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High-isolation dual-band polarized reconfigurable antenna based on SIW technology

A reconfigurable antenna, high isolation technology, applied in the direction of antenna, resonant antenna, antenna coupling, etc., can solve the problems of front-to-back ratio difference, large cross-polarization, narrow bandwidth, etc., and achieve surface wave suppression, stable mechanical structure, and simple structure Effect

Pending Publication Date: 2021-12-03
CHONGQING UNIV
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  • Abstract
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Problems solved by technology

However, most of the current research on polarization reconfigurable antennas focuses on single-band, and there are few reports involving dual-band and multi-band
The currently reported dual-band polarization reconfigurable antennas have problems such as large cross-polarization, poor front-to-back ratio, and too narrow bandwidth.

Method used

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  • High-isolation dual-band polarized reconfigurable antenna based on SIW technology
  • High-isolation dual-band polarized reconfigurable antenna based on SIW technology
  • High-isolation dual-band polarized reconfigurable antenna based on SIW technology

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Embodiment Construction

[0047] The present invention will be further described below in conjunction with drawings and embodiments.

[0048] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right" , "vertical", "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing this The embodiments and simplified descriptions of the invention do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed a...

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Abstract

The invention provides a high-isolation dual-band polarized reconfigurable antenna based on an SIW (substrate integrated waveguide) technology, which comprises a feed layer structure, a radiation layer structure and a fan-shaped branch direct-current bias structure, and is characterized in that the radiation layer structure is bonded above the feed layer structure in an aligned manner through silver paste; the fan-shaped branch direct-current bias structure for realizing antenna direct-current bias is arranged on the feed layer structure, and the feed layer structure comprises a substrate integrated waveguide feed layer metal cavity which is composed of a plurality of first metal through holes, an upper metal floor and a lower metal floor, wherein the upper metal floor and the lower metal floor are located at the upper end and the lower end of the feed layer structure respectively. The upper metal floor is provided with a polarization reconfigurable slot, and the radiation layer structure comprises a substrate integrated waveguide radiation layer metal cavity formed by a plurality of second metal through holes penetrating through the radiation layer structure; the antenna provided by the invention has the advantages of double frequency bands, high isolation, directional radiation and reconfigurable polarization.

Description

technical field [0001] The invention relates to the technical field of polarization reconfigurable antennas, in particular to a high-isolation dual-band polarization reconfigurable antenna based on SIW technology. Background technique [0002] With the rapid development of wireless communication, it is necessary to develop miniaturized, multi-functional and integrated antenna units to enrich the functions of wireless communication detection equipment. Polarization diversity technology can greatly improve the utilization rate of the frequency band and reduce the multipath effect, and has attracted more and more attention. Currently, there are three main ways to achieve polarization reconfigurability. One is to add radio frequency devices to the slots of the floor to change the polarization state of the antenna; the other is to realize the reconfigurability of different linear polarization and circular polarization of the antenna by changing the feed network; A radio frequen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/50H01Q1/48H01Q13/10H01Q9/04H01Q15/24H01Q1/52
CPCH01Q1/36H01Q1/50H01Q1/48H01Q13/10H01Q9/0407H01Q15/24H01Q1/52
Inventor 唐明春孟奥运陈晓明丁卓富李梅易达
Owner CHONGQING UNIV
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