High-power broadband pulse power amplifier transmitting module and power amplifier

Abstract

The invention provides a high-power broadband pulse power amplifier transmitting module and a power amplifier. The high-power broadband pulse power amplifier transmitting module comprises a power divider, a plurality of basic power modules and a synthesizer, an input power signal is divided into multiple paths of power sub-signals through the power divider, then each path of power sub-signal is amplified through the corresponding basic power module to obtain an amplified power signal, and the multiple paths of amplified power signals are synthesized through the synthesizer to output a power signal; wherein the basic power module comprises a power amplification chip and a time sequence protection circuit connected with the power amplification chip, and the time sequence protection circuit is used for carrying out time sequence control and protection on the power amplifier. According to the high-power broadband pulse power amplifier transmitting module, the multiple basic power modules are combined through the synthesizer, higher-power output can be achieved through combination and synthesis of the multiple basic power modules, the module size is small, high-power work can be borne, and the high-power broadband pulse power amplifier transmitting module is suitable for various harsh working environments.

Description

Technical Field

[0001] The present invention belongs to the field of communication technologies, and particularly relates to a high-power broadband pulsed power amplifier transmitting module and a power amplifier. Background Art

[0002] Facing the increasingly complex electromagnetic environment, various electronic devices, due to their own characteristics such as high precision and high sensitivity, thus expose more and more electromagnetic compatibility problems. Therefore, reducing the adverse effects brought by the electromagnetic environment and improving the adaptability to the complex electromagnetic environment have become urgent problems to be solved. The research on the electromagnetic environment effects of interference sources on electronic devices and experimental tests under complex electromagnetic environments is an important research content in the development of electronic information devices.

[0003] The power amplifier is an essential component in electromagnetic environment effect tests, capable of amplifying input signals in the microwave frequency band to achieve the desired output. Among them, the power amplifier transmitting module is the core component of the power amplifier. The electromagnetic environment effect tests have more stringent requirements for the frequency band coverage, gain, and output power of the power amplifier. The power amplifier transmitting modules used in traditional electromagnetic environment effect tests have relatively low power. However, with the continuous improvement of the requirements for electromagnetic environment effect tests, the experimental objects have developed from the module level to the system level, and the performance requirements for the power amplifier have also increased accordingly, posing higher demands on the performance of the power amplifier transmitting module, such as the frequency band, gain, and output power.

[0004] Therefore, there is an urgent need to develop a high-power broadband pulsed power amplifier transmitting module and a power amplifier to solve the above technical problems. Summary of the Invention

[0005] Embodiments of the present invention provide a high-power broadband pulsed power amplifier transmitting module and a power amplifier to solve the above technical problems.

[0006] In a first aspect, embodiments of the present invention provide a high-power broadband pulsed power amplifier transmitting module, including: a power splitter, a plurality of basic power modules, and a synthesizer;

[0007] The input power signal is divided into multiple power sub-signals by the power splitter, and then each power sub-signal is amplified by the corresponding basic power module to obtain amplified power signals. The multiple amplified power signals are synthesized by the synthesizer to output a power signal;

[0008] Among them, the basic power module includes: a power amplification chip and a timing protection circuit connected to the power amplification chip, and the timing protection circuit is used for timing control and protection of the power amplifier.

[0009] According to the module of the present invention, the operating frequency range of the power amplification chip is 8 GHz to 18 GHz.

[0010] For the module according to the present invention, the synthesizer adopts an eight-way waveguide synthesizer with a T-byte synthesis method. The working principle of the eight-way waveguide synthesizer is as follows: two four-way single-ridge waveguide synthesizers first perform the first synthesis, and then a two-way waveguide synthesizer that converts a single-ridge waveguide input to a double-ridge waveguide output performs the synthesis to form an eight-way waveguide synthesizer.

[0011] For the module according to the present invention, the synthesizer is a mirror synthesizer, and the power divider is a mirror synthesizer. The second harmonic of the power signal is suppressed through the mirror power splitting and combining network composed of the mirror synthesizer and the mirror synthesizer.

[0012] For the module according to the present invention, it further includes a voltage detection module connected to the basic power module for detecting the working voltage of the basic power module.

[0013] For the module according to the present invention, it further includes a current detection module connected to the basic power module for detecting the working current of the basic power module.

[0014] For the module according to the present invention, it further includes a temperature detection module connected to the basic power module for detecting the temperature of the basic power module.

[0015] For the module according to the present invention, it further includes an output power detection module connected to the basic power module for detecting the output power of the basic power module.

[0016] For the module according to the present invention, it further includes a reverse power detection module connected to the basic power module for detecting the reverse power of the basic power module.

[0017] In a second aspect, the present invention provides a power amplifier, including the high-power broadband pulse power amplifier module as described in the first aspect of the present invention.

