Low-elevation-angle gain-enhanced wide-angle dual circularly polarized antenna and device

A dual-circular polarization, low-elevation technology, applied in antennas, resonant antennas, antenna components, etc., can solve the problems of affecting the signal-to-noise ratio quality of the communication process, difficult to meet application requirements, and large antenna loss, and improve communication. quality, improve radiation pattern, reduce transmission loss effect

Active Publication Date: 2021-10-12
DEZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the need to track and measure high-speed targets under various polarization modes and climatic conditions, it is difficult for a single polarization mode to meet the above-mentioned application requirements
[0004] The inventors found that in the prior art, in order to obtain wide-angle radiation and broadband characteristics, methods such as etching

Method used

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  • Low-elevation-angle gain-enhanced wide-angle dual circularly polarized antenna and device
  • Low-elevation-angle gain-enhanced wide-angle dual circularly polarized antenna and device
  • Low-elevation-angle gain-enhanced wide-angle dual circularly polarized antenna and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Embodiment 1: (certain aircraft is used as maritime satellite communication)

[0059] Step 1: The antenna unit is made of silver-plated metal copper, the cutout wall is made of Fpcb dielectric substrate, the power distribution network is made of F4B dielectric substrate, and the metal base is made of metal aluminum with low density.

[0060] Step 2: According to the design requirements of the system on the antenna's electrical performance, mechanical performance, three-proof (anti-mold, anti-moisture, anti-salt spray) and space size constraints, the design and conformal installation of the wide-beam circularly polarized antenna were carried out design. The height of the antenna is about 0.1 times of the working wavelength, and the optimized 3dB beamwidth is 157 degrees.

[0061] Step 3: Prepare an inverted U-shaped structure by means of laser cutting and abrasive stamping.

[0062] The inverted U-shaped structure is made of metal copper sheet material with a thickness...

Embodiment 2

[0066] Embodiment 2: (a certain aircraft is used as a navigation antenna)

[0067] Step 1: The antenna unit is made of silver-plated metal copper, the cutout wall is made of Fpcb dielectric substrate, the power distribution network is made of F4B dielectric substrate, and the metal base is made of metal aluminum with low density.

[0068] Step 2: According to the design requirements of the system on the antenna's electrical performance, mechanical performance, three-proof (anti-mold, anti-moisture, anti-salt spray) and space size constraints, the design and conformal installation of the wide-beam circularly polarized antenna were carried out design. The height of the antenna is approximately 0.1 times the operating wavelength, and the optimized 3dB beamwidth is increased by 47 degrees.

[0069] Step 3: Prepare the "inverted U" structure by means of laser cutting and abrasive stamping.

[0070] The inverted U-shaped structure is made of metal copper sheet material with a thic...

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Abstract

The invention belongs to the field of wireless communication, and provides a low-elevation-angle gain-enhanced wide-angle dual circularly polarized antenna and device. The low-elevation-angle gain-enhanced wide-angle dual-circularly polarized antenna comprises a notch wall, a C-shaped feed network, a lower dielectric substrate, an upper dielectric substrate, an inverted U-shaped feed structure, a metal radiation patch and a pair of coaxial conversion connectors; the notch wall is arranged around the lower dielectric substrate, and the C-shaped feed network is arranged on the upper surface of the lower dielectric substrate; the C-shaped feed network is provided with a plurality of feed branches and comb-shaped artificial surface plasmon structures, and the feed branches are connected with the feed end of the inverted U-shaped feed structure; the inverted U-shaped feed structure is arranged between the C-shaped feed network and the metal radiation patch; the metal radiation patch is arranged at the upper side of the inverted U-shaped feed structure and laid on the upper surface of the upper dielectric substrate; and the pair of coaxial conversion connectors is arranged at the tail end of the C-type feed network and located below the lower dielectric substrate.

Description

technical field [0001] The invention belongs to the field of wireless communication, in particular to a wide-angle double-circularly polarized antenna and equipment with enhanced gain at low elevation angles. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] With the rapid development of modern communication technology, the antenna is an important part of wireless communication, radar and other systems, and the performance of the antenna directly affects the performance of the entire system to a large extent. In the low latitudes (southern and northern latitudes) of the earth, the poor gain at low elevation angles of the antenna will directly affect the performance of communication systems such as aviation, satellite communication, radar, remote control and telemetry. In addition, when the satellite signal covers the marginal area and the a...

Claims

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Application Information

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IPC IPC(8): H01Q9/04H01Q1/00H01Q5/50H01Q1/22H01Q1/24
CPCH01Q9/0428H01Q9/045H01Q1/002H01Q5/50H01Q1/22H01Q1/241Y02A90/10
Inventor 曲培树董文会刘金海
Owner DEZHOU UNIV
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