Unidirectional microwave amplitude limiter and communication system
A limiter, microwave technology, applied in the field of radio frequency communication, can solve problems such as inability to meet application requirements
Pending Publication Date: 2022-04-01
THE 13TH RES INST OF CHINA ELECTRONICS TECH GRP CORP
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[0004] In view of this, the embodiment of the present invention provides a one-way microwave limiter and a communication system to solve the problem that microwave limiters in the prior art are usually two-way and cannot meet the needs of practical applications
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[0031] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
[0032] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.
[0033] refer to figure 1 , the first aspect of the embodiment of the present invention provides a one-way microwave limiter, including: a two-way coupler 11, a forward detection module 12, a reverse detection module 13, an integrating module 14, a choke inductor L1, a ...
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The invention is suitable for the technical field of radio frequency communication, and provides a unidirectional microwave amplitude limiter and a communication system, the amplitude limiter comprises a bidirectional coupler, a forward detection module, a reverse detection module, an integration module, a choke inductor and a PIN diode; a first main branch end of the bidirectional coupler is connected with an antenna end, a second main branch end of the bidirectional coupler is respectively connected with a first end of the choke inductor, a positive electrode of the PIN diode and a power transmitting end, a first coupling end of the bidirectional coupler is connected with an input end of the forward detection module, and a second coupling end of the bidirectional coupler is connected with an input end of the reverse detection module; the output end of the forward detection module is connected with the output end of the reverse detection module, the first end of the integration module and the second end of the choke inductor. According to the characteristics of the bidirectional coupler, when a high-power signal is injected into an antenna end, the output of the forward detection module and the output of the reverse detection module jointly act on the positive electrode of the PIN diode through the integration module so that the positive electrode of the PIN diode can be conducted, and one-way protection of the high-power signal is achieved.
Description
technical field [0001] The invention belongs to the technical field of radio frequency communication, and in particular relates to a one-way microwave limiter and a communication system. Background technique [0002] The microwave limiter is a power modulation device. When the power is low, the signal passes through almost without attenuation, but when the input power increases to a certain value, the signal will be greatly attenuated. It is often used for the protection of receivers. protection of the low noise amplifier. [0003] In the prior art, the microwave limiter is usually bidirectional, which cannot be used for unidirectional protection of the transmitter, lacks a unidirectional limiter, and cannot meet practical application requirements. Contents of the invention [0004] In view of this, embodiments of the present invention provide a unidirectional microwave limiter and a communication system to solve the problem that microwave limiters in the prior art are us...
Claims
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Inventor 邓世雄陈书宾袁彪王乔楠蒙燕强王晓龙祁兴群曹欢欢石超王二超韩轩史强高子萌马腾时久然
Owner THE 13TH RES INST OF CHINA ELECTRONICS TECH GRP CORP