Compact type low-temperature second harmonic mixer base

Abstract

A compact type low-temperature second harmonic mixer base comprises a heat conduction support and a base body, the base body comprises a signal input waveguiding structure, a reference signal input waveguiding structure, a frequency mixing chip slot, a high-frequency switching cavity and an output signal port, wherein the L-shaped heat conduction support comprises a horizontal contact surface, a vertical contact surface and a hollowed-out structure on the vertical contact surface, the base body is fixed together with the heat conduction support, the signal input waveguiding structure is internally provided with a to-be-measured signal input port, a to-be-measured signal input waveguide, a reference signal input waveguide transition segment and a to-be-measured signal input half-height waveguide, the reference signal input waveguiding structure is also internally provided with a reference signal input port, a reference signal input waveguide, a reference signal input waveguide transition segment and a reference signal input half-height waveguide which are matched with the same, and the signal input waveguiding structure, the reference signal input waveguiding structure and the high-frequency switching cavity are communicated together by the frequency mixing chip slot. The compact type low-temperature second harmonic mixer base is capable of achieving non-sparse acquisition for a millimeter-wave frequency-band mixer in a low-temperature environment.

Description

Technical field [0001] The invention belongs to a radio frequency microwave waveguide component, in particular to a compact second harmonic mixer base. Background technique [0002] Terahertz technology is a key technology in remote sensing. At the same time, it also has potential applications in human security, atmospheric environment, and resource remote sensing. It also has potential applications. The Schottky diode mixer is the most widely used detector in this frequency band. Therefore, it is widely used in millimeter wave and terahertz receiving systems as frequency converters or detectors. There are three main types of mixer circuits currently used: double sideband mixers, single sideband mixers, and sideband separated mixers. According to the frequency relationship between the reference signal and the RF signal to be tested, the main forms of the mixer circuit are: fundamental mixer, second harmonic mixer and higher harmonic mixer. The fundamental wave mixer uses the f...

AI Technical Summary

Problems solved by technology

[0003] The technical problem of the present invention is: to overcome the deficiencies of the prior art, to provide a compact second harmonic mixer base, to adjust the structure of the reference signal, the signal input and the output signal port to solve the waveguide type two The base of the subharmonic mixer is too large to facilitate the installation of the array

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