Shorted Trapezoidal SIW Antenna With Quasi-Hemispherical Pattern for 2D Wide Scanning Planar Phased Array Antenna

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This communication presents a shorted trapezoidal substrate integrated waveguide (SIW) antenna with a quasi-hemispherical pattern composed of a 64-element (8 x 8) 2-D planar phased array. The proposed low-profile SIW antenna is analyzed in terms of resonating mode and magnetic current and is simulated. The proposed antenna is composed of a trapezoidal patch and shorting vias. The upper side of the trapezoid is the shorting wall. and the middle of the bottom side provides shorting with a via. The resonance produced by the structure causes the magnetic currents to have three different directions. Hence, the single element has a quasi-hemispherical beam pattern on a large ground. The 64-element (8 x 8) 2-D planar phased array was implemented and measured. Because the constituent elements have a quasi-hemispherical pattern, the phased array antenna has a wide scan g range in all azimuth directions. The measured scanning range with 5 dB gain fluctuation in the phi = 0 degrees plane, phi = 45 degrees plane, and phi = 90 degrees plane are 170 degrees , 143 degrees , and 168 degrees, respectively.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2022-08
Language
English
Article Type
Article
Citation

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, v.70, no.8, pp.7211 - 7216

ISSN
0018-926X
DOI
10.1109/TAP.2022.3161329
URI
http://hdl.handle.net/10203/298708
Appears in Collection
EE-Journal Papers(저널논문)
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