Design and Performance Analysis of Millimetre-Wave Rotman Lens-Based Array Beamforming Networks for Large-Scale Antenna Subsystems

Ardavan Rahimian; Yasir Alfadhl; Akram Alomainy

doi:10.2528/PIERC17071703

Design and Performance Analysis of Millimetre-Wave Rotman Lens-Based Array Beamforming Networks for Large-Scale Antenna Subsystems

Ardavan Rahimian, Yasir Alfadhl, Akram Alomainy

School of Engineering

Research output: Contribution to journal › Article

1 Citation (Scopus)

3 Downloads (Pure)

Abstract

This paper presents the comprehensive analytical design and numerical performance evaluation of novel millimetre-wave (mm-wave) switched-beam networks, based on the Rotman lens (RL) array feeding concept. These passive array devices have been designed for operation in the 28-GHz frequency band, covering the whole 18-38 GHz frequency range. The primary objective of the work is to conduct a thorough feasibility study of designing wideband mm-wave beamformers based on liquid-crystal polymer (LCP) substrates, to be potentially employed as low-cost and high-performance subsystems for the advanced transceiver units and large-scale antennas. The presented RLs exhibit significant output behaviours for electronic beam steering, in terms of the scattering (S) parameters, phase characteristics, and surface current distributions, as the feeding systems' primary functionality indicators.

Original language	English
Pages (from-to)	159-171
Journal	Progress In Electromagnetics Research C
Volume	78
DOIs	https://doi.org/10.2528/PIERC17071703
Publication status	Published - 11 Oct 2017

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10.2528/PIERC17071703

14.17071703Final published version, 4.49 MB

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Rahimian, A., Alfadhl, Y., & Alomainy, A. (2017). Design and Performance Analysis of Millimetre-Wave Rotman Lens-Based Array Beamforming Networks for Large-Scale Antenna Subsystems. Progress In Electromagnetics Research C, 78, 159-171. https://doi.org/10.2528/PIERC17071703

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abstract = "This paper presents the comprehensive analytical design and numerical performance evaluation of novel millimetre-wave (mm-wave) switched-beam networks, based on the Rotman lens (RL) array feeding concept. These passive array devices have been designed for operation in the 28-GHz frequency band, covering the whole 18-38 GHz frequency range. The primary objective of the work is to conduct a thorough feasibility study of designing wideband mm-wave beamformers based on liquid-crystal polymer (LCP) substrates, to be potentially employed as low-cost and high-performance subsystems for the advanced transceiver units and large-scale antennas. The presented RLs exhibit significant output behaviours for electronic beam steering, in terms of the scattering (S) parameters, phase characteristics, and surface current distributions, as the feeding systems' primary functionality indicators.",

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