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Wide-beam antenna based on pin-like monopoles

A wide-beam antenna and monopole technology, which is applied in the direction of antenna, slot antenna, antenna grounding device, etc., can solve the problems of grating lobe, scanning side lobe level increase, phased array scanning beam gain reduction, etc., to achieve The effect of flattening the gain variation and widening the beam

Inactive Publication Date: 2021-04-20
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Beyond this angular range, the scanning beam gain of the phased array will decrease sharply, the scanning side lobe level will increase or even grating lobes will appear, and the beam resolution will continue to deteriorate

Method used

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  • Wide-beam antenna based on pin-like monopoles
  • Wide-beam antenna based on pin-like monopoles
  • Wide-beam antenna based on pin-like monopoles

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Embodiment Construction

[0025] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:

[0026] A wide-beam antenna based on a pin-like monopole, including two dielectric substrates, a rectangular microstrip patch etched with U-shaped slits, two sets of pin-shaped monopoles, and a metal floor; the center of the upper dielectric substrate is printed There is a rectangular microstrip patch with U-shaped slits etched on the patch. On both sides of the rectangular patch, there are three pin-shaped monopoles distributed at equal intervals. Below the monopole is a dielectric substrate for support; the metal floor is located on The lower surface of the upper dielectric substrate; the antenna is fed by a coaxial probe.

[0027] The pin-shaped monopole includes: an upper metal column and a lower cube. The bottom end of the metal column is inserted into the metal cube, and the overall shape is similar to the pin structure; the cube is placed on the lower diele...

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Abstract

The invention relates to a wide-beam antenna based on pin-like monopoles, and belongs to the technical field of antennas. The antenna comprises two layers of dielectric substrates, a rectangular microstrip patch etched with a U-shaped gap, two groups of pin-shaped monopoles and a metal floor; a rectangular micro-strip patch is printed in the center of the upper dielectric substrate, the U-shaped gap is etched in the patch, three pin-shaped monopoles distributed at equal intervals are arranged on each of the two sides of the rectangular patch, and the dielectric substrate used for supporting is arranged below the monopoles; the metal floor is located on the lower surface of the upper dielectric substrate; and the antenna feeds in a coaxial probe mode. Compared with a traditional microstrip antenna, the 3dB beam width of the E surface of the microstrip antenna designed by the invention is 170 DEG.

Description

technical field [0001] The invention belongs to the technical field of antennas and relates to a wide-beam antenna based on a pin-like monopole. The working frequency band is 5.06~5.33GHz, and the 3dB beamwidth of the E plane is 170°. Background technique [0002] In recent years, the phased array composed of microstrip antennas has overcome the shortcomings of traditional mechanical scanning array antennas, and has the advantages of fast scanning speed, high precision, low cost, light weight, low profile and easy integration, etc., and has become a phased array antenna. The mainstream of control array antenna design. [0003] Due to the influence of mutual coupling between array elements and the limitation of the scanning range of the microstrip unit itself, when the microstrip phased array antenna scans to a large angle, the active reflection coefficient increases, which will cause total reflection and cause scanning blind spots. The effective scanning range of the micro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/48H01Q1/50H01Q13/08H01Q13/10
Inventor 冀璐阳金娇李建瀛张麟兮
Owner NORTHWESTERN POLYTECHNICAL UNIV
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