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Semi-U-shaped ultra-wideband patch antenna

A patch antenna and ultra-wideband technology, which is applied in the field of half U-shaped ultra-wideband patch antennas, can solve the problems of narrow bandwidth and achieve the effects of increasing bandwidth, omnidirectionality, and stable radiation direction characteristics

Pending Publication Date: 2020-06-02
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The patch antenna has the characteristics of small size, light weight, low profile, and can conform to the carrier (such as an aircraft), but its size is generally 1 / 2 wavelength antenna, and the bandwidth is very narrow, generally 1% to 3%

Method used

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  • Semi-U-shaped ultra-wideband patch antenna
  • Semi-U-shaped ultra-wideband patch antenna
  • Semi-U-shaped ultra-wideband patch antenna

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Embodiment Construction

[0027] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0028] Such as Figure 1 to Figure 3 As shown, the half-U-shaped ultra-broadband patch antenna includes a grounded metal plate 1, a short-circuit piece 5 is arranged vertically on the grounded metal plate 1, a top patch 2 is arranged on the short-circuit piece 5, and the top patch 2 is parallel to the grounded metal plate 1 ; The top patch 2 is provided with a first notch 3, one end of the first notch 3 is connected to the ...

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Abstract

The invention discloses a semi-U-shaped ultra-wideband patch antenna, which comprises a grounding metal plate, wherein a short circuit piece is vertically arranged on the grounding metal plate, a toppatch is arranged on the short circuit piece, and the top patch is parallel to the grounding metal plate; the top patch is provided with a first notch, one end of the first notch is communicated witha second notch, the first notch and the second notch are perpendicular to each other to form a semi-U shape, the second notch extends to one side of the top patch to form an opening, and the edge of the second notch is provided with a first right-angle piece extending towards the grounding metal plate; a second right-angle piece is arranged at the end part of the first right-angle piece and is parallel to the grounding metal plate; and the second right-angle piece is connected with a feeder end. The patch antenna has an ultra-wideband, the radiation direction is omnidirectional, the radiationdirection characteristic of the antenna is kept stable in the whole bandwidth range, and the gain is relatively good.

Description

technical field [0001] The invention relates to the technical field of patch antennas, in particular to a half U-shaped ultra-wideband patch antenna Background technique [0002] The patch antenna has the characteristics of small size, light weight, low profile, and can conform to the carrier (such as an aircraft), but its size is generally 1 / 2 wavelength antenna, and the bandwidth is very narrow, generally 1% to 3%. Most of the domestic and foreign research on ultra-wideband patch antennas is 1 / 2 of the wavelength corresponding to the lowest frequency. However, with a size of 1 / 4 wavelength, the U-shaped antenna can only reach 30-40% of the wavelength. Contents of the invention [0003] Aiming at the above-mentioned shortcomings in the prior art, the present invention provides a semi-U-shaped ultra-wideband patch antenna with ultra-high bandwidth and omnidirectional radiation direction. [0004] In order to achieve the above-mentioned purpose of the invention, the techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/48H01Q1/50
CPCH01Q1/36H01Q1/48H01Q1/50
Inventor 史志玮
Owner SOUTHWEST JIAOTONG UNIV
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