Plane coplanar bowtie antenna of dual-band trapped wave antenna
A technology of notch reflection and bow-tie antenna, applied in the direction of antenna, radiating element structure, electrical components, etc., can solve the problems of low gain and inapplicability, and achieve the effect of gain suppression, increase gain, and filter interference
Inactive Publication Date: 2014-12-24
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 planar coplanar bow-tie antenna of the dual-frequency notch reflector comprises two bow-tie radiation patches 1, a feeder transmission line 2, a dielectric substrate 5 and a notch reflector 6; the bow-tie radiation patch 1 , the 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 the same surface of the dielectric substrate 5, and one bow-tie radiation patch 1 The patch is directly connected to the conduction band 3 of the feeding transmission line, 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 metall...
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The invention relates to a plane coplanar bowtie antenna of a dual-band trapped wave antenna. The plane 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 a left double-line open-circuit line (11) and a right double-line open-circuit line (12) of an open circuit of a terminal, the left double-line open-circuit line (11) and the right double-line open-circuit line (12) are unequal in length, and conduction bands and grounds of the left and right double-line open-circuit lines are connected with the conduction band (3) and the ground (4) of the feed transmission line on a loading point (9) of the trapped wave reflector respectively. 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 plane 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 frequ...
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IPC IPC(8): H01Q1/38H01Q15/14H01Q19/10
Inventor 赵洪新陈翘殷晓星
Owner SOUTHEAST UNIV