Phase compensation circuit and phase compensation method for ultra-wideband multi-path frequency conversion link

A phase compensation and frequency conversion link technology, applied in the field of phase compensation circuits and phase compensation, can solve the problems of time-consuming and laborious, heavy workload, and significant impact on the performance of broadband radar receivers, achieving high compensation accuracy, small spurious amplitude modulation, and economical The effect of saving time and labor
CN114509727APending Publication Date: 2022-05-17NO 55 INST CHINA ELECTRONIC SCI & TECHNOLOGYGROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NO 55 INST CHINA ELECTRONIC SCI & TECHNOLOGYGROUP CO LTD
Publication Date
2022-05-17

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Abstract

The invention discloses a phase compensation circuit of an ultra wide band multi-path frequency conversion link, which comprises a temperature sensor, a memory, a logic controller, a digital phase shifter and a driver, and is characterized in that the temperature sensor and the memory are connected with the logic controller; the logic controller controls the driver through the control code; and the driver is connected with a digital phase shifter arranged in the local oscillator circuit. According to the phase compensation method, a logic controller is adopted as a core, temperature information of a temperature sensor is read and combined with frequency code information provided by a system, control code data programmed in advance in a memory are read, and a digital phase shifter located in a local oscillator link is controlled to adjust phase consistency of a broadband frequency conversion link. According to the invention, the digital phase shifter is adopted for compensation in a local oscillator link, the compensation precision is high, and parasitic amplitude modulation generated during phase shifting is small; frequency codes and temperature information are combined to carry out digital phase shift compensation, and phase compensation under ultra-wideband and full-characteristic temperature conditions is realized.
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Description

technical field

[0001] The invention relates to a phase compensation circuit and a phase compensation method of a frequency conversion link, in particular to a phase compensation circuit and a phase compensation method of an ultra-wideband, multi-channel frequency conversion link. Background technique

[0002] According to the principle of radar, the operating bandwidth of the radar is directly related to its distance resolution. The wider the operating bandwidth, the higher the distance resolution of the radar. The penetrating power is reflected in its frequency range from low frequency to millimeter wave band or even higher. Different The frequency is suitable for various transmission environments, and the penetrating power is extremely strong. In recent years, with the rapid development of electronic countermeasures technology, anti-radiation radar has been developing in the direction of wider frequency range and large instantaneous broadband.

[0003] The application fi...

Claims

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