[0018] The beneficial effects brought by the present invention are as follows:

[0019] As can be seen from the above solution, the embodiment of the present invention provides a high-power broadband pulse power amplifier transmitting module synthesized by multiple basic power modules. Through the combination and synthesis of multiple basic power modules, higher power output can be achieved. The module has a small volume, can withstand high-power operation, and is suitable for various harsh working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram showing the structure of a high-power broadband pulse power amplifier transmitting module according to an embodiment of the present invention Figure 1 ;

[0021] Figure 2 Schematic diagram showing the principle of the basic power module according to an embodiment of the present invention;

[0022] Figure 3 It represents the simulation model of the eight-way waveguide synthesizer according to the embodiment of the present invention;

[0023] Figure 4 It represents the structural schematic diagram of the high-power broadband pulse power amplifier transmitting module according to the embodiment of the present invention Figure 2 ;

[0024] Figure 5 It represents the simulation model of the high-power broadband pulse power amplifier transmitting module according to the embodiment of the present invention;

[0025] Figure 6 It represents the schematic diagram of the image power combining circuit of the high-power broadband pulse power amplifier transmitting module according to the embodiment of the present invention. Detailed implementation manners

[0026] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] See Figure 1 , Figure 2 and Figure 5 As shown, the embodiment of the present invention provides a high-power broadband pulse power amplifier transmitting module 1, including: a power divider 10, a plurality of basic power modules 20 and a synthesizer 30;

[0028] The input power signal is divided into multiple paths of power sub-signals by the power divider 10, and then each path of the power sub-signal is amplified by the corresponding basic power module 20 to obtain an amplified power signal, and the multiple paths of amplified power signals are combined by the synthesizer 30 to output a power signal;

[0029] Wherein, the basic power module 20 includes: a power amplification chip 201 and a timing protection circuit 202 connected to the power amplification chip 201, and the timing protection circuit 202 is used for timing control and protection of the power amplifier.

[0030] It should be noted that in this embodiment, the basic power module is mainly composed of a power amplification chip and a timing protection circuit, and the binary waveguide hybrid power combining (microstrip probe + waveguide) method is adopted to realize the 4-way power amplification function.

[0031] The high-power broadband pulse power amplifier transmitting module according to the embodiment of the present invention realizes power combination from the basic power module to the high-power module by adopting the ridge waveguide power combination technology, improves the coverage frequency band, gain and output power of the transmitting module, and significantly reduces the volume of the basic module at the same time; adopts an advanced timing protection circuit design to ensure the safety and accuracy of the module.

[0032] Optionally, in the high-power broadband pulse power amplifier transmitting module 1 according to the embodiment of the present invention, the operating frequency range of the power amplifier chip 201 is 8 GHz to 18 GHz.

[0033] Specifically, in this embodiment, a domestic power amplifier chip can be selected as the power amplifier chip, and its operating frequency range is 8 to 18 GHz.

[0034] Optionally, referring to Figure 2 and Figure 3 As shown, in the high-power broadband pulse power amplifier transmitting module 1 according to the embodiment of the present invention, the synthesizer adopts an eight-way waveguide synthesizer with a T-byte synthesis method, and the working principle of the eight-way waveguide synthesizer is as follows: two four-way single-ridge waveguide synthesizers are first synthesized, and then a two-way waveguide synthesizer that converts a single-ridge waveguide input to a double-ridge waveguide output is used for synthesis to form an eight-way waveguide synthesizer.

[0035] It should be noted that in this embodiment, the power divider also correspondingly adopts an eight-way waveguide power divider. The output interface of the eight-way waveguide synthesizer in this embodiment is a WRD500 waveguide, and this waveguide has low port standing wave and insertion loss in the range of 8 GHz to 18 GHz.

[0036] Optionally, referring to Figure 6 As shown, in the high-power broadband pulse power amplifier transmitting module 1 according to the embodiment of the present invention, the synthesizer is a mirror synthesizer, and the power divider is a mirror synthesizer. The mirror power division and synthesis network composed of the mirror synthesizer and the mirror synthesizer is used to suppress the second harmonic of the power signal.

[0037] It should be noted that since the second harmonic has a great influence on the output power and efficiency of the module, therefore, in this embodiment, a mirror power division and synthesis network is adopted to realize the suppression of the second harmonic. Compared with the traditional synthesis method, the suppression ratio of the second harmonic is improved very significantly.

[0038] Optionally, referring to Figure 4 As shown, the high-power broadband pulse power amplifier transmitting module 1 according to the embodiment of the present invention further includes a voltage detection module 40 connected to the basic power module 20, which is used to detect the operating voltage of the basic power module 20.

[0039] Optionally, referring to Figure 4As shown, the high-power broadband pulsed power amplifier transmitting module 1 of the embodiment of the present invention further includes a current detection module 50 connected to the basic power module 20 for detecting the operating current of the basic power module 20.

[0040] Optionally, referring to Figure 4 As shown, the high-power broadband pulsed power amplifier transmitting module 1 of the embodiment of the present invention further includes a temperature detection module 60 connected to the basic power module 20 for detecting the temperature of the basic power module 20.

