Broad-axial-ratio-beam antenna loaded by single dielectric

A single-dielectric, axial-ratio technology, applied to antennas, antenna parts, antenna grounding devices, etc., can solve the problems of processing difficulty and application cost increase, incompatibility of index performance, and limitation of wide application, etc., to achieve a good width-axis ratio The effects of beam, small size, and simple antenna structure

Active Publication Date: 2019-05-28
DALIAN MARITIME UNIVERSITY +1
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  • Abstract
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Problems solved by technology

Although there are many research results on single-bandwidth axis-ratio beam circular polarization technology, none of the existing research has achieved ideal results. Often, the axis-ratio beam of the antenna is broadened, but the structure complexity, processing difficulty and application The cost is greatly increased, and the performance of many indicators is often not available at the same time, which limits its wide application in low-cost wireless communication systems

Method used

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  • Broad-axial-ratio-beam antenna loaded by single dielectric
  • Broad-axial-ratio-beam antenna loaded by single dielectric
  • Broad-axial-ratio-beam antenna loaded by single dielectric

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Embodiment Construction

[0020] In order to make the technical solutions and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention:

[0021] Such as figure 1 , 2 , 3 shows a single medium-loaded wide-axis ratio beam antenna includes a loading medium 1 and a circularly polarized patch antenna 2 . The loading medium 1 includes a medium block 11 and an air chamber 12 formed hollow on the bottom surface. The circularly polarized patch antenna 2 includes a circular patch 21 , a first dielectric plate 22 , a floor 23 , a second dielectric plate 24 and a single-frequency feed network 25 arranged in order from top to bottom. The single-frequency feed network 25 includes a single-frequency branch line coupler 251 , a feed probe 252 , a ground short-circuit pin 253 and a 50Ω matching resistor.

[0022] The technical index that th...

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Abstract

The invention discloses a broad-axial-ratio-beam antenna loaded by a single dielectric, comprising a loading dielectric and a circularly polarized patch antenna. The loading dielectric comprises a dielectric block and an air cavity formed by hollowing the bottom surface. The circularly polarized patch antenna comprises a circular patch, a first dielectric plate, a floor, a second dielectric plateand a single-frequency feed network arranged in turn from top to bottom. The single-frequency feed network comprises a single-frequency branch line coupler, a feed probe, a grounding short circuit pinand a matching resistor. Because a loading dielectric design of a special structure is adopted, the traditional circularly polarized patch antenna achieves a good axial ratio beam broadening effect.In addition, the antenna has the advantages of simple structure, stable gain and small size, and is very suitable for wide application and promotion.

Description

technical field [0001] The invention relates to the field of wide-axis ratio beam antennas, in particular to a wide-axis ratio beam antenna loaded by a single medium. Background technique [0002] With the steady improvement of the world's economic level, people's demand for the development of wireless communication systems is getting higher and higher. However, the propagation of electromagnetic signals in space is subject to more and more interference, which poses a great challenge to the stability of wireless communication systems. For example, in radio frequency identification systems, satellite navigation communication systems and wireless transmission systems, the handheld devices and airborne devices are often in constant movement. At this time, the base station antenna often needs to receive or send electromagnetic signals in a wide range to Achieve uninterrupted communication. As an important part of modern wireless communication systems, circularly polarized ante...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q1/00
Inventor 刘宏梅牟辰房少军贾潇王钟葆傅世强
Owner DALIAN MARITIME UNIVERSITY
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