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A Conical Beam Antenna with Wide Beam Coverage Based on Beam Switching Technology

A coverage and beam switching technology, applied in the field of WLAN, guidance system, and satellite communication, it can solve the problems of the difficulty of conical beam antenna and the reduction of antenna gain, and achieve the effect of compact structure, reduced occlusion and mutual interference, and high gain.

Active Publication Date: 2021-09-28
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, while achieving wide beam coverage, the gain of the antenna will decrease, because high gain and wide beam coverage are mutually limited, that is, it is difficult to achieve high gain and wide beam coverage at the same time.

Method used

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  • A Conical Beam Antenna with Wide Beam Coverage Based on Beam Switching Technology
  • A Conical Beam Antenna with Wide Beam Coverage Based on Beam Switching Technology
  • A Conical Beam Antenna with Wide Beam Coverage Based on Beam Switching Technology

Examples

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Embodiment

[0034] A conical beam antenna with wide beam coverage based on beam switching technology, including a coaxial CTS antenna 1 and a three-stage circular waveguide aperture antenna 2 arranged vertically and collinearly with different beam pointing angles.

[0035] The coaxial CTS antenna 1 includes a coaxial waveguide 11, a top cover 12, five metal discs 13, a bottom cover 14, and a short-circuit metal ring 15; the top cover 12 and the bottom cover 14 are respectively arranged on the coaxial waveguide 11 5 metal disks 13 are arranged at equal intervals between the top cover 12 and the bottom cover 14, and the short-circuit metal ring 15 is arranged at the bottom of the bottom cover 14 and connected to the coaxial waveguide 11, the inside of the coaxial waveguide 11 and The area enclosed by the top cover 12 , five metal disks 13 , the bottom cover 14 and the short-circuit metal ring 15 is filled with polytetrafluoroethylene 16 .

[0036] Such as Figure 5 Shown is a schematic diagr...

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Abstract

The invention discloses a wide beam coverage conical beam antenna based on beam switching technology, including a coaxial CTS antenna and a three-stage circular waveguide aperture antenna which are vertically collinear and have different beam pointing angles. The coaxial CTS antenna consists of Six coaxial CTS units are cascaded in a nested coaxial structure. The three-stage circular waveguide aperture antenna is composed of three circular waveguides with increasing apertures and coaxial feeding probes. The three-stage circular waveguide aperture antenna and the coaxial CTS antenna are installed vertically and collinearly. The invention completes the beam switching by switching the feed, thereby realizing a conical beam with a wide beam coverage, maintaining a high gain, and overcoming the contradictory relationship between the antenna gain and the half-power beam width.

Description

technical field [0001] The invention relates to a wide beam coverage conical beam antenna based on the beam switching technology, which is applied in the fields of satellite communication, WLAN, guidance system and the like. Background technique [0002] Cone beam antenna is a kind of antenna with radial symmetry in lobe pattern and polarization direction. It has no radiation in the normal direction of the aperture, and the maximum radiation direction is on the cone surface at a certain inclination angle with the normal. It is a kind of antenna with Circumferentially symmetrical antennas. In satellite communication, indoor WLAN communication and guidance systems, in order to avoid signal connection interruption caused by the random movement of terminal equipment or targets, the antenna patterns of terminal equipment and missile-borne fuzes are required to have circumferential omnidirectionality, and the cone beam The appearance of the antenna makes this problem solved. Gen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/50H01Q1/52H01Q1/12H01Q1/36H01Q3/24
CPCH01Q1/12H01Q1/36H01Q1/50H01Q1/52H01Q1/521H01Q3/24
Inventor 齐世山尚伦申吴文孙勇瞿安俐
Owner NANJING UNIV OF SCI & TECH
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