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Low-minor-lobe ridge substrate integrated waveguide slot array antenna

A technology of slot array antenna and integrated waveguide, which is applied in the direction of slot antenna, antenna, antenna array, etc., can solve the problems of narrow antenna bandwidth and high sidelobe level of ridge substrate integrated waveguide slot array, and achieve the effect of bandwidth improvement

Inactive Publication Date: 2017-01-04
XIDIAN UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to provide a low sidelobe ridge substrate integrated waveguide slot array antenna, aiming to solve the problems of the existing substrate integrated waveguide slot array antenna with narrow bandwidth and high side lobe level of the ridge substrate integrated waveguide slot array

Method used

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  • Low-minor-lobe ridge substrate integrated waveguide slot array antenna
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  • Low-minor-lobe ridge substrate integrated waveguide slot array antenna

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0033] The structure of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] Such as figure 1 As shown, the low side lobe ridge substrate integrated waveguide slot array antenna provided by the embodiment of the present invention includes: microstrip line 1, microstrip line balun 2, first dielectric plate 3, second dielectric plate 4, ridge metal strip 5 , metal via 6, ridge metal via 7, short circuit end 8, gap 9.

[0035] Two rows of metal vias 6 and metal copper strips constitute the ridge of the RSIW. The upper and lower surfaces of the RSIW are metal copper p...

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Abstract

The invention relates to a low-minor-lobe ridge substrate integrated waveguide slot array antenna. The low-minor-lobe ridge substrate integrated waveguide slot array antenna comprises a micro-strip line, a micro-strip line Balun, a first medium plate, a second medium plate, a ridge metal strip, metal through holes, ridge metal through holes, a short-circuit end and slots; a radiation body is formed by the first medium plate, the second medium plate, the ridge metal strip, the metal through holes, the ridge metal through holes, the short-circuit end and the slots; a feed network of the antenna is formed by the micro-strip line and the micro-strip line Balun. According to the antenna provided by the invention, the impedance bandwidth (VSWR is smaller than 2) is 8.92GHz to 9.63GHz and the relative bandwidth is 7.8 percent and is much higher than the relative bandwidth being about 4 percent of a substrate integrated waveguide slot array antenna; the gain of the antenna in the frequency band is about 10.3dB; a minor lobe electrical level in the frequency band is smaller than -25dB; influences of main wave beam external clutter signals are reduced and an anti-interference capability of a whole system can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a low side lobe ridge substrate integrated waveguide slot array antenna. Background technique [0002] At present, the substrate integrated waveguide (SIW) is a rectangular waveguide-like structure formed by upper and lower metal surfaces and two rows of metallized through holes. It has the advantages of small size, light weight, low cost, and easy integration with other planar circuits. It can also overcome the transmission loss problem of traditional planar transmission lines such as microstrip and coplanar waveguide in the high frequency band of electromagnetic waves, and has become a hot research in recent years. direction. The SIW wide-wall longitudinal slot array antenna is widely used in radar communication systems due to its advantages of high gain, high efficiency, low cross-polarization and precise beamforming. However, since the bandwidth of SIW single-m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q13/08H01Q13/10H01Q21/00
CPCH01Q1/38H01Q13/08H01Q13/10H01Q21/00
Inventor 雷娟潘炜陈曦樊芳芳傅光
Owner XIDIAN UNIV
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