Radio frequency pulse signal source generation circuit

Abstract

The invention relates to the technical field of radio frequency pulse signal source generation circuits, in particular to a radio frequency pulse signal source generation circuit, which comprises a frequency source module, a radio frequency switch module, a voltage-controlled gain adjustable module, a numerical control attenuation module and a main control module, the voltage-controlled gain adjustable module is electrically connected with the radio frequency switch module and the numerical control attenuation module, the frequency source module communicates with the main control module to obtain a corresponding frequency setting code, and the frequency source module sets a register corresponding to the frequency source module according to data obtained from the main control module; the radio frequency switch module and the voltage-controlled gain adjustable module are arranged to realize pulse modulation of signals, the signals modulated by the radio frequency switch module are continuously sent to the voltage-controlled gain adjustable module, and finally the modulated radio frequency signals are sent to the numerical control attenuation module, so that the purpose of controllable power sent to a receiver is realized. And thus, high suppression degree on continuous waves is realized.

Description

technical field [0001] The invention relates to the technical field of a radio frequency pulse signal source generating circuit, in particular to a radio frequency pulse signal source generating circuit. Background technique [0002] In the prior art, pulse modulation is performed by using a variable gain amplifier controlled by a three-stage negative pressure. In this way, the pulse needs to be modulated in reverse phase first, which not only has a complicated circuit, but also has insufficient modulation depth. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to provide a radio frequency pulse signal source generating circuit to achieve a high degree of suppression of continuous waves. [0004] In order to solve the above-mentioned technical problems, the technical scheme adopted in the present invention is: [0005] A radio frequency pulse signal source generating circuit includes a frequency source module, a radio freque...

AI Technical Summary

Problems solved by technology

[0002] Existing pulse modulation is performed by using a variable gain amplifier controlled by three stages of negative pressure, so that the pulse needs to be inverted and modulated first, which is not only complicated in circuit, but also insufficient in modulation depth

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