Experimental Evaluation of a Millimeter-wave Fully-Connected Hybrid Beamformer with a Large Antenna Array

Tian Hong Loh; David Cheadle; Sohail Payami; Mohsen Khalily; Konstantinos Nikitopoulos; Rahim Tafazolli

doi:10.23919/EuCAP51087.2021.9411038

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Experimental Evaluation of a Millimeter-wave Fully-Connected Hybrid Beamformer with a Large Antenna Array

Tian Hong Loh, David Cheadle, Sohail Payami, Mohsen Khalily, Konstantinos Nikitopoulos and Rahim Tafazolli

2021 15TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP)

Proceedings of the European Conference on Antennas and Propagation

01/01/2021

DOI: https://doi.org/10.23919/EuCAP51087.2021.9411038

Abstract

Engineering, Electrical & Electronic

Science & Technology

Engineering

Technology

Telecommunications

Current trends in developing cost-effective and energy-efficient wireless systems operating at millimeter-wave (mm-wave) frequencies and with large-scale phased array antennas for fulfilling the high data-rate demands of 5G and beyond has driven the needs to explore the use of hybrid beamforming technologies. This paper presents an experimental study of a wide-bandwidth millimeter-wave fully-connected hybrid beamformer system that operates at 26 GHz with 128 antenna elements arranged in a 16 x 8 planar array, 6-bit phase shifter, 6-bit attenuators and two separate radio frequency (RF) channels each capable of fully independent beamforming. The linearity, phase, and attenuation performance of the beamformer system between 25.5 GHz and 26.5 GHz are evaluated as well as the beamforming performance of a 128-element planar phased array at 26 GHz where the measured radiation patterns with and without amplitude tapering are compared.

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Title: Experimental Evaluation of a Millimeter-wave Fully-Connected Hybrid Beamformer with a Large Antenna Array
Creators: Tian Hong Loh - ElectroChem
David Cheadle - ElectroChem
Sohail Payami - University of Surrey, School of Computer Science and Electronic Engineering
Mohsen Khalily - University of Surrey, School of Computer Science and Electronic Engineering
Konstantinos Nikitopoulos - University of Surrey, School of Computer Science and Electronic Engineering
Rahim Tafazolli - University of Surrey, School of Computer Science and Electronic Engineering
Publication Details: 2021 15TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP)
Series: Proceedings of the European Conference on Antennas and Propagation
Publisher: IEEE
Number of pages: 4
Publication Date: 01/01/2021
Grant note: NPL National Measurement System Programme of the U.K. Government's Department for Business, Energy and Industrial Strategy The work of T. H. Loh and D. Cheadle was supported by the 2017–2020 National Measurement System Programme of the U.K. Government’s Department for Business, Energy and Industrial Strategy, through the Science Theme Reference EMT20 of that Programme. The work of Sohail Payami was supported by NPL, through the NPL-Surrey 2017–2020 Collaboration Programme.
Identifiers: 99778709302346; WOS:000672699800150
Copyright: This paper's copyright is held by the author(s). It is published in these proceedings and included in any archive such as IEEE Xplore under the license granted by the "Agreement Granting EurAAP Rights Related to Publication of Scholarly Work".
Academic Unit: School of Computer Science and Electronic Engineering
Language: English
Resource Type: Conference proceeding
SDG (Scopus 2023): SDG 7

Experimental Evaluation of a Millimeter-wave Fully-Connected Hybrid Beamformer with a Large Antenna Array

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