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Water medium resonator antenna with polarization and directional diagram reconfigurability

A water medium, resonator technology, applied in the direction of antenna, antenna grounding device, antenna grounding switch structure connection, etc., can solve the problem of narrowing impedance bandwidth, etc., and achieve the effect of wide axial ratio bandwidth and wide impedance bandwidth.

Pending Publication Date: 2018-07-06
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For water dielectric resonator antennas, higher dielectric constant results in narrower impedance bandwidth

Method used

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  • Water medium resonator antenna with polarization and directional diagram reconfigurability
  • Water medium resonator antenna with polarization and directional diagram reconfigurability
  • Water medium resonator antenna with polarization and directional diagram reconfigurability

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Embodiment Construction

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

[0023] Such as figure 1 , 2 As shown, the water dielectric resonator antenna provided in this embodiment includes a dielectric container 1, a dielectric support column 2, a feeding probe 3, a coaxial feeding port 4 and a metal floor 5; wherein, the dielectric container 1 is A cylinder or a cylinder-like structure, in which two mirror-symmetric cavities 6, 7 are formed, the two cavities 6, 7 are cylinders or cylinder-like structures, located on the left and right sides of the medium container 1, the two An orifice valve 8, 9 is left on the top of each cavity 6, 7 respectively, by injecting high dielectric constant medium liquid from the orifice valve, the circular polarization of different rotation directions of the antenna can be realized, if no liquid is injected, the antenna is Linear polarization; the dielectric container 1 is located above the metal floor 5, and is suppo...

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Abstract

The invention discloses a water medium resonator antenna with polarization and directional diagram reconfigurability. The water medium resonator antenna comprises a medium container, medium supportingcolumns, a feed probe, a coaxial feed port and a metal floor; two chambers are formed in the medium container, hole valves are arranged at the tops of the two chambers, high dielectric constant medium liquid is injected from the hole valves to achieve circular polarization of the antenna in different directions of turning, and if no liquid is injected, the antenna is linearly polarized; the medium container is located above the metal floor and supported by the medium supporting columns, so that an air layer is formed between the medium container and the metal floor, a part of the feed probe extends into the medium container for feeding and is located between the two chambers, and the other part of the feed probe penetrates downwards through the metal floor and then is connected with the coaxial feed port. The antenna has the advantages of polarization and directional diagram reconfigurability, high radiation efficiency and wide impedance bandwidth. The antenna has the advantage of wide axial ratio bandwidth when the antenna is circularly polarized, and can be applied to a satellite communication system.

Description

technical field [0001] The invention relates to the technical field of liquid antennas, in particular to a water dielectric resonator antenna with reconfigurable polarization and pattern. Background technique [0002] As communication systems have higher and higher requirements for small size, communication applications have higher and higher requirements for antennas with small size, high efficiency and high gain. In some systems in the communication field, traditional antennas can no longer meet the corresponding requirements, and new antennas have emerged as the times require. [0003] The main material of the traditional antenna is metal, while the liquid antenna uses conductive liquid instead of metal material as the radiation element of the antenna. As one of many new antennas, the liquid antenna has the following advantages: (1) Small size, when the dielectric resonator antenna uses liquid material as the medium, the antenna size can be reduced in principle This co...

Claims

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Application Information

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IPC IPC(8): H01Q1/50H01Q1/48H01Q15/24H01Q3/00
CPCH01Q1/48H01Q1/50H01Q3/00H01Q15/24
Inventor 褚庆昕王敏
Owner SOUTH CHINA UNIV OF TECH
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