Vol. 117

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2022-01-07

Millimeter Wave Switched Beam Rectangular Loop Dipole Antenna Array Using a 4×4 Butler Matrix

By Bharath Kunooru, Srujana Vahini Nandigama, Rama Krishna Dasari, Mahesh Pandurang Abegaonkar, and Vijay M. Pandharipande
Progress In Electromagnetics Research C, Vol. 117, 251-260, 2021
doi:10.2528/PIERC21103003

Abstract

A four-stage switched beam antenna array at millimeter-wave (mm-wave) frequencies is designed, fabricated, and experimental results are demonstrated. A novel rectangular loop dipole antenna (RLDA) applying the quasi Yagi-Uda concept is designed to achieve high gain and wide bandwidth with end-fire radiation. This RLDA with director has a return loss better than 10 dB over a frequency range of 32 GHz to 37 GHz and a peak gain of 8.5 dB. The proposed high gain end-fire RLDA antenna in combination with a 4x4 Butler Matrix(BM) creates the switched beam configuration and generates four beams in the directions of 15˚±2˚, -45˚±4˚, 38˚±2˚, and -15˚±1˚ at 33.5 GHz, 34.5 GHz, and 35.5 GHz with successive input port excitation. The switched beam configuration has overall dimensions at 34.5 GHz is 26 mm x 25.8 mm (3.03λ x 3.0λ).

Citation


Bharath Kunooru, Srujana Vahini Nandigama, Rama Krishna Dasari, Mahesh Pandurang Abegaonkar, and Vijay M. Pandharipande, "Millimeter Wave Switched Beam Rectangular Loop Dipole Antenna Array Using a 4×4 Butler Matrix," Progress In Electromagnetics Research C, Vol. 117, 251-260, 2021.
doi:10.2528/PIERC21103003
http://jpier.org/PIERC/pier.php?paper=21103003

References