Broadband bowtie antenna with 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 low gain and inapplicability, and achieve the effects of strong gain, gain suppression, and interference filtering
Inactive Publication Date: 2015-01-07
SOUTHEAST UNIV
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[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 wide 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 transmission line 2 and notch reflector 6 are both 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 both sides of the dielectric substrate 5 in antipodal shape, and are respectively connected to the feeder The conduction band 3 of the transmission line and the ground 4 of the feed transmission line are connected at the end 10 of the feed transmission line; the notch reflector 6 is composed of two sections of equal length, open-ended left microstrip open line 11 and right microstrip open line 12 The microstrip tran...
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The invention relates to a broadband bowtie antenna with a notch reflector. The broadband 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 a left open-ended micro-strip open-circuit line (11) and a right open-ended micro-strip open-circuit line (12), wherein the left micro-strip open-circuit line (11) and the right micro-strip open-circuit line (12) are identical in length. The conduction band and the ground of the left micro-strip open-circuit line are connected with the conduction band (3) and the ground (4) of the feed transmission line respectively at a first loading point (9) of the notch reflector, and the conduction band and the ground of the right micro-strip open-circuit line are connected with the conduction band (3) and the ground (4) of the feed transmission line respectively at a second loading point (13) of the notch reflector. The notch reflector of the antenna can increase the antenna gain within the working frequency band of the antenna, 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 wide 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 si...
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IPC IPC(8): H01Q1/38H01Q15/14H01Q19/10
Inventor 殷晓星赵洪新
Owner SOUTHEAST UNIV