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Broadband-circularly-polarized dielectric resonator antenna

A dielectric resonator and circular polarization technology, which is applied in the field of broadband wireless communication terminal antenna structure, can solve the problems of increasing processing difficulty

Inactive Publication Date: 2014-04-02
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The first type needs to introduce a complex feed structure, and the second type will greatly increase the difficulty of processing

Method used

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  • Broadband-circularly-polarized dielectric resonator antenna
  • Broadband-circularly-polarized dielectric resonator antenna
  • Broadband-circularly-polarized dielectric resonator antenna

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Embodiment Construction

[0018] A broadband circularly polarized dielectric resonator antenna, comprising a rectangular dielectric resonator 1, a dielectric substrate 2, a metal floor 6, a microstrip feeder 5, a short contact 7, a single-arm rectangular spiral slot 3, a chip resistor 4; a metal floor 6 Pasted on the dielectric substrate 2, the rectangular dielectric resonator 1 is pasted on the metal floor 6, and the short contact 7 connects the dielectric substrate 2 and the metal floor 6;

[0019] The single-arm rectangular spiral gap 3 is formed by connecting four linear grooves of different lengths within the coverage of the rectangular dielectric resonator in the metal floor; among the four linear grooves of different lengths, the tail end of the shortest linear groove is the same as the second shortest One end of the straight groove is vertically connected, the other end of the second shortest straight groove is vertically connected to one end of the second longest straight groove, the other end ...

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Abstract

The invention provides a broadband-circularly-polarized dielectric resonator antenna. The broadband-circularly-polarized dielectric resonator antenna comprises a rectangular dielectric resonator, a dielectric substrate, a metallic floor, a microstrip feeder line, a short connection point, a single-arm rectangular spiral gap and a chip resistor, wherein the single-arm rectangular spiral gap is formed by connecting four different-length linear grooves, in a range covered by the rectangular dielectric resonator, in the metallic floor; the chip resistor is arranged at the middle tail part of a longest-side linear groove of the single-arm rectangular spiral gap, and the microstrip feeder line located at the dielectric substrate side stretches across the shortest side of the single-arm rectangular spiral gap and is connected with the metallic floor through the short connection point; the rectangular dielectric resonator serves as a radiation part of the antenna, and a feeding part of the antenna is formed by the microstrip feeder line and the single-arm rectangular spiral gap, of which the tail is provided with the chip resistor. Through feeding the dielectric resonator antenna by introducing the chip resistor loaded rectangular spiral gap, the function of broadband circular-polarization is realized through single point feed based on a simple dielectric resonator structure.

Description

technical field [0001] The invention relates to antenna technology, in particular to an antenna structure for a broadband wireless communication terminal. Background technique [0002] At present, there are two main methods to realize the broadband circular polarization of the dielectric resonator antenna: the first is to use multi-point feeding, and the second is to use an improved dielectric resonator structure. The first requires the introduction of a complex feed structure, and the second will greatly increase the difficulty of processing. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a broadband circularly polarized dielectric resonator antenna with a simple structure. [0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is that a broadband circularly polarized dielectric resonator antenna includes a rectangular dielectric resonator, a dielectric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/50H01Q15/24H01Q13/08
Inventor 潘锦邹孟孙从科全梦
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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