CN109768835B - Dual-band microwave signal generating device - Google Patents
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- CN109768835B CN109768835B CN201711052881.1A CN201711052881A CN109768835B CN 109768835 B CN109768835 B CN 109768835B CN 201711052881 A CN201711052881 A CN 201711052881A CN 109768835 B CN109768835 B CN 109768835B
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Abstract
The invention provides a dual-band microwave signal generating device which comprises a first band phase-locked source, a first band amplitude stabilizing unit, a first band numerical control attenuator, a first band modulator, a second band electric-tuning attenuator, a second band power control module, an output port and a real-time control unit, wherein the first band amplitude stabilizing unit is connected with the first band phase-locked source, the first band numerical control attenuator is connected with the first band amplitude stabilizing unit, the first band modulator is connected with the first band numerical control attenuator, the second band power control module is connected with the second band electric-tuning attenuator, and the real-time control unit is used for controlling the output port to be connected with the first band modulator or the second band power control module so as to output a first band microwave signal or a second band microwave signal. By applying the technical scheme of the invention, the technical problems of high price, low response speed and poor output power precision of the microwave signal generator in the prior art are solved.
Description
Technical Field
The invention relates to the technical field of radio testing, in particular to a dual-waveband microwave signal generating device.
Background
In radio testing, an excitation source is an indispensable testing device, and the excitation source generally adopts a signal generator as a signal generating device, which mainly generates microwave signals with specific frequency and specific power. The general microwave signal generator has a large bandwidth and a wide dynamic power range, and has various modulation functions, but the price is generally expensive. For a specific test scenario, most functions are wasted by adopting a general signal generator, and resource waste is caused. Meanwhile, the signal response speed of the existing signal generator is relatively slow, and the output power precision is poor.
Disclosure of Invention
The invention provides a dual-band microwave signal generating device which can solve the technical problems of high price, low response speed and poor output power precision of a microwave signal generator in the prior art.
The invention provides a dual-band microwave signal generating device, which comprises: the first wave band phase-locked source is used for generating a constant amplitude signal of a first wave band; the first wave band amplitude stabilizing unit is connected with a first wave band phase-locked source and is used for ensuring the stability of the output power of each frequency point of the constant-amplitude signal; the first wave band numerical control attenuator is connected with the first wave band amplitude stabilizing unit and is used for adjusting the signal power of the constant-amplitude signal after amplitude stabilization; the first band modulator is connected with the first band numerical control attenuator and is used for carrying out pulse modulation on the attenuated constant-amplitude signal; the second wave band electrically-tuned attenuator is used for adjusting the signal power of a second wave band input signal; the second waveband power control module is connected with the second waveband electrically-tuned attenuator and is used for amplifying the signal power of the attenuated second waveband input signal; the output port is selectively connected with the first band modulator or the second band power control module; and the real-time control unit is used for controlling the output port to be connected with the first waveband modulator or the second waveband power control module so as to output the first waveband microwave signal or the second waveband microwave signal.
Furthermore, the dual-band microwave signal generating device further comprises a microwave switch, and the real-time control unit controls the output port to be connected with the first band modulator or the second band power control module through the microwave switch.
Furthermore, the real-time control unit comprises a main control module, a key module and a display module, wherein the key module is used for receiving an external key instruction to determine a microwave band to be output, the main control module is used for controlling the output port to be connected with the first band modulator or the second band power control module, and the display module is used for displaying parameter information of the first band microwave signal and the second band microwave signal.
Furthermore, the second band power control module comprises a power amplifier, a power divider and a power detection unit which are connected in sequence, the power amplifier is used for amplifying the signal power of the attenuated second band input signal, the power divider is used for dividing the amplified signal into two paths and respectively outputting the two paths of signals to the power detection unit and the output port, and the real-time control unit adjusts the attenuation voltage of the second band electric attenuator in real time according to the difference value between the power value detected by the power detection unit and the preset value in the second band power control module.
Furthermore, the dual-band microwave signal generating device further comprises a power supply unit, and the power supply unit is respectively connected with the first band phase-locked source, the first band amplitude stabilizing unit, the first band numerical control attenuator, the first band modulator, the second band electrical modulation attenuator, the second band power control module and the real-time control unit.
Furthermore, the power supply unit comprises a power supply module and a power distribution board, wherein the power distribution board is used for filtering and converting an input voltage signal of the power supply module and a voltage signal required to be output and distributing power.
