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Coplane bow tie antenna with double-frequency notch 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, gain improvement, and compact size

Inactive Publication Date: 2015-01-07
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • 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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  • Coplane bow tie antenna with double-frequency notch 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 solution adopted in the present invention is: the coplanar bow-tie antenna of the dual-frequency notch reflector includes two bow-tie radiation patches 1, a feeding transmission line 2, a dielectric substrate 5 and a notch reflector 6; the bow-tie radiation patch 1, Both the feeding 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 1 One piece is directly connected to the conduction band 3 of the feed transmission line, and the other tie patch is connected to the ground 4 of the feed transmission line on the other side of the dielectric substrate 5 at the end 10 of the feed transmission line through a metallized ground via ...

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Abstract

The invention relates to a coplane bow tie antenna with a double-frequency notch reflector. The antenna is composed of bow tie radiation patches (1), a feed transmission line (2), a dielectric substrate (5) and the notch reflector (6). The two bow tie radiation patches (1) are printed on the same face of the dielectric substrate (5) and are connected with a conduction band (3) and a ground part (4) of the feed transmission line at a transmission line tail end (10). The notch reflector (6) is formed by a left micro-strip open-circuit line (11) and a right micro-strip open-circuit line (12) of a terminal open circuit, the left micro-strip open-circuit line (11) and the right micro-strip open-circuit line (12) are different in length, and conduction bands and ground parts of the left micro-strip open-circuit line (11) and the right micro-strip open-circuit line (12) are connected with the conduction band (3) and the ground part (4) of the feed transmission line respectively at a loading point (9) of the notch reflector. The notch reflector loaded on the antenna can serve as the reflector in the working frequency band of the antenna to improve the gain of the antenna and meanwhile can serve as a filter in the two notch frequency bands lower than the working frequency band to suppress the radiation of the antenna.

Description

technical field [0001] The invention relates to an antenna, in particular to a coplanar bow-tie antenna with a dual-frequency 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 sign...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q15/14H01Q19/10
Inventor 赵洪新谢力殷晓星
Owner SOUTHEAST UNIV