A Wide Bandwidth Beam Circularly Polarized Dielectric Resonator Antenna for X-Band

A dielectric resonator, wide-bandwidth technology, applied in the field of antennas, can solve the problem of discounting the broadband advantages of antennas, and achieve the effect of increasing the 3dB axial ratio bandwidth, low profile, and widening the impedance bandwidth.

Inactive Publication Date: 2019-02-15
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In the "CompactWideband Circularly Polarized Rectangular Dielectric Resonator Antenna With Dual Underlaid Hybrid Couplers" paper "CompactWideband Circularly Polarized Rectangular Dielectric Resonator Antenna With Dual Underlaid Hybrid Couplers" in "Microwave and Optical Technology Letters" 2010, Volume 52, Issue 12, the feed network is used to implement dual feed technology. The axial ratio bandwidth of the dielectric resonator antenna is It has been greatly improved, but the extremely complex feed network has compromised the broadband advantage of the antenna

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  • A Wide Bandwidth Beam Circularly Polarized Dielectric Resonator Antenna for X-Band

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Embodiment Construction

[0023] A wide-bandwidth beam circularly polarized dielectric resonator antenna suitable for X-band, which is a specific embodiment of the present invention, will be further described below in conjunction with the accompanying drawings.

[0024] Such as figure 1 , 2 As shown, the wide-bandwidth beam circularly polarized dielectric resonator antenna suitable for the X-band includes: a square dielectric substrate covered with a metal patch on the front, a rectangular dielectric resonator on the metal patch, and a dielectric resonator on the back of the dielectric substrate. L-shaped feeding microstrip line; the size of the dielectric substrate is 100mm×100mm×0.5mm, and the choice is Taconic RF-35 with a relative permittivity of 3.5 and a loss tangent of 0.0018; the length of the dielectric resonator (material) and The width is the same, 6.8mm×6.8mm, and the height is 6.2mm. The RogersTMM10 with a relative permittivity of 9.2 and a loss tangent of 0.0022 is selected. The four cor...

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Abstract

The invention provides a wide-bandwidth beam circularly polarized dielectric resonator antenna suitable for X-band, which belongs to the field of antennas. It includes a dielectric substrate covered with a metal patch on the front, a rectangular dielectric resonator arranged on the metal patch and an L-shaped feeding microstrip line arranged on the back of the dielectric substrate. By digging out four rectangular dielectric blocks of the same size at the four corners of the bottom of the rectangular dielectric resonator, and using cross-shaped coupling slots and L-shaped microstrip line feeds at the same time, its broadband characteristics are realized. The antenna has the advantages of wide frequency band, low profile, easy processing, high stability of pattern in the working frequency band, wide beam width and the like.

Description

technical field [0001] The invention belongs to the field of antennas, and in particular relates to a wide-bandwidth beam circularly polarized dielectric resonator antenna suitable for X-band. The antenna has wide impedance bandwidth and axial ratio bandwidth. Background technique [0002] Since the dielectric resonator was proposed to be used in the radiation unit, the research on the dielectric resonant antenna has received extensive attention at home and abroad. Because the dielectric resonant antenna has the advantages of small size, light weight, low loss, easy excitation, and no surface wave excitation, it has very high practical value. Usually, the circular polarization bandwidth of the dielectric resonant antenna is very narrow, only about 6%. With the gradual improvement of wireless communication's bandwidth and communication rate requirements, research on dielectric resonant antennas with broadband circular polarization characteristics has very practical signific...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/50
CPCH01Q1/38H01Q1/50
Inventor 肖绍球熊义高张超
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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