Withstanding power THz triple frequency analogous balance type doubling circuit

Abstract

The invention discloses a withstanding power THz (terahertz) triple frequency analogous balance type doubling circuit, relating to the THz circuit technical field, and comprises a radio frequency input waveguide, a quartz substrate and a radio frequency output waveguide; the anode of a multijunction GaAs THz frequency doubling diode which has the cathode connected to a radio frequency matching microstrip line is in connection with a direct current bias end quartz strip line; each direct current bias end quartz strip line is in connection with one end of a capacitor through a gold wire jumper, and the other end of the capacitor is in connection with a same input microstrip line integrated with a low pass filter through the gold wire jumper. The withstanding power THz triple frequency balance type doubling circuit has a simple circuit structure, and can bear larger input power due to the increase of schottky diodes, and realize more stable circuit operation in an analogous balance type frequency doubling mode formed by four multijunction GaAs THz frequency doubling diodes.

Description

technical field [0001] The invention relates to the technical field of terahertz circuits, in particular to a power-resistant terahertz triple frequency-like balanced frequency multiplier circuit. Background technique [0002] In a broad sense, terahertz (THz) waves refer to electromagnetic waves with frequencies in the range of 0.1-10THz, where 1THz=1000GHz, and some people think that THz frequencies refer to electromagnetic waves in the range of 0.3THz-3THz. THz waves occupy a very special position in the electromagnetic spectrum, and THz technology is recognized as a very important cross-frontier field by the international scientific and technological community. [0003] In terahertz communication, measurement and other systems, the source is crucial. At present, the miniaturized and low-cost solid-state terahertz frequency doubling technology is a hot topic in international research. GaAs-based planar Schottky diodes are mainly used as nonlinear frequency doubling devic...

AI Technical Summary

Problems solved by technology

[0005] In the triple frequency doubling circuit that is often used at present, Schottky diodes are generally made into diodes suitable for triple frequency doubling circuits during the production process. Generally, there are only 4 or 6 junctions. Each Schottky diode The effective withstand power of the diode junction is about 20mW, so the further increase of the input power is limited, and the output power cannot continue to increase.

Images