Terahertz waveguide biased harmonic mixer

A harmonic mixer and terahertz technology, applied in multi-frequency modulation conversion, electrical components, demodulation, etc., can solve the difficulty of increasing the mixer test, high local oscillator power, and difficult mixer test and other problems, to achieve the effect of low frequency conversion loss, convenient use and convenient test

Active Publication Date: 2019-10-25
江苏心磁超导体有限公司
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  • Claims
  • Application Information

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Problems solved by technology

It is difficult to test the mixer working in this frequency band at the same time. For example, taking the subharmonic mixer as an example, if an unbiased anti-parallel mixing Schottky diode pair is used, sufficient local oscillator power is required to turn on Schottky diodes make the diodes work in a resistive state, and generally require 5 to 10mW of power to turn on the diodes, which have higher requirements for local oscillator power, which increases the difficulty of mixer testing

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  • Terahertz waveguide biased harmonic mixer

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Embodiment Construction

[0015] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0016] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

[0017] Such as figure ...

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Abstract

The invention discloses a terahertz waveguide biased harmonic mixer, and relates to the technical field of mixers. The mixer comprises a radio frequency waveguide, a local oscillator waveguide and a quartz circuit. Two discrete Schottky diodes are placed at one end of a quartz substrate of the quartz circuit, anodes and anodes of the two Schottky diodes are connected, and cathodes of the two Schottky diodes are grounded through conductive adhesive and stretch across the inclined radio frequency waveguide. The local oscillator waveguide comprises a linear local oscillator waveguide and an inclined local oscillator waveguide. The end part of the inner side of the inclined local oscillator waveguide extends to a quartz substrate of the quartz circuit and stretches across the quartz substrateof the quartz circuit through a quartz E-surface probe, and one end of the quartz E-surface probe is connected with the anode of the Schottky diode through a matched microstrip line. The mixer has theadvantages of being simple in structure, capable of being completely opened under small local oscillation power, convenient to use and the like.

Description

technical field [0001] The invention relates to the technical field of mixers, in particular to a terahertz waveguide biasable harmonic mixer. Background technique [0002] Terahertz (THz) waves refer to electromagnetic waves with a frequency in the range of 0.3-3THz. The generalized terahertz wave frequency refers to 100GHz to 10THz, where 1THz=1000GHz. Terahertz waves have broad application prospects in high-speed wireless communication, radar, human body safety detection and other fields. Various applications of terahertz are inseparable from terahertz receiving modules. Currently commonly used terahertz receivers are mainly based on mixers, which are divided into fundamental mixers and harmonic mixers. Among them, in the terahertz frequency band, harmonic mixers can mainly reduce the requirements for local oscillators. . The harmonic mixer can make the local oscillator frequency one-half, one-third, one-fourth, or even lower frequency as the local oscillator of the har...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03D7/16
CPCH03D7/161
Inventor 胡海涛
Owner 江苏心磁超导体有限公司
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