwave signal or the reverse microwave signal from the single-pole double-throw switch 33, splits the forward microwave signal or the reverse microwave signal to obtain a plurality of single-frequency microwave signals, and sends the single-frequency microwave signals to each filter for filtering, and then sends the single-frequency microwave signals to the detector 35 for detection, and outputs a detection voltage signal.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a microwave generating device according to an embodiment provided in the present application.
The present application further provides a microwave generating apparatus 100, which comprises a multi-frequency signal generating unit 10, a broadband semiconductor amplifying unit 20, a multi-frequency multiplexing signal detecting device 30, a switch and shunt unit 40, and a microwave radiator 50, which are electrically connected in sequence; the system control unit 60 is further included, and the system control unit 60 is electrically connected to the multi-frequency signal generation unit 10, the wideband semiconductor amplification unit 20, the multi-frequency multiplexing signal detection device 30, and the switch and shunt unit 40, respectively, and sends out control signals.
The specific connection relationship is as follows: the input terminal 20a of the broadband semiconductor amplifying unit 20 is connected to the output terminal 10b of the multi-frequency signal generating unit 10, the input terminal 30a of the multi-frequency multiplex signal detecting device 30 is connected to the output terminal 20b of the broadband semiconductor amplifying unit 20, the input terminal 40a of the switch and the branching unit 40 is connected to the output terminal 30b of the multi-frequency multiplex signal detecting device 30, and the input terminal 50a of the microwave radiator 50 is connected to the output terminal 40b of the switch and the branching unit 40.
The multi-frequency signal detection apparatus 30 is the multi-frequency signal detection apparatus 30 provided above, and is configured to couple and detect the main signal or the reverse signal, and output a detection voltage signal to the system control unit 60.
The multi-frequency signal generating unit 10 is located at the front end of the whole microwave generating device 100, and is configured to generate a main signal, where the main signal includes a plurality of frequency band microwave signals. The frequencies of the multiple band microwave signals are labeled F1, F2 … FN in this application.
And the broadband semiconductor amplifying unit 20 connected to the multi-frequency signal generating unit 10. In this embodiment, the broadband semiconductor amplifying unit 20 is composed of a multi-level GaN (gallium nitride) ultra-wideband power amplifier tube, has a wide operating bandwidth, and can cover the frequency bands from F1 to FN, and a plurality of microwave signals generated by the multi-frequency signal generator can simultaneously enter the broadband semiconductor amplifying unit to be amplified to a rated power.
The broadband semiconductor amplification unit 20 is composed of a multi-level GaN (gallium nitride) ultra-wideband power amplification tube, has a wide working bandwidth, can cover the frequency bands from f1 to fN, and can simultaneously feed signals generated by the multi-frequency signal generator into the broadband semiconductor power amplification unit for amplification. The amplified microwave signal will be transmitted to the multiplex signal detection unit.
The switching and splitting unit 40 receives the main signal from the multi-frequency multiplexed signal detection device 30, and splits the main signal.
The branched microwave signal is transmitted to the microwave radiator 50, and microwave radiation energy is output from the microwave radiator 50.
The microwave that this application provided takes place the signal, by the primary signal that multifrequency signal generation unit 10 sent passes through respectively broadband semiconductor amplification unit 20 with multifrequency multiplex signal detection device 30's amplification and detection back can obtain the accurate control that realizes microwave emission power.
In this embodiment, the single-pole double-throw switch 33 and the single-pole multi-throw switch 343 in the microwave generating apparatus 100 are respectively connected to the system control unit 60. The system control unit 60 sends control signals to the single-pole double-throw switch 33 and the single-pole multi-throw switch 343 to control the single-pole double-throw switch 33 and the single-pole multi-throw switch 343 to turn on the forward and reverse microwave signals or the filtered single-frequency microwave signal.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a microwave generating device according to another embodiment provided in the present application.
For the multi-frequency signal generation unit 10, it includes: at least two single-frequency sources 11, signal conditioners 12 in one-to-one correspondence with the respective single-frequency sources 11, and a multi-frequency combiner 13.