Furthermore, the dual-band microwave signal generating device further comprises a case, and the first band phase-locked source, the first band amplitude stabilizing unit, the first band numerical control attenuator, the first band modulator, the second band electrical modulation attenuator, the second band power control module, the power supply unit and the real-time control unit are all located in the case.
Furthermore, the output port is arranged on the case, the case is also provided with a second waveband input port, and a second waveband input signal enters the second waveband electrically tunable attenuator through the second waveband input port.
Further, the output port and the second band input port both comprise SMA-K radio frequency connectors, BNC type connectors or N type connectors.
Furthermore, the first band phase-locked source is an S-band phase-locked source, the first band amplitude-stabilizing unit is an S-band amplitude-stabilizing unit, the first band numerical-control attenuator is an S-band numerical-control attenuator, the first band modulator is an S-band modulator, the second band power control module is an X-band power control module, and the second band electrically-tuned attenuator is an X-band electrically-tuned attenuator.
By applying the technical scheme of the invention, the microwave signal of the first wave band can be actively generated, and the pulse modulation function of the signal can be realized according to the control requirement. Moreover, the dual-waveband microwave signal generating device can realize power amplification of the signal of the second waveband, and information is played back completely after the power amplification of the externally input radio frequency signal, so that the specific radar test is met. Meanwhile, the dual-waveband microwave signal generating device disclosed by the invention adopts a real-time control system, can accurately generate signals with set frequency and power in real time, enables radar testing to be more convenient, and has the advantages of high response speed, high output power precision and low price.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram illustrating a dual-band microwave signal generating apparatus according to an embodiment of the present invention.
Wherein the figures include the following reference numerals:
10. a first band phase-locked source; 20. a first wave band amplitude stabilizing unit; 30. a first band numerical control attenuator; 40. a first band modulator; 50. a second wave band electrically-tuned attenuator; 60. a second band power control module; 70. an output port; 71. a first output port; 72. a second output port; 80. a real-time control unit; 81. a main control module; 82. a key module; 83. a display module; 90. a microwave switch; 100. a power supply unit; 110. a chassis; 111. a second input port.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, for purposes of explanation and not limitation, specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the device structures and/or processing steps that are closely related to the scheme according to the present invention are shown in the drawings, and other details that are not so relevant to the present invention are omitted.
As shown in fig. 1, a dual-band microwave signal generating apparatus is provided according to an embodiment of the present invention, the dual-band microwave signal generating apparatus includes a first band phase-locked source 10, a first band amplitude-stabilizing unit 20, a first band numerical-control attenuator 30, a first band modulator 40, a second band electrically-tunable attenuator 50, a second band power control module 60, an output port 70, and a real-time control unit 80, wherein the first band phase-locked source 10 is configured to generate a constant-amplitude signal of a first band, the first band amplitude-stabilizing unit 20 is connected to the first band phase-locked source 10, the first band amplitude-stabilizing unit 20 is configured to ensure stability of output power of each frequency point of the constant-amplitude signal, the first band numerical-control attenuator 30 is connected to the first band amplitude-stabilizing unit 20, the first band numerical-control attenuator 30 is configured to adjust signal power of the constant-amplitude signal after amplitude stabilization, the first band modulator 40 is connected to the first band numerical-control attenuator 30, the first band modulator 40 is configured to perform pulse modulation on the attenuated constant amplitude signal, the second band electrically tunable attenuator 50 is configured to adjust a signal power of the second band input signal, the second band power control module 60 is connected to the second band electrically tunable attenuator 50, the second band power control module 60 is configured to amplify a signal power of the attenuated second band input signal, the output port 70 is selectively connected to the first band modulator 40 or the second band power control module 60, and the real-time control unit 80 is configured to control the output port 70 to be connected to the first band modulator 40 or the second band power control module 60 to output the first band microwave signal or the second band microwave signal.
By applying the configuration mode, the dual-waveband microwave signal generating device can actively generate the microwave signal of the first waveband and can realize the pulse modulation function of the signal according to the control requirement. Moreover, the dual-waveband microwave signal generating device can realize power amplification of the signal of the second waveband, and information is played back completely after the power amplification of the externally input radio frequency signal, so that the specific radar test is met. Meanwhile, the dual-waveband microwave signal generating device disclosed by the invention adopts a real-time control system, can accurately generate signals with set frequency and power in real time, enables radar testing to be more convenient, and has the advantages of high response speed, high output power precision and low price.
