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Progress In Electromagnetics Research
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DESIGN AND FABRICATION OF A SECTORAL BEAM SLOTTED ANTENNA IN SIW TECHNOLOGY FOR SURVEILLANCE APPLICATIONS AT MILLIMETER WAVES

By S. C. Pavone and M. Albani

Full Article PDF (615 KB)

Abstract:
In this paper, we present the design and fabrication of a sectoral beam slotted antenna in substrate integrated waveguide (SIW) technology able to achieve a high roll-off sectoral pattern in the horizontal plane and a very narrow beam in the vertical plane, as required in surveillance applications in the band 76-77 GHz. The proposed antenna is designed and fabricated in multi-layer PCB technology, which allows to integrate both the corporate feeding network and the radiating aperture in the same planar and lightweight device. To achieve a remarkable roll-off (> 5.5 dB/deg) and a reduced ripple (< 1.5 dB), the antenna has been designed by synthesizing a sinc-shaped (uniform) aperture distribution along x-direction (y-direction). The synthesis and optimization of so tapered aperture distributions is not easy to be found in the literature, especially for planar devices. A prototype of such an antenna has been fabricated with a horizontal half-power beamwidth (HPBW) of 30˚, by embedding both the feeding network and the radiating aperture in three stacked dielectric substrates. Measurements of the prototype show a fair agreement with numerical simulations.

Citation:
S. C. Pavone and M. Albani, "Design and Fabrication of a Sectoral Beam Slotted Antenna in SIW Technology for Surveillance Applications at Millimeter Waves," Progress In Electromagnetics Research, Vol. 167, 55-65, 2020.
doi:10.2528/PIER20012102
http://www.jpier.org/PIER/pier.php?paper=20012102

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