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A Periodically Impedance Modulated Surface with Rectangular Beamforming on Arbitrary Elevation Surface

A beamforming and pitching surface technology, applied in the field of antennas, periodic impedance modulation surfaces, and periodic impedance modulation surfaces, can solve the problems of large size/volume, difficult to implement, etc., and achieve the effect of easy implementation and simple structure

Active Publication Date: 2022-05-03
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the above-mentioned existing technologies combine the optimization algorithm to adjust the amplitude and phase of the array to realize beamforming, but multi-feed sources are generally used, so a complex feed network is required, the size / volume is large and difficult to implement, and the existing technology Only the rectangular beamforming in the normal direction is realized, and the rectangular beamforming cannot be realized on any elevation plane

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  • A Periodically Impedance Modulated Surface with Rectangular Beamforming on Arbitrary Elevation Surface
  • A Periodically Impedance Modulated Surface with Rectangular Beamforming on Arbitrary Elevation Surface
  • A Periodically Impedance Modulated Surface with Rectangular Beamforming on Arbitrary Elevation Surface

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Embodiment Construction

[0063] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0064] This embodiment provides a periodic impedance modulation surface with rectangular beamforming on any elevation plane. The top view and side view of its overall structure are as follows figure 1 As shown, the detail picture near the center part is shown as figure 2 As shown, it includes a corner-cut rectangular metal patch unit 1, a dielectric substrate 2, a metal ground plate 3 and a monopole feed 4; the corner-cut rectangular metal patch unit 1 is located on the upper surface of the dielectric substrate 2, and the metal ground plate 3 is located on the the lower surface of the dielectric substrate 2;

[0065] The overall shape of the periodic impedance modulation surface is circular, and the radius corresponds to 5 times the free space wavelength corresponding to the center frequency of 30GHz. The periodic impedance modulation surface is divid...

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Abstract

The invention discloses a periodic impedance modulation surface formed by a rectangular beam of an arbitrary elevation plane, and belongs to the technical field of antennas and periodic impedance modulation surfaces. The periodic impedance modulation surface of the present invention applies the periodic impedance modulation surface to rectangular beamforming. Compared with the existing technology of combining array synthesis and algorithms, it does not need to use multiple feed sources and complex feed networks. It is necessary to extend the inner core of the coaxial line to form a monopole for feeding, which has a simple structure and is easy to implement. Another advantage of the present invention is that compared with the existing methods, the rectangular beamforming can be realized in the normal direction, and the rectangular beamforming can be realized in the direction with a certain inclination angle.

Description

technical field [0001] The invention belongs to the technical field of antennas and periodic impedance modulation surfaces, and in particular relates to a periodic impedance modulation surface with rectangular beam forming on an arbitrary elevation plane. Background technique [0002] As the terminal of the wireless communication system, the antenna plays an extremely important role in mobile communication. The gain lobe of the electromagnetic wave emitted by the traditional base station antenna is generally spherical, and the lobe width is relatively wide, and the gain drops on both sides of the main radiation direction relatively gently, which causes the electromagnetic wave signals emitted by antennas with different directions to interfere with each other. Rectangular beamforming technology with a certain roll-off rate puts forward the requirement to eliminate or reduce the mutual interference of signals in the multi-beam multiplexing area. [0003] The document "Flat-To...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/48G06F30/20
CPCH01Q1/38H01Q1/48G06F30/20
Inventor 李家林汪宗林赵青
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA