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Bowtie antenna with notch reflector

A technology of notch reflection and bow-tie antennas, which is applied in the direction of antennas, radiating element structures, electrical components, etc., can solve the problems of low gain and inapplicability, 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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  • Bowtie antenna with 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 bowtie antenna of the notch reflector includes two bowtie radiation patches 1, feeding transmission line 2, dielectric substrate 5 and notch reflector 6; bowtie radiation patch 1, feeding transmission line 2 and the notch reflector 6 are all on the dielectric substrate 5; the shape of the two bow-tie radiation patches 1 is a triangle, and the two bow-tie radiation patches 1 are printed on both sides of the dielectric substrate 5 in an antipodal shape, respectively connected to the feeder transmission line The conduction band 3 and the ground 4 are connected at the end 10 of the feeding transmission line; the notch reflector 6 is composed of two sections of open-ended microstrip transmission lines 7, and the conduction band and ground of the microstrip transmission line 7 are printed on both sides of ...

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Abstract

The invention relates to a bowtie antenna with a notch reflector. The bowtie antenna with the notch reflector is composed of two bowtie radiation patches (1), a feed transmission line (2), a dielectric substrate (5) and the notch reflector (6), wherein the two bowtie radiation patches are printed on the two sides of the dielectric substrate (5) in an antipodal shape, and each bowtie radiation patch is connected with the conduction band (3) and the ground (4) of the feed transmission line at the tail end (10) of the feed transmission line. The notch reflector (6) is composed of two open-ended micro-strip transmission lines (7) which are identical in length. The conduction band and the ground of the each micro-strip transmission line are connected with the conduction band (3) and the ground (4) of the feed transmission line respectively at a loading point (9) of the notch reflector respectively. The notch reflector loaded by the bowtie antenna can be used as a reflector within the working frequency band of the antenna to increase the antenna gain, and meanwhile the notch reflector can be used as a filter within the notch frequency band lower than the working frequency band to restrain radiation of the antenna.

Description

technical field [0001] The invention relates to an antenna, in particular to a bow-tie antenna of 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 received signal....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q15/14H01Q19/10
Inventor 殷晓星赵洪新
Owner SOUTHEAST UNIV