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Shared holographic compact range system of millimeter wave/submillimeter wave multi-band calibers

A sub-millimeter wave, multi-frequency band technology, applied in the direction of electromagnetic field characteristics, can solve the problems of narrow working frequency band and limit the application of holographic compression field, and achieve the effect of saving design and manufacturing costs and improving test efficiency

Active Publication Date: 2012-07-18
BEIHANG UNIV
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AI Technical Summary

Problems solved by technology

The main problem of the current holographic compression field is that the working frequency band is narrow, generally within 10%, which greatly limits the application of the holographic compression field

Method used

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  • Shared holographic compact range system of millimeter wave/submillimeter wave multi-band calibers
  • Shared holographic compact range system of millimeter wave/submillimeter wave multi-band calibers
  • Shared holographic compact range system of millimeter wave/submillimeter wave multi-band calibers

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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Such as figure 1 As shown in , 1 is the holographic compact field feed source, firstly determine the distance d from the transmission surface of the holographic aperture when the feed source works at the center frequency s Can be set to 0.5 times to 3 times the aperture size b of the holographic aperture transmission surface c .

[0024] Let the center frequency be f 1 , when the frequency is n*f 1 When (0.1s location.

[0025] The holographic mouth-facial manufacturing is to put the computer virtual designed stripes into practice. The holographic aperture includes metal stripes and a dielectric substrate. The metal stripes will correct the spherical waves emitted by the feed source, and the dielectric substrate acts as a mechanical support. The requirements of the dielectric substrate are large size, low dielectric constant, low...

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Abstract

The invention relates to a shared holographic compact range system of millimeter wave / submillimeter wave multi-band calibers, wherein the compact range is mainly composed of a multi-band feedback source system and a holographic caliber transmission surface. The parameters of the holographic caliber transmission surface of the compact range are determined by the central frequency of the multi-band. Parameters such as feedback source position, working frequency and illumination angle and the like, are determined by a generalized similarity principle. The frequency range higher than the central frequency of the feedback source is away from the holographic caliber transmission surface, the field angle of the feedback source is small, the feedback source is close to the holographic caliber transmission surface in a frequency band lower than the central frequency, and the field angle of the feedback source is large.

Description

technical field [0001] The present invention relates to millimeter wave\submillimeter wave compact field technology, in particular to a millimeter wave\submillimeter wave multi-band caliber sharing holographic compact field, which is mainly used in indoor millimeter wave\submillimeter wave antenna testing, and can meet multiple millimeter wave \Antenna and target testing needs in the submillimeter wave band. Background technique [0002] With the rapid development of millimeter wave\submillimeter wave technology, the demand for millimeter wave\submillimeter wave antenna testing is becoming increasingly urgent. Traditional near-field and outdoor far-field have insurmountable defects in millimeter wave testing. The compact field technology plays an irreplaceable important role in millimeter wave antenna testing technology. Traditional reflector antennas are limited by machining accuracy, making it difficult to apply to submillimeter frequency bands. In 1997, Jusi Tuovinen o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/08
Inventor 李志平武建华许鼎王正鹏
Owner BEIHANG UNIV
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