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A Broadband Millimeter Wave Dual Circular Polarization Dual Mode Orbital Angular Momentum Antenna

A technology of orbital angular momentum and dual circular polarization, which is applied to antennas, devices that enable antennas to work in different bands at the same time, and the structural form of radiation elements, can solve problems such as poor scattering and diffraction capabilities and narrow millimeter wave beams. The effect of achieving good vortex wave characteristics

Active Publication Date: 2021-05-11
ANHUI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Compared with the decimeter wave band of 4G, its frequency is higher and its wavelength is shorter, but its scattering and diffraction capabilities are poor. Therefore, millimeter wave communication is closer to optical communication, mainly relying on direct line of sight for transmission, and millimeter wave beams Narrow, with good directionality, but will be reflected or blocked when encountering obstacles

Method used

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  • A Broadband Millimeter Wave Dual Circular Polarization Dual Mode Orbital Angular Momentum Antenna
  • A Broadband Millimeter Wave Dual Circular Polarization Dual Mode Orbital Angular Momentum Antenna
  • A Broadband Millimeter Wave Dual Circular Polarization Dual Mode Orbital Angular Momentum Antenna

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Embodiment 1

[0073] The radius R of the circular array composed of four antenna units 20 arranged in a circular array in the present invention is 7.2 mm, and the working center frequency is 31 GHz.

[0074] The overall size of the dielectric substrate 1 is 80 mm × 52.5 mm × 0.508 mm (length × width × thickness), and the material is Rogers (Rogers) 5880; the overall size of the supersurface layer top layer 2 is 37 mm × 42 mm × 0.508 mm, the material is It is Rogers5880; the overall size of the bottom layer 3 of the supersurface layer is 37mm×42mm×0.508mm, and the material is Rogers5880.

[0075] The dielectric substrate 1, the supersurface layer top layer 2 and the supersurface layer bottom layer 3 are fixed by plastic nylon screws.

[0076] It can be seen from the above technical scheme that the beneficial effects of the broadband millimeter wave dual circular polarization dual mode orbital angular momentum antenna of the present invention are:

[0077] First, the entire antenna of the pr...

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Abstract

The invention discloses a broadband millimeter wave dual circular polarization dual mode orbital angular momentum antenna. The broadband millimeter-wave dual-circular polarization dual-mode orbital angular momentum antenna includes four bidirectional radiation antenna units arranged in a circular array, and the two sides of each antenna unit are closely attached to the metasurface layer, and the feed ports of the four antenna units are The same amplitude and 90 degrees clockwise rotation. The entire antenna of the present invention is mainly made of metal layers and metallized through-hole technology, and the processing technology of the entire structure is relatively simple and easy to integrate; the antenna of the present invention has the characteristics of simultaneously radiating two kinds of circularly polarized waves and two kinds of orbital angular momentum modes , and exhibits good vortex wave characteristics over the entire broadband frequency.

Description

technical field [0001] The invention relates to the technical field of orbital angular momentum antennas, in particular to a broadband millimeter wave dual-circular polarization dual-mode orbital angular momentum antenna. Background technique [0002] In recent years, with the rapid development of wireless communication technology, the spectrum resource for information transmission has been approaching the Shannon limit, and the existing antenna technology has certain restrictions on the utilization of spectrum resources. In order to alleviate the contradiction between the shortage of spectrum resources and the increasing demand for wireless services, various radio technologies have emerged as the times require. In order to meet the ever-growing big data information exchange, there is an urgent need for an antenna technology that can improve system capacity and spectrum utilization efficiency, and utilize the orthogonality between different modal vortex electromagnetic waves...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/38H01Q5/50
CPCH01Q1/36H01Q1/38H01Q5/50
Inventor 黄志祥吴杰方明任信钢杨丽霞吴先良
Owner ANHUI UNIVERSITY
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