As a specific embodiment of the present invention, the first band phase-locked source 10 may be set as an S-band phase-locked source, the first band amplitude stabilizing unit 20 is set as an S-band amplitude stabilizing unit, the first band numerical control attenuator 30 is set as an S-band numerical control attenuator, the first band modulator 40 is set as an S-band modulator, the second band power control module 60 is set as an X-band power control module, and the second band electrical control attenuator 50 is set as an X-band electrical control attenuator. The X wave band only amplifies the power of an externally given input signal, and can meet specific radar tests.
Further, in the present invention, in order to realize that the output port 70 is selectively connected to the first band modulator 40 or the second band power control module 60 to output the first band microwave signal or the second band microwave signal, the dual-band microwave signal generating apparatus may be configured to further include a microwave switch 90, and the real-time control unit 80 controls the output port 70 to be connected to the first band modulator 40 or the second band power control module 60 through the microwave switch 90.
As a specific embodiment of the present invention, the output port 70 may be configured to include a first output port 71 and a second output port 72, and the microwave switch 90 is composed of two single-pole double-throw switches connected in series, wherein the first single-pole double-throw switch receives the first band signal from the first band modulator 40 or the second band signal from the second band power control module 60 and transmits the received signals to the second single-pole double-throw switch, and the output of the second single-pole double-throw switch is connected to the first output port 71 and the second output port 72. As an embodiment of the present invention, when the real-time control unit 80 selects to output the first band signal, at this time, the first single-pole double-throw switch is connected to the first band modulator 40, the first single-pole double-throw switch receives the signal from the first band modulator 40, the second single-pole double-throw switch is connected to the first output port 71, and the signal output by the first band modulator 40 is output through the first output port 71.
Further, in the present invention, in order to output the microwave signals of the specific band, the real-time control unit 80 may be configured to include a main control module 81, a key module 82 and a display module 83, the key module 82 is configured to receive an external key instruction to determine a microwave band to be output, the main control module 81 is configured to control the output port 70 to be connected to the first band modulator 40 or the second band power control module 60, and the display module 83 is configured to display parameter information of the first band microwave signal and the second band microwave signal.
With this configuration, when outputting the microwave signal, the operating key module 82 is first operated to determine the band to be operated and the output channel. Then, if the current band is the first band, the real-time control unit 80 determines the output frequency, power and modulation parameters of the first band according to the input parameters of the key module 82, and simultaneously sends the control command to the first band phase-locked source 10, the first band numerical control attenuator 30, the first band modulator 40 and the microwave switch 90; if the current band is the second band, the real-time control unit 80 only needs to send a control command to the microwave switch 90. Specifically, the parameter information of the first waveband microwave signal comprises information of frequency, power, pulse modulation frequency, pulse width and the like of an S waveband, and the parameter information of the second waveband microwave signal comprises information of modulation frequency, pulse width and the like of a second waveband.
Further, in the present invention, in order to achieve the consistency of the power amplification factor in the second band channel, the second band power control module 60 may be configured to include a power amplifier, a power divider and a power detection unit, which are connected in sequence, where the power amplifier is configured to amplify the signal power of the attenuated second band input signal, the power divider is configured to divide the amplified signal into two paths, and output the two paths of signals to the power detection unit and the output port 70, respectively, and the real-time control unit 80 adjusts the attenuation voltage of the second band electrically tunable attenuator 50 in real time according to the difference between the power value detected by the power detection unit and the preset value in the second band power control module 60.
By applying the configuration, the power amplifier receives the signal output from the second band electrically tunable attenuator 50, performs fixed power amplification in the frequency band, and outputs the signal to the power divider, the power divider outputs one path of the signal to the microwave switch 90 and the other path of the signal to the power detection unit, and the power detection unit performs power detection, compares the signal with a preset value in the real-time control unit 80, and then adjusts the attenuation voltage of the second band electrically tunable attenuator 50 in real time, thereby achieving the consistency of the power amplification factor in the second band channel.
