A composite left and right handed nonlinear transmission line microwave frequency multiplication circuit and its manufacturing method

Abstract

The invention relates to a left-right hand composite non-linear transmission line microwave frequency multiplier circuit and a manufacturing method thereof, belonging to the technical field of microwave circuits. The left-right hand composite non-linear transmission line microwave frequency multiplier circuit is formed by connecting five sections of left-right hand composite non-linear transmission line units in series; and each section of the left-right hand composite non-linear transmission line unit is respectively composed of two serially-connected same Schottky diodes, a rectangular winding inductor which is connected with the two Schottky diodes in parallel, and two same transmission lines which are symmetrically distributed at two sides of the rectangular winding inductor. The Schottky diodes of the frequency multiplier circuit, which are close to an input end and an output end, also can be replaced by blocking capacitors. The left-right hand composite non-linear transmission line microwave frequency multiplier circuit provided by the invention has the advantages of optimizing a circuit structure, simplifying a peripheral biasing circuit and reducing the volume. The manufacturing method of the frequency multiplier circuit provided by the invention has the advantages of simplifying a corresponding circuit manufacturing process, improving the harmonic output power of the frequency multiplier circuit, increasing the harmonic conversion efficiency and enhancing the harmonic output purity.

Description

technical field [0001] The invention relates to the technical field of microwave circuits in microelectronics, in particular to a composite left-handed nonlinear transmission line microwave frequency multiplication circuit based on planar Schottky diodes and a manufacturing method thereof. Background technique [0002] As the operating frequency of the system extends to the microwave high-end, millimeter wave and terahertz frequency bands, the frequency is required to be higher and higher. Due to the influence of devices, output power and other factors, it is difficult for the fundamental wave to meet the electrical performance indicators of the system in these frequency bands. It is necessary to multiply the frequency of the input fundamental wave signal by an integer multiple to extend the frequency to microwave, millimeter wave high-end and even terahertz waves, which is of great significance to microwave and millimeter wave transmitters and receivers, communications, elec...

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Problems solved by technology

The structural circuit has the following fixed defects: via holes and back gold processes are required; Schottky diodes and inductors are reversed and surface-mounted on high-frequency substrates respectively; bias circuits need to be provided for Schottky diodes; often accompanied by A large number of stray waves are generated, and the harmonics of the generated stray waves also appear in the harmonics, and a pure harmonic signal cannot be obtained; the harmonics are greatly affected by the bias voltage applied to the Schottky diode, and sometimes cannot be obtained Harmonic output

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