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Hyperbolic frequency selection surface spectroscope

A frequency selective surface and beam splitter technology, applied in electrical components, antennas, etc., to overcome the detection accuracy, achieve passive acceptance, and improve the target detection probability.

Inactive Publication Date: 2014-04-02
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] With the complex and changeable modern electromagnetic environment, the detection method of a single frequency band is no longer able to meet the needs of the environment due to the influence of its own defects. Therefore, it is imperative to develop a multi-mode composite detection device.

Method used

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  • Hyperbolic frequency selection surface spectroscope
  • Hyperbolic frequency selection surface spectroscope
  • Hyperbolic frequency selection surface spectroscope

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Embodiment Construction

[0027] See attached figure 1 , 2 , a hyperbolic frequency selective surface beam splitter, which includes: a dielectric substrate 1 and a metal patch 2 arranged on the upper surface of the dielectric substrate 1, the dielectric substrate 1 is made of a light-transmitting material, so that it can transmit the infrared frequency band, and the dielectric constant is 3.78 , the shape is a hyperboloid of revolution, and its hyperbolic equation is:

[0028] x 2 4.26 2 - y 2 8.55 2 = 1

[0029] Among them, x and y are point coordinates on the hyperbola, the thickness of the hyperboloid is uniform, and the diameter is 24mm;

[0030] See attached Figure 4 , the metal patch 2 is a cross-shaped structure. Due to the symmetry of the structure itself, the incident...

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Abstract

The invention belongs to the technical field of antenna reflection and particularly relates to a frequency selection spectroscope. A hyperbolic frequency selection surface spectroscope comprises a medium substrate (1) and metal patches (2) arranged on the upper surface of the medium substrate (1) and is characterized in that the medium substrate (1) is made from a light-transmitting material, has the dielectric constant of 3.78 and is shaped like a hyperboloid of revolution; the metal patches (2) adopt crossed structures, are arranged in positions where the metal patches(2) are parallel to a tangent plane at the central point of the medium substrate (1), and are projected downwards to obtain the positions and shapes of the metal patches (2) on the medium substrate (1). The auxiliary reflecting surface of the hyperbolic frequency selection surface spectroscope is used for a millimeter-wave / infrared composite Cassegrain antenna, and can ensure favorable millimeter-wave band radiation characteristics and passive acceptance of infrared frequency bands at the same time so as to achieve the effect that antennas of two patterns share one antenna aperture to work simultaneously.

Description

technical field [0001] The invention belongs to the technical field of antenna reflection, and in particular relates to a frequency selective beam splitter. Background technique [0002] With the complex and changeable modern electromagnetic environment, the detection method of single frequency band is no longer able to meet the needs of the environment due to the influence of its own defects. Therefore, it is imperative to develop multi-mode composite detection devices. [0003] At present, the main modes of multi-mode composite detection are millimeter wave / infrared, millimeter wave / laser composite, etc. Antenna technology is one of the key technologies to realize composite detection, and common-aperture technology is a mechanical structure in which antennas of different working modes or different working frequency bands share one caliber, which reduces the complexity of the system to a certain extent and reduces the The occupied volume of the antenna in the system is red...

Claims

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Application Information

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IPC IPC(8): H01Q15/16H01Q19/19
Inventor 韩敏孙厚军何芒叶喜红韩超
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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