Each single frequency source 11 generates a frequency band of the original microwave signal, which in this embodiment may be generated by oscillation. In particular, the chip may be integrated by a dedicated source 11, or the original microwave signal may be generated for oscillation using discrete components.
The signal conditioner 12 is connected to the corresponding single-frequency signal source 11, controls the corresponding single-frequency original microwave signal, and synthesizes one path of microwave signal through the multi-frequency combiner 13, where the synthesized microwave signal is used as a main signal, and since the output end 13b of the multi-frequency combiner 13 is connected to the broadband semiconductor amplification unit 20a, the multi-frequency combiner 13 outputs the main signal to the broadband semiconductor amplification unit 20.
In the present embodiment, at the source 11 of the microwave signals, single-frequency control is implemented on each single-frequency microwave signal of the microwave signals, so that accurate control can be implemented on each single-frequency microwave signal accurately.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a signal conditioner according to an embodiment provided in the present application.
For the signal conditioner 12 comprises: a controllable attenuator 14, a controllable phase shifter 15 and a high-speed radio frequency switch 16 connected in sequence. The internal connection relationship of the signal conditioner 12 is as follows: the input end 14a of the controllable attenuator 14 is connected to the output end 11b of the single-frequency signal source 11, and the input end 15a and the output end 15b of the controllable phase shifter 15 are respectively connected to the output end 14b of the controllable attenuator 14 and the input end 16a of the high-speed radio frequency switch 16. The output end 16b of the high-speed radio frequency switch 16 is connected to the input end 13a of the multi-frequency combiner 13.
The controllable attenuator 14 is directly connected to a single-frequency microwave signal output by the single-frequency signal source 11, and the single-frequency microwave signal passes through the controllable phase shifter 15 and then is connected to the multi-frequency combiner 13 through the high-speed radio frequency switch 16.
The controllable attenuator 14, the controllable phase shifter 15 and the high-speed radio frequency switch 16 are respectively connected with the system control unit 60, and respectively receive the attenuation control signal, the phase control signal and the pulse modulation signal;
the controllable attenuator 14 adjusts the attenuation processing of the input single-frequency original microwave signal according to the attenuation control signal. Then, the controllable phase shifter 15 performs phase modulation on the corresponding input signal according to the phase control signal, and finally, the high-speed rf switch 16 performs pulse modulation on the corresponding input signal according to a pulse modulation signal.
The signal conditioner 12 controls the size, phase and pulse of the original single-frequency microwave signal, so as to accurately control the output main signal, and facilitate the subsequent detection and adjustment of the microwave emission function.
If the microwave generating apparatus 100 is used for therapeutic purposes, the microwave absorption efficiency can be optimized by adjusting the microwave frequency and the microwave phase according to the microwave absorption condition of the therapeutic object, so as to provide therapeutic effects.
For the switching and shunting unit 40: a radio frequency switch 41, a multifrequency filter splitter 42 and a broadband filter 43.
The common terminal of the rf switch 41 is connected to the output terminal of the multi-frequency multiplexing signal detecting device 30, and two movable contacts 41a and 41b thereof are respectively connected to the input terminal 42a of the multi-frequency filter splitter 42 and the input terminal 43a of the broadband filter 43, for connecting the multi-frequency filter splitter 42 or the broadband filter 43, and selectively connecting the single-frequency microwave signal or the broadband microwave signal.
A plurality of outputs of the multifrequency filter splitter 42 are connected to the microwave radiators 50. The multi-frequency filter splitter 42 is configured to split the main signal accessed by the multi-frequency multiplexing signal detection apparatus 30, and output microwave signals of multiple frequency bands to the microwave radiator 50;
the output 43b of the broadband filter 43 is connected to the microwave radiator 50. The broadband filter 43 is configured to filter the main signal accessed by the multi-frequency multiplexing signal detection apparatus 30, and output a broadband microwave signal to the microwave radiator 50.
