220ghz-325ghz plus bias broadband high-efficiency frequency doubler

Abstract

The present invention proposes a 220GHz-325GHz bias broadband high-efficiency double frequency multiplier, and uses a DC bias low-pass filter and a broadband double-circle filter to form a duplexer for the output and input of the DC bias and frequency multiplier, and the broadband dual-circle The ring filter is matched with the waveguide probe filter at the same time. The fundamental wave input adopts the ridge waveguide to realize the balanced structure of the input fundamental wave, and cooperates with the parasitic parameters of the diode to complete the matching of the input fundamental wave. At the same time, a single-sided gold-plated waveguide is added to the input ridge waveguide A dielectric plate, the non-gold-plated side of the dielectric plate is directly in contact with the ridge waveguide. The present invention not only can realize the full waveguide bandwidth of 220GHz-325GHz, but also has higher efficiency, breaks through the problem that the bandwidth and efficiency of the existing medium-based frequency doubling circuit cannot be balanced, and solves the problem of doubling the bandwidth of the all-metal structure at 220GHz-325GHz It is difficult to add a DC bias circuit to the frequency circuit, and the circuit structure is complex and difficult to implement.

Description

technical field [0001] The invention relates to the technical field of testing, in particular to a 220GHz-325GHz broadband high-efficiency frequency doubler with bias added. Background technique [0002] The generation of 220GHz-325GHz broadband solid-state high-power signals has always been a key problem to be solved by 220GHz-325GHz signal sources, vector network analyzers, antenna / RCS test systems and other test equipment. It is closely related to the driving power. Increasing the compression point of the frequency multiplier, increasing the driving power of the frequency multiplier, and improving the efficiency of the frequency multiplier are all effective ways to increase the output power of the frequency multiplier. [0003] Since the 220GHz-325GHz frequency multiplier is difficult to generate broadband millimeter-wave high-power drive no matter whether it is three or two times, improving the efficiency of the 220GHz-325GHz frequency multiplier is the most effective so...

AI Technical Summary

Problems solved by technology

[0008] The present invention proposes 220GHz-325GHz plus offset broadband high-efficiency frequency doubling, not only can realize 220GHz-325GHz full waveguide bandwidth, but also has higher efficiency, breaking through the existing medium-based frequency doubling circuit bandwidth and efficiency can not be balanced At the same time, it solves the problems that the all-metal structure 220GHz-325GHz double frequency circuit cannot add a DC bias circuit, and the circuit structure is complex and difficult to implement.

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