[0041] Optionally, referring to Figure 4 As shown, the high-power broadband pulsed power amplifier transmitting module 1 of the embodiment of the present invention further includes an output power detection module 70 connected to the basic power module 20 for detecting the output power of the basic power module 20.

[0042] Optionally, referring to Figure 4 As shown, the high-power broadband pulsed power amplifier transmitting module 1 of the embodiment of the present invention further includes a reverse power detection module 80 connected to the basic power module 20 for detecting the reverse power of the basic power module 20.

[0043] It should be noted that in this embodiment, the voltage detection module, current detection module, temperature detection module, output power detection module, and reverse power detection module all adopt conventional circuit design schemes, which will not be elaborated in detail here.

[0044] In this embodiment, the high-power broadband pulsed power amplifier transmitting module is also provided with functions such as voltage detection, current detection, module temperature detection, output power detection, and reverse power detection to realize the status monitoring of the module and ensure its normal and stable operation.

[0045] The high-power broadband pulse power amplifier transmitting module of the embodiment of the present invention is mainly synthesized by a plurality of basic power modules through a waveguide synthesizer. The frequency band covers 8 GHz - 18 GHz, and it has the characteristics of high bandwidth, high gain, high output power, and high harmonic suppression ratio. Higher power output can be achieved through the combination and synthesis of multiple such modules. At the same time, this module is equipped with functions such as voltage detection, current detection, module temperature detection, output power detection, and reverse power detection to realize the status monitoring of the module and ensure its normal and stable operation. The module has a small volume and high structural strength, can withstand high-power operation, and is suitable for various harsh working environments. The enhanced protection mechanism reduces the risk of equipment damage and improves the safety of testing. This module can meet the spatial radiation requirements of high-power pulse waves in specific test environments, improve the system testing ability, can perfect the defects of the electromagnetic environment effect test platform in the high-power transmitting module, improve the verification accuracy of the design effectiveness of electronic information equipment, improve the test effect of large equipment system-level high-peak field strength pulse wave form interference, and contribute to the further improvement of the design level of the anti-electromagnetic interference ability of electronic information equipment.

[0046] In summary, the high-power broadband pulse power amplifier transmitting module of the embodiment of the present invention has the characteristics of wide coverage frequency band, high gain, large output power, small volume, etc., can meet the spatial radiation requirements of high-power pulse waves in specific test environments, and improve the system testing ability.

[0047] In the second aspect, the present invention provides a power amplifier, including the high-power broadband pulse power amplifier module 1 as described in the first aspect of the embodiment of the present invention.

[0048] The above is the preferred implementation manner of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A high-power broadband pulse power amplifier transmitting module, characterized in that: include: Power dividers, multiple basic power modules, and combiners; The input power signal is divided into multiple power sub-signals by the power divider, and then each power sub-signal is amplified by the corresponding basic power module to obtain an amplified power signal, and the multiple amplified power signals are synthesized by the synthesizer to output a power signal; The basic power module includes: a power amplifier chip and a timing protection circuit connected to the power amplifier chip, and the timing protection circuit is used to perform timing control and protection on the power amplifier.

2. The high-power broadband pulse power amplifier transmitting module according to claim 1, characterized in that: The operating frequency range of the power amplifier chip is 8 GHz to 18 GHz.

3. The high-power broadband pulse power amplifier transmitting module according to claim 1, characterized in that: The synthesizer adopts an eight-way waveguide synthesizer with a T-byte synthesis method. The working principle of the eight-way waveguide synthesizer is: two 4-way single-ridge waveguide synthesizers first perform the first synthesis, and then a 2-way waveguide synthesizer with a single-ridge waveguide input and a double-ridge waveguide output performs synthesis to form an 8-way waveguide synthesizer.

4. The high-power broadband pulse power amplifier transmitting module according to claim 1, characterized in that: The synthesizer is a mirror image synthesizer, and the power divider is a mirror image synthesizer. The second harmonic of the power signal is suppressed by the mirror image synthesizer and the mirror image power division synthesis network composed of the mirror image synthesizer.

5. The high-power broadband pulse power amplifier transmitting module according to any one of claims 1 to 4, characterized in that: It also includes a voltage detection device connected to the basic power module, which is used to detect the operating voltage of the basic power module.

6. The high-power broadband pulse power amplifier transmitting module according to claim 5, characterized in that: It also includes a current detection device connected to the basic power module, which is used to detect the operating current of the basic power module.

7. The high-power broadband pulse power amplifier transmitting module according to claim 6, characterized in that: It also includes a temperature detection module connected to the basic power module, and is used to detect the temperature of the basic power module.

8. The high-power broadband pulse power amplifier transmitting module according to claim 7, characterized in that: It also includes an output power detection module connected to the basic power module, which is used to detect the output power of the basic power module.

9. The high-power broadband pulse power amplifier transmitting module according to claim 8, characterized in that: It also includes a reverse power detection module connected to the basic power module, which is used to detect the reverse power of the basic power module.

10. A power amplifier, characterized in that: It comprises a high-power broadband pulse power amplifier module as described in any one of claims 1 to 9.

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