In the present invention, in order to ensure the normal operation of the dual-band microwave signal generating device, the dual-band microwave signal generating device may be configured to further include a power supply unit 100, and the power supply unit 100 is respectively connected to the first band phase-locked source 10, the first band amplitude stabilizing unit 20, the first band numerical control attenuator 30, the first band modulator 40, the second band electrical modulation attenuator 50, the second band power control module 60, and the real-time control unit 80.
As an embodiment of the present invention, the power supply unit 100 may be configured to include a power supply module and a power supply distribution board, wherein the power supply distribution board is configured to perform filtering transformation on an input voltage signal of the power supply module and a voltage signal to be output, and distribute power to the first band phase-locked source 10, the first band amplitude-stabilized unit 20, the first band numerical-control attenuator 30, the first band modulator 40, the second band electrical modulation attenuator 50, the second band power control module 60, and the real-time control unit 80.
Further, in the present invention, in order to realize integration of the signal generating device and protect and install various components in the signal generating device, the dual-band microwave signal generating device may be configured to further include a case 110, and the first band phase-locked source 10, the first band amplitude stabilizing unit 20, the first band numerical control attenuator 30, the first band modulator 40, the second band electrical modulation attenuator 50, the second band power control module 60, the power supply unit 100, and the real-time control unit 80 are all located in the case 110.
As a specific embodiment of the present invention, the chassis 110 is an aluminum alloy chassis with 2U (height) × 250mm (width) × 350mm (depth), the first band phase-locked source 10, the first band amplitude stabilizing unit 20, the first band numerical control attenuator 30, the first band modulator 40, the second band power control module 60, the second band electrical modulation attenuator 50, the power supply unit 100 and the real-time control unit 80 are all fixed on a chassis base plate through bolts, the chassis has front and rear panels, and the front panel fixes the display module 83 and the key module 82. The output port 70 is disposed on the case 110, the case 110 further has a second band input port 111, and the second band input signal enters the second band electrically tunable attenuator 50 through the second band input port 111. The first output port 71, the second output port 72, and the second band input port 111 are all mounted on the rear panel of the cabinet 110.
Further, in the present invention, the output port 70 and the second band input port 111 each comprise an SMA-K rf connector, a BNC connector, or an N connector. As a specific embodiment of the present invention, the first output port 71, the second output port 72, and the second band input port 111 are all SMA-K rf connectors, and a three-phase power plug and a ground terminal are mounted on the rear panel of the chassis 110.
For further understanding of the present invention, the structure and operation of the dual-band microwave signal generating apparatus of the present invention will be described in detail with reference to fig. 1.
As a specific embodiment of the present invention, the dual-band microwave signal generating apparatus includes an S-band phase-locked source, an S-band amplitude stabilizing unit, an S-band numerical control attenuator, an S-band modulator, an X-band electrical modulation attenuator, an X-band power control module, a first output port 71, a second output port 72, a second band input port 111, a chassis 110, a power supply unit 100, a microwave switch 90, and a real-time control unit 80, where the first output port 71 is an S-band output port, the second output port 72 is an X-band output port, and the second band input port 111 is an X-band input port.
The S-band phase-locked source is connected with the S-band amplitude-stabilized module, the S-band amplitude-stabilized module is connected with the S-band numerical control attenuator, the S-band numerical control attenuator is connected with the S-band modulator, the X-band electrical modulation attenuator is respectively connected with the X-band power control module and the X-band input port of the case 110, both the S-band modulator and the X-band power control module are connected with the microwave switch 90, the microwave switch 90 is connected with the S, X-band output port of the case 110, and the S-band phase-locked source, the S-band amplitude-stabilized unit, the S-band numerical control attenuator, the S-band modulator, the X-band electrical modulation attenuator, the X-band power control module, the first output port 71, the second output port 72, the second-band input port 111, the power supply unit 100, the microwave switch.
The S wave band phase-locked source actively generates continuous wave constant-amplitude signals of an S wave band, the power is 0dBm +/-3 dBm, and then the signals are transmitted to the S wave band amplitude stabilizing module. The S-band amplitude stabilizing module is provided with a singlechip control unit, and calibration parameters are set at different frequency points through a control algorithm in the singlechip during module debugging and calibration. In the operation of an actual module, the S-band amplitude stabilizing module measures power in real time through a built-in AD sampling unit, compares the measured power with a calibration parameter, adjusts power output, keeps the output power stable at a certain amplitude in the whole frequency band, and transmits a signal to the S-band numerical control attenuator. The S-band numerical control attenuator can receive the attenuation instruction of the real-time control unit 80, and complete the real-time attenuation setting of the power, so that the output power can have a large dynamic range. After receiving the signal from the S-band amplitude stabilizing module, the S-band digital controlled attenuator adjusts the power attenuation of the signal through the real-time control unit 80, and outputs the signal to the S-band modulator. The S-band modulator receives a control command from the real-time control unit 80, and performs a pulse modulation function on the signal.
