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Method and circuit for expanding working frequency of floating plate modulator

A technology of working frequency and modulator, which is applied in the field of expanding the working frequency of floating plate modulators to achieve the effects of reducing power consumption and heat generation, improving anti-interference ability, and avoiding saturation

Pending Publication Date: 2021-01-01
LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of this application is to provide a method and circuit for expanding the operating frequency of a floating plate modulator to solve or alleviate at least one of the problems in the background technology

Method used

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  • Method and circuit for expanding working frequency of floating plate modulator
  • Method and circuit for expanding working frequency of floating plate modulator
  • Method and circuit for expanding working frequency of floating plate modulator

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Embodiment Construction

[0054] In order to make the purpose, technical solution and advantages of the application more clear, the technical solution in the embodiment of the application will be described in more detail below in conjunction with the drawings in the embodiment of the application.

[0055] The method for expanding the range of the floating plate modulator provided by the present application includes the following steps:

[0056] S1, respectively triggering the radar periodic repetition frequency signal to obtain the leading edge pulse signal string and the trailing edge pulse signal string;

[0057] S2. The leading edge pulse signal train is transmitted to the secondary side of the first pulse transformer after being isolated by the first drive enhancement circuit and the first pulse transformer to obtain the first drive signal used to drive the modulation tube and the first drive signal used to drive the truncated tube shaping One way shaping signal; the trailing edge pulse signal trai...

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Abstract

The invention provides a method for expanding the working frequency of a floating plate modulator. The method comprises the following steps: respectively triggering radar PRF signals to obtain a leading edge pulse signal string and a trailing edge pulse signal string; transmitting the leading edge pulse signal string to the secondary side of the first pulse transformer to obtain a first path of driving signal for participating in driving the modulator tube and a first path of shaping signal for participating in driving the truncation tube to shape; transmitting the trailing edge pulse signal string to the secondary side of a second pulse transformer to obtain a second path of driving signal used for participating in driving the truncation tube and a second path of shaping signal used for participating in driving the modulation tube to shape; the first path of driving signal and the second path of shaping signal are subjected to signal shaping to obtain a modulation tube driving signalwith the same phase as the periodic repetition frequency signal, the second path of driving signal and the first path of shaping signal are subjected to signal shaping to obtain a truncation tube driving signal complementary with the modulation tube driving signal, and finally a gate pulse voltage output waveform is obtained.

Description

technical field [0001] The application belongs to the technical field of radar transmitters, and in particular relates to a method and a circuit for enlarging the working frequency of a floating plate modulator. Background technique [0002] The floating board modulator is an important part of the radar transmitter, and its index parameters are directly related to the overall performance of the transmitter. According to the PRF (Pulse Repetition Frequency) signal sent by the radar machine, the floating plate modulator outputs positive and negative pulses with a certain amplitude, width and frequency to control the work of the traveling wave tube. When a positive pulse is output, the grid of the traveling wave tube is turned on. When a negative pulse is output, the grid of the traveling wave tube is cut off. [0003] The existing floating plate modulator circuit generally mainly includes: a pulse generating circuit, a pulse transmission transformer and a pulse restoring cir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K7/06H03L7/089H03L7/093H03L7/099
CPCH03K7/06H03L7/0891H03L7/093H03L7/099
Inventor 张可银吴黎明杨世航
Owner LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA