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Dual-polarized filtering patch antenna based on resonator type probe feeding

A patch antenna and resonator technology, applied in the field of communication antennas, can solve the problems of increasing antenna loss and affecting antenna radiation characteristics, and achieve the effects of good filtering characteristics, simple processing, and avoiding inter-symbol crosstalk.

Active Publication Date: 2021-01-05
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the design of the dual-polarization filter patch antenna has great application prospects. However, in the existing research on the dual-polarization filter patch antenna, there are designs that will increase the antenna loss or affect the radiation characteristics of the antenna.

Method used

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  • Dual-polarized filtering patch antenna based on resonator type probe feeding
  • Dual-polarized filtering patch antenna based on resonator type probe feeding
  • Dual-polarized filtering patch antenna based on resonator type probe feeding

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with specific examples.

[0023] see Figure 1 to Figure 6 As shown, this embodiment provides a dual-polarized filter patch antenna based on resonator-type probe feeding, including a first dielectric plate 1, a second dielectric plate 3, and a first feed an electrical structure F1 and a second feed structure F2;

[0024] Wherein, the first dielectric plate 1 is a rectangular dielectric plate with a patch 2 on its upper surface, and the patch 2 is a rectangular metal patch for radiating energy; the first dielectric plate 1 and the second medium A distance of 14.5 mm is kept between the boards 3 to form an air layer 5 for adjusting the antenna quality factor and the coupling between the patch and the probe. The second dielectric board 3 has four card slots for two The first feeding probe P1 and the second feeding probe P2 of the feeding structure are installed, and the upper surface of the second diele...

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Abstract

The invention discloses a dual-polarized filtering patch antenna based on resonator type probe feeding. The dual-polarized filtering patch antenna comprises a first dielectric plate, a second dielectric plate, a first feeding structure and a second feeding structure which are sequentially arranged from top to bottom, wherein a patch is arranged on the first dielectric plate, and a preset distanceis kept between the first dielectric plate and the second dielectric plate to form an air layer; each feed structure comprises a first feed probe and a second feed probe which are vertically installedin the second dielectric plate clamping groove respectively, and a feed port, a coupling feed line and a plurality of resonators which are arranged on the lower surface of the second dielectric plate, the two feed probes are provided with resonators, and the resonators can excite patches on the first dielectric plate at the same time. Cross coupling is introduced to realize filtering, and + / -45-degree polarization is realized; According to the METHOD, one part of the resonator is used as a feed probe, dual polarization of the antenna is realized, four-order filtering can be carried out on theantenna, the filtering characteristic is good, and the whole antenna is simple in structure and convenient to process.

Description

technical field [0001] The invention relates to the technical field of communication antennas, in particular to a dual-polarization filter patch antenna based on resonator type probe feeding. Background technique [0002] With the rapid development of wireless communication and the commercialization of fifth-generation communication systems, there are higher requirements for base station antennas, such as improving the filtering function and reducing the volume size. The dual-polarized antenna can save the number of base station antennas and ensure the effect of diversity reception, and is widely used in the design of base station antennas; at the same time, the patch antenna is light in weight, small in size, easy to conform, easy to process, and low in cost. And other advantages are also widely used in wireless communication systems. Therefore, integrating the filtering function of the patch antenna into the dual-polarized antenna can not only reduce the design of the pos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/50H01Q9/04H01Q1/24H01Q1/52H01Q1/48
CPCH01Q1/246H01Q1/48H01Q1/50H01Q1/52H01Q9/0407
Inventor 陈付昌向凯燃
Owner SOUTH CHINA UNIV OF TECH
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