After receiving the X-band radio frequency input signal from the chassis 110, the X-band electrically tunable attenuator adjusts the power attenuation of the signal by the real-time control unit 80, and outputs the signal to the X-band power control module. The X-band power control module comprises a power amplifier, a power divider and a power detection unit, wherein the power amplifier receives signals output by the X-band electrically-tunable attenuator, the signals are output to the power divider after fixed power amplification in a frequency band is carried out, the power divider outputs one path of signals to the microwave switch 90, the other path of signals is output to the power detection unit, the power detection unit carries out power detection, the attenuation voltage of the X-band electrically-tunable attenuator is adjusted in real time after the signals are compared with a preset value in the real-time control unit 80, and the consistency of power amplification multiples in an X-band channel is realized.
The real-time control unit 80 includes a main control module 81, a key module 82, and a display module 83, each of which is fixed in the housing 110 through a fixing hole and is powered by the power supply unit 100. The key module 83 receives an external key instruction to determine a microwave band to be output, and controls the S-band phase-locked source, the S-band amplitude stabilizing module, the S-band numerical control attenuator, the S-band modulator, the X-band electrical modulation attenuator, the X-band power control module, and the microwave switch 90, and the key module 83 may receive key information to change parameters displayed in the display module 83. The main control module 81 controls the output port 70 to be connected to the first band modulator 40 or the second band power control module 60, and the display module 83 displays parameter information of the S-band microwave signal and the X-band microwave signal. Specifically, the parameter information of the S-band microwave signal includes information such as frequency, power, pulse modulation frequency, pulse width of the S-band, and the parameter information of the X-band microwave signal includes information such as modulation frequency and pulse width of the X-band. Meanwhile, the display module 83 has a switch selection parameter to determine that the current band is an S band or an X band, and the output channel is an S band output channel or an X band output channel.
In the using process of the dual-band microwave signal generating device, the band to be operated and the output channel are determined by key operation firstly. Secondly, if the current band is an S-band, the real-time control unit 80 determines the output frequency, power and modulation parameters of the S-band according to the input parameters of the key module 83, and simultaneously sends a control instruction to the S-band phase-locked source, the S-band numerical control attenuator, the S-band modulator and the microwave switch 90; if the current band is the X band, the real-time control unit 80 only needs to send a control command to the microwave switch 90. Finally, the system outputs signals of a specific wave band in a specific channel according to the screen setting parameters of the display module 83.
Features that are described and/or illustrated above with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments and/or in combination with or instead of the features of the other embodiments.
It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof.
The many features and advantages of these embodiments are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of these embodiments which fall within the true spirit and scope thereof. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the embodiments of the invention to the exact construction and operation illustrated and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope thereof.
The invention has not been described in detail and is in part known to those of skill in the art.
Claims (10)
1. A dual-band microwave signal generating apparatus, comprising:
a first band phase-locked source (10), the first band phase-locked source (10) for generating a first band of constant amplitude signals;
the first waveband amplitude stabilizing unit (20), the first waveband amplitude stabilizing unit (20) is connected with the first waveband phase-locked source (10), and the first waveband amplitude stabilizing unit (20) is used for ensuring the stability of the output power of each frequency point of the constant-amplitude signal;
the first wave band numerical control attenuator (30), the first wave band numerical control attenuator (30) is connected with the first wave band amplitude stabilizing unit (20), and the first wave band numerical control attenuator (30) is used for adjusting the signal power of the constant amplitude signal after amplitude stabilization;
the first band modulator (40), the first band modulator (40) is connected with the first band numerical control attenuator (30), and the first band modulator (40) is used for performing pulse modulation on the attenuated constant-amplitude signal;
the second wave band electrically-tuned attenuator (50), wherein the second wave band electrically-tuned attenuator (50) is used for adjusting the signal power of a second wave band input signal;
the second band power control module (60), the second band power control module (60) is connected with the second band electrically-tuned attenuator (50), and the second band power control module (60) is used for amplifying the signal power of the attenuated second band input signal;
an output port (70), said output port (70) selectively connected with said first band modulator (40) or said second band power control module (60);
a real-time control unit (80), wherein the real-time control unit (80) is configured to control the output port (70) to be connected with the first band modulator (40) or the second band power control module (60) to output a first band microwave signal or a second band microwave signal.
