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Compact-structure-type broad-bandwidth quasi omni-directional antenna

A compact, quasi-omnidirectional technology, applied in antenna grounding device, radiating element structure, antenna grounding switch structure connection, etc. Achieve miniaturization, reduce antenna size, and change the effect of impedance bandwidth

Active Publication Date: 2019-03-08
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a compact broadband quasi-omnidirectional antenna to solve the problems of miniaturization, broadband, and pattern stability in current wireless communication antenna design

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Embodiment Construction

[0028] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but it is not used as a basis for any limitation on the invention.

[0029] Such as Figure 1-4 As shown, it is a structural schematic diagram of a compact broadband quasi-omnidirectional antenna of the present invention. The antenna is mainly composed of upper, middle and lower three-layer dielectric boards, metal structures printed on the three-layer dielectric boards, two sets of metal short-circuit columns connecting the middle and lower two-layer dielectric boards, and a coaxial inner core for feeding. The metal structure printed on the dielectric board mainly includes a group of parasitic patches 4 printed symmetrically on the upper layer of the upper dielectric board 1, and a pair of metal patches 5 with rectangular notches printed on t...

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Abstract

The present invention discloses a compact-structure-type broad-bandwidth quasi omni-directional antenna. The antenna comprises three dielectric plates, metal structures separately printed on the uppersurface and the lower surface of the three dielectric plates, two groups of symmetrically distributed short-circuit columns arranged between a middle layer dielectric plate and a lower layer dielectric plate and a coaxial inner core used for power feeding. A pair of symmetrically distributed parasitic patches are printed on the upper surface of an upper layer dielectric plate of the antenna. Symmetrically distributed metal patches with rectangular notches are printed on the upper surface of the middle layer dielectric plate, and a rectangular band-shaped monopole antenna is printed on the lower surface of the middle layer dielectric plate. A metal floor is printed on the lower surface of the lower layer dielectric plate. The metal patches on the upper surface of the middle layer dielectric plate are connected with the printed metal floor of the lower surface of the lower layer dielectric plate via the two groups of short-circuit columns, and the monopole antenna on the lower surface of the middle layer dielectric plate feeds power via the coaxial inner core penetrating the floor. The antenna has the advantages of broad bandwidth, small size, compact structure, stable radiation pattern and quasi omni-direction, and the antenna is suitable for the field of wireless communication.

Description

technical field [0001] The invention relates to antenna design technology in the field of wireless communication, in particular to the design of a compact wide-band quasi-omnidirectional antenna. Background technique [0002] With the advancement of modern technology and the improvement of people's living standards, various wireless communication devices are more and more widely used in people's daily life, and antennas as front-end devices of wireless communication devices are playing an increasingly important role. At the same time, due to the continuous increase of people's demand for wireless communication equipment and the continuous improvement of the requirements for the portability of equipment, the design of antennas is also facing new challenges. Antennas with miniaturization, broadband, and stable pattern have become the design direction of antenna engineers. Although the traditional monopole antenna has a good omnidirectional pattern, it is limited by defects su...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50
CPCH01Q1/38H01Q1/48H01Q1/50
Inventor 胡伟刘学康钱龙冯天喜董健身李长江
Owner XIDIAN UNIV
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