A Reconfigurable Beamsteering Antenna Array at 28 GHz Using a Corporate-Fed 3-Bit Phase Shifter

A 3-bit beam steerable antenna array based on a microstrip line is designed and implemented at 28 GHz for millimetre-wave application. The antenna consists of an 8-element tightly stacked aperture and a switchable feeding network. The latter consists of a one-to-eight-way uniform microstrip corporat...

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Main Authors: Md Nazim Uddin, Md Nurul Anwar Tarek, Md Khadimul Islam, Elias A. Alwan
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Open Journal of Antennas and Propagation
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10020187/
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author Md Nazim Uddin
Md Nurul Anwar Tarek
Md Khadimul Islam
Elias A. Alwan
author_facet Md Nazim Uddin
Md Nurul Anwar Tarek
Md Khadimul Islam
Elias A. Alwan
author_sort Md Nazim Uddin
collection DOAJ
description A 3-bit beam steerable antenna array based on a microstrip line is designed and implemented at 28 GHz for millimetre-wave application. The antenna consists of an 8-element tightly stacked aperture and a switchable feeding network. The latter consists of a one-to-eight-way uniform microstrip corporate-fed power divider and is separated from the radiating element by a ground plane. To achieve coupled feeding, the ground plane has two rows of slots under each antenna element. A switching mechanism was implemented on the microstrip line to realize 3-bit periodic phase shifting for beamsteering. By sampling 8 feed points with a separation distance of <inline-formula> <tex-math notation="LaTeX">$\lambda $ </tex-math></inline-formula>/8, a 3-bit phase shifter was constructed with phases of 0&#x00B0;, &#x2212;45&#x00B0;, &#x2212;90&#x00B0;, &#x2212;135&#x00B0;, &#x2212;180&#x00B0;, &#x2212;225&#x00B0;, &#x2212;270&#x00B0;, and &#x2212;315&#x00B0;. Continuous beamsteering was achieved from &#x2212;50&#x00B0; to50&#x00B0; by switching eight different sampling states, both in numerical calculation and in simulation. The design was verified by fabricating and testing three different prototype configurations at 28 GHz. The measured prototypes showed an excellent match with the simulation results. Notably, the maximum measured gain was found to be 13.44 dBi with a gain threshold of 10 dBi within the steering range (viz. 100&#x00B0;).
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spelling doaj.art-d846ea7a725f4a549951747cd0df15552023-02-07T00:00:59ZengIEEEIEEE Open Journal of Antennas and Propagation2637-64312023-01-01412614010.1109/OJAP.2023.323788210020187A Reconfigurable Beamsteering Antenna Array at 28 GHz Using a Corporate-Fed 3-Bit Phase ShifterMd Nazim Uddin0https://orcid.org/0000-0001-6406-4618Md Nurul Anwar Tarek1https://orcid.org/0000-0002-7105-0983Md Khadimul Islam2https://orcid.org/0000-0002-4035-9347Elias A. Alwan3https://orcid.org/0000-0002-6011-0207Department of Electrical and Computer Engineering, Florida International University, Miami, FL, USADepartment of Electrical and Computer Engineering, Florida International University, Miami, FL, USADepartment of Electrical and Computer Engineering, Florida International University, Miami, FL, USADepartment of Electrical and Computer Engineering, Florida International University, Miami, FL, USAA 3-bit beam steerable antenna array based on a microstrip line is designed and implemented at 28 GHz for millimetre-wave application. The antenna consists of an 8-element tightly stacked aperture and a switchable feeding network. The latter consists of a one-to-eight-way uniform microstrip corporate-fed power divider and is separated from the radiating element by a ground plane. To achieve coupled feeding, the ground plane has two rows of slots under each antenna element. A switching mechanism was implemented on the microstrip line to realize 3-bit periodic phase shifting for beamsteering. By sampling 8 feed points with a separation distance of <inline-formula> <tex-math notation="LaTeX">$\lambda $ </tex-math></inline-formula>/8, a 3-bit phase shifter was constructed with phases of 0&#x00B0;, &#x2212;45&#x00B0;, &#x2212;90&#x00B0;, &#x2212;135&#x00B0;, &#x2212;180&#x00B0;, &#x2212;225&#x00B0;, &#x2212;270&#x00B0;, and &#x2212;315&#x00B0;. Continuous beamsteering was achieved from &#x2212;50&#x00B0; to50&#x00B0; by switching eight different sampling states, both in numerical calculation and in simulation. The design was verified by fabricating and testing three different prototype configurations at 28 GHz. The measured prototypes showed an excellent match with the simulation results. Notably, the maximum measured gain was found to be 13.44 dBi with a gain threshold of 10 dBi within the steering range (viz. 100&#x00B0;).https://ieeexplore.ieee.org/document/10020187/Reconfigurablemillimeter-wave antennaaperture-fed antenna3-bit-phase shifterbeamsteering
spellingShingle Md Nazim Uddin
Md Nurul Anwar Tarek
Md Khadimul Islam
Elias A. Alwan
A Reconfigurable Beamsteering Antenna Array at 28 GHz Using a Corporate-Fed 3-Bit Phase Shifter
IEEE Open Journal of Antennas and Propagation
Reconfigurable
millimeter-wave antenna
aperture-fed antenna
3-bit-phase shifter
beamsteering
title A Reconfigurable Beamsteering Antenna Array at 28 GHz Using a Corporate-Fed 3-Bit Phase Shifter
title_full A Reconfigurable Beamsteering Antenna Array at 28 GHz Using a Corporate-Fed 3-Bit Phase Shifter
title_fullStr A Reconfigurable Beamsteering Antenna Array at 28 GHz Using a Corporate-Fed 3-Bit Phase Shifter
title_full_unstemmed A Reconfigurable Beamsteering Antenna Array at 28 GHz Using a Corporate-Fed 3-Bit Phase Shifter
title_short A Reconfigurable Beamsteering Antenna Array at 28 GHz Using a Corporate-Fed 3-Bit Phase Shifter
title_sort reconfigurable beamsteering antenna array at 28 ghz using a corporate fed 3 bit phase shifter
topic Reconfigurable
millimeter-wave antenna
aperture-fed antenna
3-bit-phase shifter
beamsteering
url https://ieeexplore.ieee.org/document/10020187/
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