2. Dual band microwave signal generation device according to claim 1, further comprising a microwave switch (90), wherein the real-time control unit (80) controls the output port (70) to connect with the first band modulator (40) or the second band power control module (60) through the microwave switch (90).
3. The dual-band microwave signal generating apparatus according to claim 1, wherein the real-time control unit (80) comprises a main control module (81), a key module (82), and a display module (83), the key module (82) is configured to receive an external key instruction to determine a microwave band to be output, the main control module (81) is configured to control the output port (70) to be connected to the first band modulator (40) or the second band power control module (60), and the display module (83) is configured to display parameter information of the first band microwave signal and the second band microwave signal.
4. The dual-band microwave signal generating apparatus according to claim 3, wherein the second band power control module (60) includes a power amplifier, a power divider and a power detection unit, which are connected in sequence, the power amplifier is configured to amplify the signal power of the attenuated second band input signal, the power divider is configured to divide the amplified signal into two paths and output the two paths of signals to the power detection unit and the output port (70), respectively, and the real-time control unit (80) adjusts the attenuation voltage of the second band electrically tunable attenuator (50) in real time according to a difference between the power value detected by the power detection unit and a preset value in the second band power control module (60).
5. Dual band microwave signal generation device according to any of claims 1 to 4, further comprising a power supply unit (100), wherein the power supply unit (100) is connected to the first band phase-locked source (10), the first band amplitude-stabilized unit (20), the first band numerical control attenuator (30), the first band modulator (40), the second band electrical attenuator (50), the second band power control module (60) and the real-time control unit (80), respectively.
6. Dual band microwave signal generation device according to claim 5, characterized in that the power supply unit (100) comprises a power supply module and a power distribution board for filtering and transforming the input voltage signal of the power supply module and the voltage signal to be output and performing power distribution.
7. The dual-band microwave signal generating apparatus according to claim 6, further comprising a case (110), wherein the first band phase-locked source (10), the first band amplitude-stabilizing unit (20), the first band numerical-control attenuator (30), the first band modulator (40), the second band electrical-tuning attenuator (50), the second band power control module (60), the power supply unit (100), and the real-time control unit (80) are all located in the case (110).
8. Dual band microwave signal generation device according to claim 7, characterized in that said output port (70) is arranged on said cabinet (110), said cabinet (110) further having a second band input port (111), said second band input signal entering said second band electrically tunable attenuator (50) through said second band input port (111).
9. Dual band microwave signal generation device according to claim 8, characterized in that said output port (70) and said second band input port (111) each comprise an SMA-K radio frequency connector, a BNC type connector or an N type connector.
10. The dual-band microwave signal generating apparatus according to claim 9, wherein the first band phase-locked source (10) is an S-band phase-locked source, the first band amplitude-stabilizing unit (20) is an S-band amplitude-stabilizing unit, the first band numerical-control attenuator (30) is an S-band numerical-control attenuator, the first band modulator (40) is an S-band modulator, the second band power control module (60) is an X-band power control module, and the second band attenuator (50) is an X-band electrical attenuator.
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| CN103825589A (en) * | 2014-01-21 | 2014-05-28 | 中国电子科技集团公司第四十一研究所 | Dual-channel output microwave signal source amplitude stabilization control device |
| CN106100659A (en) * | 2016-06-22 | 2016-11-09 | 安徽天兵电子科技有限公司 | A kind of subaisle X-band module of microwave components |
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| EP2461531A4 (en) * | 2009-09-16 | 2012-08-08 | Huawei Tech Co Ltd | Method for generating modulated signals and transmission device thereof |
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| CN103825589A (en) * | 2014-01-21 | 2014-05-28 | 中国电子科技集团公司第四十一研究所 | Dual-channel output microwave signal source amplitude stabilization control device |
| CN106100659A (en) * | 2016-06-22 | 2016-11-09 | 安徽天兵电子科技有限公司 | A kind of subaisle X-band module of microwave components |
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