Design and fabrication of two-port three-beam switched beam antenna array for 60 GHz communication

• Published in: IET microwaves, antennas & propagation Vol. 13; no. 9; pp. 1438 - 1442
• Main Authors: Liu, Yuqiao, Bshara, Oday, Tekin, Ibrahim, Israel, Christopher, Hoorfar, Ahmad, Taskin, Baris, Dandekar, Kapil R
• Format: Journal Article
• Language: English
• Published: The Institution of Engineering and Technology 24.07.2019
• Subjects: 10 element series‐fed array; antenna feeds; antenna radiation patterns; antenna system; array signal processing; beam antenna array; beam‐switchable antenna array system; Chebyshev‐tapered microstrip antenna arrays; designed antenna array; frequency 60.0 GHz; microstrip antenna arrays; noise figure 5.0 dB; Research Article; switchable beams; transceivers; two‐port three‐beam switched beam antenna array; beam antenna array; Chebyshev-tapered microstrip antenna arrays; beam-switchable antenna array system; 10 element series-fed array; designed antenna array; microstrip antenna arrays; switchable beams; antenna radiation patterns; transceivers; antenna system; antenna feeds; two-port three-beam switched beam antenna array; frequency 60.0 GHz; noise figure 5.0 dB; array signal processing
• ISSN: 1751-8725; 1751-8733
• DOI: 10.1049/iet-map.2018.6010

This article presents a novel, low-cost, beam-switchable $2 \times 10$2×10 antenna array system operating at 60 GHz. This antenna system is constructed of two rows of Chebyshev-tapered microstrip antenna arrays. Each row is a 10 element series-fed array which are fed by a $90^ \circ $90∘ coupler. The designed antenna array has only two input ports, but it is capable of generating three switchable beams. This antenna system can spatially scan $90^ \circ $90∘ with at least −5 dB normalised gain using only one SPDT switch and a single transceiver. The maximum gain realised by the system was measured as 16.4 dBi and the bandwidth (BW) was >1 GHz. The features of the proposed antenna system make it applicable to do mmWave research such as beamforming algorithms and channel sounding, and to use in handsets for 5G communication.