The microwave radiator 50 includes: a plurality of narrow-band radiating elements 51 and a wide-band radiating element 52. A plurality of output terminals 42b of the multi-frequency filter splitter 42 are correspondingly connected to the input terminals 51a of the narrow-band radiating units 51, and the input terminal 52a of the wide-band radiating unit 52 is connected to the output terminal 43b of the wide-band filter 43. According to the transmitted microwave signal, the corresponding part of the switch and shunt unit 40 is connected, and the corresponding output microwave signal is accessed. Specifically, each narrow-band radiating unit 51 is connected to the multi-frequency filter splitter 42, and the wide-band radiating unit is connected to the wide-band filter 43.
The narrowband radiation unit 51 receives the corresponding single-frequency microwave signal from the multi-frequency filter splitter 42, and radiates the single-frequency microwave signal.
The broadband filter 43 receives the corresponding broadband microwave signal from the broadband filter 43, and radiates the broadband microwave signal.
The above are all embodiments of the present application relating to a multi-frequency multiplexed signal detection apparatus and a microwave generating device.
The microwave generating device 100 provided by the present application can radiate microwave signals in multiple frequency bands and broadband microwave signals, so as to realize the generation and adjustment of microwave signals in multiple frequency bands for precise control.
Also, the microwave generating apparatus 100 may be used in the medical field. Specifically, the microwave radiation unit is a transmission unit of electromagnetic waves, which can radiate microwave energy to the subject, in this application, the narrow band radiation unit 51 can radiate microwave energy of a designated frequency band, and the wide band radiation unit can radiate microwave energy of all frequency bands F1 to FN.
From the theory of microwave technology, it is known that different frequencies penetrate medium at different depths, and the penetration depth is generally used to represent the attenuation capacity of the medium for microwave energy, and the penetration depth (D) is defined as the distance at which the microwave power is attenuated from the surface of the medium to 1/e of the surface value. The penetration depth can be used
Is calculated, where λ0The wavelength in vacuum is' the relative dielectric constant of the medium and the loss tangent of the medium. From the penetration depth calculation formula, the longer the wavelength of the incident microwave, the smaller the relative dielectric constant of the medium, the smaller the loss, and the deeper the penetration depth, and the higher the microwave frequency, the faster the generated heat, and the formula for absorbing the microwave energy by the medium is P ═ 2 pi fr 0tanE2As can be seen from the formula, the higher the frequency, the more microwave energy absorbed by the medium, and the faster the heating rate, in practical application, different treatment requirements correspond to different treatment depths and heating rates, so different frequencies need to be selected.
The microwave generating device 100 provided by the present application can simultaneously perform microwave radiation therapy on a plurality of treatment sites by using radiation antennas of a plurality of frequency bands, and can also realize microwave energy of a plurality of frequency bands, and perform simultaneous treatment on different areas of a shallow, medium and deep treatment on a treatment object by using one broadband radiation unit, and can also combine the above two ways to meet the treatment needs of different sites and different levels. According to the above analysis, the microwave generating apparatus 100 has advantages of flexibly selecting a treatment frequency in combination with a specific heating target, optimizing microwave absorption efficiency in real time, effectively solving a penetration depth problem, and achieving an optimal treatment effect.
Claims (8)
1. A multi-frequency multiplexing signal detection device is characterized by comprising a transmission directional coupler, a reflection directional coupler, a single-pole double-throw switch, a filtering module and a detector which are sequentially connected;
the input end of the transmission directional coupler is used for accessing a main signal, the output end of the transmission directional coupler is connected with the input end of the reflection directional coupler, and the coupling end of the transmission directional coupler is connected with the first movable contact of the single-pole double-throw switch; the coupling end of the reflection directional coupler is connected with a second movable contact of the single-pole double-throw switch; the common end of the single-pole double-throw switch is connected with the input end of the filtering module, and the output end of the filtering module is connected with the input end of the detector;
the transmission directional coupler is used for receiving a main signal and coupling a forward microwave signal from the main signal;
the reflection directional coupler is used for receiving a reverse signal and coupling a reverse microwave signal from the reverse signal;
the single-pole double-throw switch is used for sending the forward microwave signal or the reverse microwave signal to the filtering module;
the filtering module is used for filtering the forward microwave signal or the reverse microwave signal;
and the wave detector detects the forward microwave signal or the reverse microwave signal of each frequency band output by the filtering module in a filtering mode and outputs a detection voltage signal.
