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Narrow pulse width high-frequency modulator

A high-frequency modulation and narrow pulse width technology, applied in the field of radar, can solve the problems of false triggering, modulator easy to fire pulse, low reliability, etc. Effect

Active Publication Date: 2017-11-24
WUXI JINGLEI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this circuit structure, the modulator is extremely easy to fire pulses and cause false triggering, and the reliability is low

Method used

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  • Narrow pulse width high-frequency modulator

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Embodiment Construction

[0019] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0020] Please refer to figure 1 , which shows the structural diagram of the narrow pulse width high frequency modulator disclosed in the present application, the narrow pulse width high frequency modulator includes a signal input terminal Sin, a signal output terminal Sout, a transformer T, a first amplification module, a filter module, The second amplifying module, the first discharging module, the third amplifying module, the inverter module, the differential module, the fourth amplifying module, the second discharging module and the switching module, the transformer T includes a primary coil and two secondary coils, two The secondary coils usually have the same number of turns. The signal input terminal Sin is used to receive the TTL pulse signal to be modulated, and the signal output terminal Sout is used to output the modulated transmi...

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Abstract

The invention discloses a narrow pulse width high-frequency modulator, and relates to the technical field of radars. The narrow pulse width high-frequency modulator comprises a primary coil of which the signal input end is connected with a transformer; a first secondary coil of the transformer is connected with a first amplifier module, a filter module, a second amplifier module, a first discharge module and a first input end of a switch module in sequence; a second secondary coil of the transformer is connected with a third amplifier module, an inverter module, a differential module, a fourth amplifier module, a second discharge module and a second input end of the switch module in sequence; and the output end of the switch module is connected with a signal output end. The switch of the narrow pulse width high-frequency modulator is turned on via synchronous pulse signals of TTL pulse signals, and is turned off via trailing-edge pulse taken out, so that the modulator is not easily disturbed by sparking pulse, is not easily mistakenly triggered and is strong in anti-interference capacity and high in reliability.

Description

technical field [0001] The invention relates to the technical field of radar, in particular to a high-frequency modulator with narrow pulse width. Background technique [0002] As an important part of the radar transmitter, the modulator has developed a variety of working modes, among which the narrow pulse width high frequency modulator is a new function requirement of the radar. [0003] The current narrow pulse width high-frequency modulator usually takes out the leading edge pulse and trailing edge pulse of the TTL pulse signal to be modulated, and makes the leading edge pulse and trailing edge pulse pass through the bistable trigger circuit to obtain the modulated transmission signal. In this circuit structure, the modulator is very easy to fire pulses and cause false triggering, and the reliability is low. Contents of the invention [0004] In view of the above problems and technical requirements, the present inventor proposes a narrow pulse width high frequency mod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/282
CPCG01S7/282
Inventor 杨晗
Owner WUXI JINGLEI ELECTRONICS
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