Terahertz frequency tripler based on MIM capacitor and plurality of pairs of Schottky diode structures

Abstract

The invention relates to a terahertz frequency tripler based on an MIM capacitor and multiple pairs of Schottky diode structures. The terahertz frequency tripler is composed of a waveguide-to-suspension line probe, an input low-pass filter, a nonlinear diode pair balance structure, the MIM capacitor, an inductance coil, a suspension line-to-waveguide probe, a T-shaped cavity and the like. The waveguide-to-suspension line probe is used for waveguide conversion connection between an input end signal source and an output end output, the signal source is filtered by a low-pass filter, and the output signal source is coupled to the center of the balance structure through a Schottky diode to generate a nonlinear wave with triple harmonic waves; and the Schottky diode pairs adopt a multi-pair anti-parallel structure, so that even harmonics are suppressed, and the power-resistant high-voltage performance is improved. The bias voltage VDD end of the diode is added with MIM capacitor grounding and inductance, AC signals are shunted, and bias voltage interference is reduced. The cavity for placing the frequency multiplier adopts a T-shaped structure, so that the use of cantilever beams is reduced, and the noise interference is reduced. The frequency tripler structure has the advantages of being good in stability, high in frequency doubling efficiency, low in noise and the like.

Description

technical field [0001] The invention relates to the technical field of terahertz frequency triplers, in particular to a terahertz frequency tripler based on MIM capacitors and multiple pairs of Schottky diode structures. Background technique [0002] Terahertz wave (0.1~10THz) is a transitional region between macroelectronics and microphotonics, between the mature microwave electronics theory and optical theory, and plays an important role in the fields of national defense, military, biomedicine, astronomy and meteorology, wireless communication, etc. Academic and applied value. One of the main directions for the development of terahertz technology is the generation of terahertz waves. At present, terahertz sources with room temperature operation, small size, long life, high efficiency, and continuous wave output have always been an important goal of terahertz technology development. In Hertz applications, terahertz monolithic integrated circuits are implemented in the form...

AI Technical Summary

Problems solved by technology

At present, foreign semiconductor solid-state source circuit structures emerge in endlessly, and circuit indicators continue to improve. However, according to the research status of domestic terahertz solid-state source field, there is still a certain gap in terahertz technology.

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