Low-cost mmWave high-gain slot antenna array fed by multilayer waveguide

A slot antenna and waveguide feeding technology, which is applied in antenna arrays, slot antennas, antennas, etc., can solve the problems of large size and complex structure, achieve good radiation characteristics, high radiation performance, and reduce processing difficulty and cost.

Active Publication Date: 2022-06-07
BEIJING UNIV OF POSTS & TELECOMM
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  • Description
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Problems solved by technology

The gap waveguide structure reduces the processing cost of the high-frequency waveguide, but it still has the disadvantages of large size and complex structure.

Method used

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  • Low-cost mmWave high-gain slot antenna array fed by multilayer waveguide
  • Low-cost mmWave high-gain slot antenna array fed by multilayer waveguide
  • Low-cost mmWave high-gain slot antenna array fed by multilayer waveguide

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Embodiment

[0065] The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.

[0066] In order to meet the requirements of the current communication system for the millimeter wave frequency band, the present invention shows an embodiment with a frequency near 95 GHz. In this embodiment, the thickness of each layer of metal plates from top to bottom is 0.2mm, 1.3mm, 0.1mm, 0.6mm, 0.1mm, 0.94mm, 0.2mm, 0.2mm, wherein the thickness of the upper and lower parts of the plate 6 is respectively 0.2mm and 0.74mm. The thickness of the gap between the adjacent metal plates in plate 3-plate 8 is 0.01 mm.

[0067] The length L of the radiation slot in plate 1 S 2mm, width W S is 1.6mm. The distance L between adjacent radiat...

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Abstract

The invention discloses a multi-layer waveguide feeding low-cost millimeter wave high-gain slot antenna array, which belongs to the field of antennas and specifically includes a radiation structure, a waveguide structure and a feeding waveguide structure from top to bottom; There are radiation slots, and there is a rectangular cavity with a ridge structure on board 2; in the waveguide structure, there are EBG structures on board 3, board 4 and board 5, and board 3 has a rectangular feeding slot, and board 4 has a connected Rectangular cavity; plate 5 has a rectangular slot connected to the rectangular cavity; plate 6, plate 7 and plate 8 in the feeding waveguide structure all have EBG structures, and the top of plate 6 is facing plate 5. There are rectangular slots of the same size and Connected, there is a rectangular cavity connected to it at the bottom end, each of the plate 7 and plate 8 has a rectangular slot facing and communicating with it, which is used to feed the rectangular cavity at the bottom end of the transition standard waveguide plate 6; then through the rectangular slot, the plate The rectangular slot of 5, the rectangular cavity of board 4, and the rectangular feed slot of board 3 feed the radiation structure. The invention achieves good radiation performance.

Description

technical field [0001] The invention belongs to the field of antennas, in particular to a multilayer waveguide feeding low-cost millimeter-wave high-gain slot antenna array. Background technique [0002] In recent years, with the rapid development of communication technology, the demand for capacity of communication system is getting higher and higher. In the high-frequency microwave frequency band, spectrum resources are extremely abundant, so modern communication systems are developing towards the high-frequency microwave frequency band, especially the millimeter wave frequency band. [0003] In radio waves, millimeter waves refer to electromagnetic waves with a wavelength of 1-10 mm. It is located in the wavelength range where microwaves and far-infrared waves overlap. Therefore, it has the characteristics of both, with extremely wide bandwidth, narrow beam, and reliability. High and good directionality and other advantages. With this series of advantages, millimeter wa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q13/10H01Q9/04H01Q21/00
CPCH01Q13/10H01Q9/0407H01Q21/00Y02D30/70
Inventor 吴永乐余逸凡杨雨豪王卫民陈建宏金城
Owner BEIJING UNIV OF POSTS & TELECOMM
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