2. The apparatus according to claim 1, wherein the filtering module comprises a splitter, at least two filters, and a single-pole-multiple-throw switch; the input end of the splitter is connected with the common end of the single-pole double-throw switch;
the input end of each filter is connected with one of the output ends of the shunt, the output end of each filter is connected with one of the movable contacts of the single-pole multi-throw switch, and the common end of the single-pole multi-throw switch is connected with the input end of the detector;
the splitter is connected with the forward microwave signal or the reverse microwave signal from the single-pole double-throw switch, and the forward microwave signal or the reverse microwave signal is respectively sent to each filter for filtering and then sent to the detector; wherein each filter corresponds to a filtering frequency band.
3. A microwave generating apparatus, comprising:
a multi-frequency signal generating unit for generating a main signal including a plurality of frequency band microwave signals;
the input end of the broadband semiconductor amplifying unit is connected with the output end of the multi-frequency signal generating unit;
the multi-frequency multiplexed signal detection device of claim 2, an input terminal of the multi-frequency multiplexed signal detection device is connected to an output terminal of the broadband semiconductor amplification unit;
the input end of the switch and shunt unit is used for connecting the output end of the multi-frequency multiplexing signal detection device;
the input end of the microwave radiator is connected with the output ends of the switch and the shunt unit;
and the system control unit is respectively connected with the multi-frequency signal generation unit, the broadband semiconductor amplification unit, the multi-frequency multiplexing signal detection device, the switch and shunt unit and the microwave radiator.
4. A microwave generating device according to claim 3, wherein the system control unit is further connected to the single pole double throw switch and the single pole multiple throw switch, respectively.
5. A microwave generating apparatus according to claim 3, wherein the multi-frequency signal generating unit includes: the single-frequency combiner comprises at least two single-frequency signal sources, signal regulators and a multi-frequency combiner, wherein the signal regulators correspond to the single-frequency signal sources one to one;
each single-frequency signal source is connected to the multi-frequency combiner through the corresponding signal conditioner; the output end of the multi-frequency combiner is connected with the broadband semiconductor amplifying unit.
6. A microwave generating device according to claim 5, wherein the signal conditioner comprises: the controllable attenuator, the controllable phase shifter and the high-speed radio frequency switch are connected in sequence;
the input end of the controllable attenuator is connected with the output end of the single-frequency signal source, and the output end of the high-speed radio frequency switch is connected with the input end of the multi-frequency combiner;
the controllable attenuator, the controllable phase shifter and the high-speed radio frequency switch are respectively connected with the system control unit and respectively correspondingly receive the attenuation control signal, the phase control signal and the pulse modulation signal.
7. A microwave generating device according to claim 3, wherein the switching and shunting unit comprises: the system comprises a radio frequency switch, a multi-frequency filter shunt and a broadband filter;
the common end of the radio frequency switch is connected with the output end of the multi-frequency multiplexing signal detection device, and two movable contacts of the radio frequency switch are respectively connected with the input end of the multi-frequency filter shunt and the input end of the broadband filter; a plurality of output ends of the multi-frequency filter branching unit are connected with the microwave radiator; the output end of the broadband filter is connected with the microwave radiator.
8. A microwave generating apparatus according to claim 7, wherein the microwave radiator comprises: a plurality of narrow-band radiation units, wherein a plurality of output ends of the multi-frequency filter splitter are correspondingly connected with the input ends of the narrow-band radiation units;
and the input end of the broadband radiation unit is connected with the output end of the broadband filter.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111060743A (en) * | 2019-12-31 | 2020-04-24 | 京信通信系统（中国）有限公司 | Multi-frequency multiplex signal detection device, microwave generation equipment and control method |
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| CN111060743A (en) * | 2019-12-31 | 2020-04-24 | 京信通信系统（中国）有限公司 | Multi-frequency multiplex signal detection device, microwave generation equipment and control method |
| CN111060743B (en) * | 2019-12-31 | 2024-10-29 | 京信网络系统股份有限公司 | Multi-frequency multiplexing signal detection device, microwave generation equipment and control method |
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