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Coplanar bowtie antenna of trapped wave reflector

A technology of notch reflection and bow-tie antenna, which is applied in the direction of antenna, radiation element structure, electrical components, etc., can solve the problems of inapplicability, low gain, etc., and achieve the effects of gain suppression, strong gain, and increased gain

Inactive Publication Date: 2014-12-24
SOUTHEAST UNIV
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  • Claims
  • Application Information

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Problems solved by technology

However, its gain is low, so it is not suitable for some occasions with high gain requirements

Method used

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  • Coplanar bowtie antenna of trapped wave reflector

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with drawings and embodiments.

[0017] The technical scheme adopted in the present invention is: the coplanar bow-tie antenna of the notch reflector includes two bow-tie radiation patches 1, feed transmission line 2, dielectric substrate 5 and notch reflector 6; bow-tie radiation patch 1, feed Both the transmission line 2 and the notch reflector 6 are on the dielectric substrate 5; the shape of the two bow-tie radiation patches 1 is triangular, and the two bow-tie radiation patches 1 are printed on the same surface of the dielectric substrate 5, and one bow-tie radiation patch and The conduction band 3 of the feeding transmission line is directly connected, and the other tie patch is connected to the ground 4 of the feeding transmission line on the other side of the dielectric substrate 5 at the end 10 of the feeding transmission line through a metallized grounding via; the notch reflector 6 is compos...

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Abstract

The invention relates to a coplanar bowtie antenna of a trapped wave reflector. The coplanar bowtie antenna comprises two bowtie radiation patches (1), a feed transmission line (2), a medium substrate (5) and a trapped wave reflector (6), wherein the bowtie radiation patches (1) are printed on the same side of the medium substrate and are connected with a conduction band (3) and a ground (4) of the feed transmission line at the transmission line end (10), the trapped wave reflector (6) is composed of two microstrip transmission lines (7) of an open circuit of a terminal, the transmission lines (7) are unequal in length, and conduction bands and grounds of the microstrip transmission lines (7) are connected with the conduction band (3) and the ground (4) of the feed transmission line respectively on a loading point (9) of the trapped wave reflector. The trapped wave reflector loaded in the antenna serves as a reflector within the working frequency band of the antenna, gain of the antenna can be improved, two trapped wave frequency bands lower than the working frequency band are used as a filter, and radiation of the antenna is suppressed.

Description

technical field [0001] The invention relates to an antenna, in particular to a coplanar bow-tie antenna with a notch reflector, and belongs to the technical field of antenna manufacturing. Background technique [0002] As an important front-end device in a wireless communication system, the antenna can not only radiate or receive useful radio frequency signals, but also radiate or receive indiscriminately for other useless or harmful signals falling within its working frequency band. In some cases, this situation will cause greater interference to the antenna transceiver system, such as image frequency signal interference in a superheterodyne receiver. Due to its high sensitivity and selectivity, the superheterodyne structure is widely used in modern communication systems and radar systems, so image frequency suppression measures are essential. A common solution is to insert an image filter in the radio frequency circuit to filter out the image frequency signal in the recei...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q15/14H01Q19/10
Inventor 赵洪新王磊殷晓星
Owner SOUTHEAST UNIV