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A Frequency and Polarization Reconfigurable Patch Antenna

A patch antenna and frequency technology, applied in antennas, antenna grounding devices, devices that enable antennas to work in different bands at the same time, can solve problems such as large antenna fluctuations, achieve small gain fluctuations, low profile, and good polarization The effect of the characteristic

Active Publication Date: 2020-09-11
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing frequency and polarization reconfigurable antennas can generally be realized by varactors, and then the gain of these antennas fluctuates greatly over the entire frequency range

Method used

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  • A Frequency and Polarization Reconfigurable Patch Antenna
  • A Frequency and Polarization Reconfigurable Patch Antenna
  • A Frequency and Polarization Reconfigurable Patch Antenna

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Embodiment Construction

[0030] The technical solution of the present invention will be further introduced below in combination with specific embodiments.

[0031] This specific embodiment discloses a frequency and polarization reconfigurable patch antenna, such as image 3 As shown, a dielectric substrate 1 is included, a square metal patch 21 is provided on the upper surface of the dielectric substrate 1 , and a ground layer 22 is provided on the lower surface of the dielectric substrate 1 . Such as figure 1 and 2 As shown, the antenna also includes three groups of grounding vias arranged in the dielectric substrate 1, which are respectively: a first grounding via 31, a second grounding via 32, a third grounding via 33 and a fourth grounding via The first group of ground vias consisting of 34, the second group of ground vias consisting of the fifth ground via 41, the sixth ground via 42, the seventh ground via 43 and the eighth ground via 44, the ninth group of ground vias The third group of grou...

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PUM

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Abstract

The invention discloses a frequency polarization reconfigurable patch antenna. The antenna includes a dielectric substrate, the upper surface of the dielectric substrate is provided with a metal patch, The lower surface of the dielectric substrate is provided with a ground plane, and the antenna further comprises three groups of ground via holes arranged in the dielectric substrate, wherein the ground via holes connect the metal patch and the ground plane, and the antenna further comprises two pairs of controllable perturbation parts arranged on the metal patch, wherein the three groups of ground via holes and the two pairs of controllable perturbation parts are connected with switches respectively. The antenna can work at different frequencies by changing the states of three groups of ground via holes. The antenna has three different polarization characteristics: linear polarization, left-handed circular polarization and right-handed circular polarization, and satisfies better polarization characteristics, better standing wave characteristics, small gain fluctuation, low profile, small volume, simple implementation and easy integration.

Description

technical field [0001] The invention relates to antenna technology, in particular to a frequency and polarization reconfigurable patch antenna. Background technique [0002] The rapid development of wireless communication technology puts forward higher requirements for the system. The traditional single-function antenna cannot meet the current needs well, and has become a bottleneck restricting the development of system performance. The proposal and development of reconfigurable antennas provide a good solution to these problems. Reconfigurable antennas can increase system capacity through frequency multiplexing, and can solve the problem of polarization mismatch in communication, thereby improving communication quality. [0003] Since the modern single-layer PCB technology is very mature, the processing accuracy is also guaranteed in the not very high frequency band. At the same time, the processed products can have the characteristics of low profile, small volume and high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q5/314H01Q15/24
CPCH01Q1/38H01Q1/48H01Q5/314H01Q15/24
Inventor 郝张成胡俊
Owner SOUTHEAST UNIV
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