Application of molybdenum disulfide for preparing odd harmonic microwave frequency multiplier

Abstract

The invention discloses an application of molybdenum disulfide for preparing odd harmonic microwave frequency multiplier. The odd harmonic microwave frequency multiplier comprises a cavity, an input coaxial joint and an output coaxial joint respectively arranged at two ends of the cavity, and a cover plate matched with the cavity; a molybdenum disulfide frequency multiplier high-frequency substrate is arranged in the cavity; the molybdenum disulfide frequency multiplier high-frequency substrate comprises a high-frequency substrate, micro-strip lines arranged on the high-frequency substrate andrespectively connected with the input coaxial joint and the output coaxial joint; the gap is formed between the micro-strip lines, and the molybdenum disulfide is arranged in the gap. By utilizing the good nonlinear microwave feature of the molybdenum disulfide, the molybdenum disulfide is suitable for the frequency multiplier and like nonlinear devices; by adopting the frequency multiplier madeof molybdenum disulfide, the nonlinear performance is good, an echo signal cannot be produced, the circuit design is simple, and the frequency multiplication is good, and thrice frequency multiplication loss is equivalent to the fundamental wave.

Description

technical field [0001] The invention relates to the field of microwaves, in particular to the application of molybdenum disulfide in the preparation of odd harmonic microwave frequency doublers. Background technique [0002] Microwave and millimeter wave frequency sources are widely used in systems such as radar, communication, guidance, and test instruments. The frequency multiplier is one of the important components of the frequency source. In the microwave and millimeter wave frequency bands, two-port passive frequency multipliers are widely used in the design of frequency multiplication sources. In terms of stability and noise, the performance of high-frequency two-port passive frequency multipliers is better than that of active oscillators. . However, in the prior art, non-linear resistance, non-linear reactance frequency multiplication, and graphene frequency multiplication are mainly used. [0003] The frequency doubling efficiency of nonlinear resistors is low, an...

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Problems solved by technology

[0003] The frequency doubling efficiency of nonlinear resistors is low, and the highest efficiency that can be achieved is 1 / N 2, Causes the fundamental wave loss to be much greater than the triple frequency multiplication loss

[0004] Nonlinear reactance is often used for low-order frequency multiplication. In actual circuits, due to poor matching and senior loss of diodes, frequency multiplication losses always exist, resulting in complex design structures.

[0005] In recent years, due to its high electron traction rate and good thermal conductivity, graphene is considered to be the next generation of electronic materials, and has become a hot research direction. The disadvantage of graphene is that it will generate echo signals, so we need to The fundamental wave and the harmonic components to be recovered are in the state of total reflection, and the total reflection is to reflect the fundamental wave and the harmonic components to be recovered back to the input reflection network through graphene, resulting in a complex design of the frequency doubler structure

Therefore, the frequency multiplication loss of the graphene frequency multiplier is relatively high, and the work efficiency is not high, which greatly limits the usage scenarios of the graphene frequency multiplier

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