Miniature high-gain directional broadband antenna for microwave detecting system

A broadband antenna and microwave detection technology, applied in radio wave measurement systems, antennas, re-radiation of sound waves, etc.

Inactive Publication Date: 2017-06-30
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the traditional antenna has the defects of directivity and large size, which cannot be well applied to the microwave detection system

Method used

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  • Miniature high-gain directional broadband antenna for microwave detecting system
  • Miniature high-gain directional broadband antenna for microwave detecting system
  • Miniature high-gain directional broadband antenna for microwave detecting system

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Embodiment Construction

[0023] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0024] Embodiments of the present invention relate to a small high-gain directional broadband antenna for microwave detection systems, such as figure 1 As shown, it includes a multi-layer structure antenna. The multi-layer structure antenna has three layers, and there are gaps between each layer. Among them, the first layer is the guiding layer 1, the second layer is the dielectric layer 2, and the third layer is the reflection...

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Abstract

The invention relates to a miniature high-gain directional broadband antenna for a microwave detecting system. The antenna comprises a multilayer structured antenna. The multilayer structured antenna comprises three layers which are separated by a clearance, wherein a first layer is a directional layer, a second layer is a dielectric layer and a third layer is a reflecting layer. A metal patch is adhered on the front surface of the dielectric layer, and a grounding patch is adhered on the back surface of the dielectric layer. The miniature high-gain directional broadband antenna can effectively determine whether a foreign object exists in a detected object and determines position of the foreign object.

Description

technical field [0001] The invention relates to the technical field of microwave detection, in particular to a small-sized high-gain directional broadband antenna for a microwave detection system. Background technique [0002] Microwave detection refers to a detection method that uses microwave as the carrier of information. The frequency of microwave is 300MHZ-300GHZ, and the corresponding wavelength is between 1mm-1m. Ion-permeable and directional. All these characteristics make microwaves can be used in the field of detection. The principle is to use microwaves to scan the object to be detected, then collect the signal scattered by the object, and reconstruct the shape of the object or the distribution of internal dielectric constant through signal analysis. Because the size of the dielectric constant is related to the water content of the tissue of the object, microwave detection is very suitable for biological detection technology. And compared with traditional detect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/22H01Q1/38H01Q1/50H01Q19/10G01V3/08
CPCH01Q1/50G01V3/08H01Q1/22H01Q1/38H01Q19/10
Inventor 项实吴怡之叶声
Owner DONGHUA UNIV
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