Ultra-wideband multi-beam cylindrical lens antenna

A cylindrical lens and multi-beam technology, applied to antennas, devices that enable antennas to work in different bands at the same time, electrical components, etc., can solve the problems of wide bandwidth, difficult installation on metal surfaces, narrow bandwidth, etc., and achieve low profile, Excellent multi-beam radiation performance, simple processing effect

Active Publication Date: 2020-05-29
SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the shortcomings of the existing multi-beam lens antennas, which generally have a narrow bandwidth (less than 3 octaves), or a wider bandwidth but are not easy to install on metal surfaces, the present invention provides an ultra-wideband (up to 3 octaves), Multi-beam lens antenna with simple process, low profile, and mountable on metal surfaces

Method used

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  • Ultra-wideband multi-beam cylindrical lens antenna
  • Ultra-wideband multi-beam cylindrical lens antenna

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Embodiment Construction

[0034] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific implementations of the present invention are now described. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention, that is, the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0035] Such as figure 1 and 2 As shown, this embodiment provides an ultra-wideband multi-beam cylindrical lens antenna, including a feed antenna 1, a metal cover plate 2, a wave-absorbing material 3, a dielectric lens body 4, and a supporting and fixing structure 5, wherein:

[0036] The feed antenna...

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Abstract

The invention relates to the technical field of antennas and discloses an ultra-wideband multi-beam cylindrical lens antenna. The antenna comprises two metal parallel waveguide plates, two cylindricalwave-absorbing materials, a cylindrical medium and a plurality of feed source antennas. Each of the two metal parallel waveguide plates is formed by splicing two semicircles with different radiuses;the semicircle with a smaller radius is a radiation area; and the semicircle with a larger radius is a feed source area, the two cylindrical wave-absorbing materials are arranged between the two metalparallel waveguide plates in parallel, the cylindrical medium is arranged between the two cylindrical wave-absorbing materials to form a three-layer sandwich structure, and the plurality of feed source antennas are circumferentially arranged on a non-radiation aperture of the cylindrical medium. A working bandwidth of the ultra-wideband multi-beam cylindrical lens antenna can reach three octaves,and excellent multi-beam radiation performance can be kept in an ultra-wideband.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to an ultra-wideband multi-beam cylindrical lens antenna. Background technique [0002] The multi-beam lens antenna is an antenna that uses optical principles to convert spherical waves or cylindrical waves formed by multiple feed sources into quasi-plane waves, thereby obtaining multiple pencil-shaped, fan-shaped or other shaped beams on a common radiation aperture. Applied in technical fields such as satellite communication, radar and electronic countermeasures, it has the advantages of high gain, wide beam coverage and good beam consistency. However, the current research mainly focuses on improving the antenna radiation efficiency and expanding the beam width, and seldom involves UWB research. [0003] In the patent with the publication number CN 108075236A, an ultra-wideband lens antenna based on periodic half-height pins is disclosed, which realizes a working bandwidth of 9 G...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/08H01Q19/06H01Q5/25
CPCH01Q15/08H01Q19/06H01Q5/25
Inventor 况泽灵罗旭何亚东张莹左乐徐利明张浩斌范保华李培李鹏
Owner SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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