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Wide-beam-coverage conical beam antenna based on beam switching technology

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

Active Publication Date: 2020-11-13
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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  • Wide-beam-coverage conical beam antenna based on beam switching technology
  • Wide-beam-coverage conical beam antenna based on beam switching technology
  • Wide-beam-coverage conical beam antenna based on beam switching technology

Examples

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Effect test

Embodiment

[0034] A conical beam antenna with wide beam coverage based on beam switching technology includes a coaxial CTS antenna 1 and a three-stage circular waveguide aperture antenna 2 that are vertically collinear and have 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 . At both ends, five metal discs 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 is connected to the coaxial waveguide 11. Inside the coaxial waveguide 11 and the The area surrounded by the top cover 12 , the five metal discs 13 , the bottom cover 14 and the short-circuit metal ring 15 is filled with polytetrafluoroethylene 16 .

[0036] like Figure 5 A s...

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Abstract

The invention discloses a wide-beam-coverage conical beam antenna based on a beam switching technology. The antenna comprises a coaxial CTS antenna and a three-stage circular waveguide aperture antenna which are vertically and collinearly arranged and have different beam pointing angles, the coaxial CTS antenna is formed by cascading six coaxial CTS units, and a nested coaxial structure is adopted. The three-stage circular waveguide aperture antenna is composed of three circular waveguides of which the apertures are sequentially increased, and a coaxial feed probe. The three-stage circular waveguide aperture antenna and the coaxial CTS antenna are vertically and collinearly installed. According to the invention, beam switching is completed by switching feed, so that a conical beam with a wide beam coverage range is realized, a relatively high gain is maintained, and a contradictory relationship between an antenna gain and a half-power beam width is overcome.

Description

technical field [0001] The invention relates to a wide beam coverage cone beam antenna based on beam switching technology, which is applied to the fields of satellite communication, WLAN and guidance systems. Background technique [0002] Cone beam antenna is a kind of antenna with radial symmetry of 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 with a certain inclination to the normal. Circumferentially symmetrical antenna. In satellite communication, indoor WLAN communication and guidance systems, in order to avoid the interruption of signal connection due to the irregular movement of terminal equipment or targets, the antenna patterns of terminal equipment and missile-borne fuzes are required to have circumferential omnidirectionality, while cone-shaped beams The advent of antennas solved this problem. Generally, a conical beam antenna can provide stable si...

Claims

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Application Information

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Patent Type & Authority Applications(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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