Novel heterodyne detector based on substrate integrated waveguide antenna

A substrate-integrated waveguide and detector technology, applied in the field of terahertz wave detection, can solve the problems of poor noise-equivalent power performance, high power consumption, and difficulty in receiving signals, achieving significant production practical significance, reducing noise, etc. Effective power, increase the effect of output responsivity
CN109540285AInactive Publication Date: 2019-03-29TIANJIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN UNIV
Publication Date
2019-03-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a novel heterodyne detector based on a substrate integrated waveguide antenna. The detector comprises the substrate integrated waveguide antenna and a three-push oscillator. The substrate integrated waveguide antenna is connected with the three-push oscillator. The substrate integrated waveguide antenna is used for receiving a terahertz wave signal in an external space andthen transmitting the signal to the three-push oscillator. The three-push oscillator can be used as a local oscillator signal source and a mixer, and is used for generating a local oscillator signal,receiving the terahertz wave signal from the substrate integrated waveguide antenna, and then mixing the local oscillator signal with the terahertz wave signal to generate an intermediate frequency signal to be detected. According to the novel heterodyne detector based on the substrate integrated waveguide antenna, which is provided by the invention, the structure is relatively simple, scientificand reasonable; the output response of the detector can be increased; the noise equivalent power is reduced; the requirement of terahertz wave detection is fully satisfied; and the detector has a great production practice significance.
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Description

technical field

[0001] The invention relates to the technical field of terahertz wave detection, in particular to a novel heterodyne detector based on a substrate integrated waveguide antenna. Background technique

[0002] Terahertz ray is a kind of electromagnetic wave, or terahertz wave, between microwave and infrared, also called T-ray (T-Ray), its frequency range is generally 0.1THz-10THz. In the field of optics, it is called far-infrared radiation, and in the field of radio physics, it is called submillimeter wave according to its wavelength smaller than the millimeter level.

[0003] For a long time, for terahertz rays, due to the lack of high-emissivity terahertz signal sources and high-performance detectors, terahertz rays in this band have been in a state to be studied, and have not been deeply explored and explored. application, and is called the "terahertz gap".

[0004] At present, terahertz waves and their applications have become a hot field in the scientific...

Claims

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