Wideband Circularly Polarized Magneto-Electric Dipole Antenna Array with Metallic Walls for Millimeter-Wave Applications

This work proposes a new circularly polarized (CP) 4 × 4 magneto-electric (ME) dipole antenna array using metallic walls for 28 GHz band applications. The ME dipole element is surrounded by eight metallic walls and is excited fed by microstrip line. By introducing metallic walls, the 3-dB axial rati...

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Main Authors: Binlong Shi, Xiaowei Cao, Changjiang Deng
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/12/10/2154
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author Binlong Shi
Xiaowei Cao
Changjiang Deng
author_facet Binlong Shi
Xiaowei Cao
Changjiang Deng
author_sort Binlong Shi
collection DOAJ
description This work proposes a new circularly polarized (CP) 4 × 4 magneto-electric (ME) dipole antenna array using metallic walls for 28 GHz band applications. The ME dipole element is surrounded by eight metallic walls and is excited fed by microstrip line. By introducing metallic walls, the 3-dB axial ratio (AR) bandwidth of the element is increased from 23% to 36.5%. The 4 × 4 array is fed by a simple 1-to-16 microstrip power divider. In contrast to the conventional substrate integrated waveguide (SIW) power divider using two layers, the proposed microstrip divider only needs one substrate layer. The experimental 3-dB AR bandwidth of the array achieves 30.1%, ranging from 22.5 to 30.5 GHz, which falls inside the −10 dB impendence bandwidth. The measured maximum gain is 19.2 dBic.
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spelling doaj.art-770149b37d7048e48d5d04ee1a2f43e12023-12-01T01:31:51ZengMDPI AGElectronics2079-92922023-05-011210215410.3390/electronics12102154Wideband Circularly Polarized Magneto-Electric Dipole Antenna Array with Metallic Walls for Millimeter-Wave ApplicationsBinlong Shi0Xiaowei Cao1Changjiang Deng2Beijing Key Laboratory of Millimeter Wave and Terahertz Technology, School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing 100081, ChinaBeijing Key Laboratory of Millimeter Wave and Terahertz Technology, School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing 100081, ChinaBeijing Key Laboratory of Millimeter Wave and Terahertz Technology, School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing 100081, ChinaThis work proposes a new circularly polarized (CP) 4 × 4 magneto-electric (ME) dipole antenna array using metallic walls for 28 GHz band applications. The ME dipole element is surrounded by eight metallic walls and is excited fed by microstrip line. By introducing metallic walls, the 3-dB axial ratio (AR) bandwidth of the element is increased from 23% to 36.5%. The 4 × 4 array is fed by a simple 1-to-16 microstrip power divider. In contrast to the conventional substrate integrated waveguide (SIW) power divider using two layers, the proposed microstrip divider only needs one substrate layer. The experimental 3-dB AR bandwidth of the array achieves 30.1%, ranging from 22.5 to 30.5 GHz, which falls inside the −10 dB impendence bandwidth. The measured maximum gain is 19.2 dBic.https://www.mdpi.com/2079-9292/12/10/2154millimeter wavecircular polarizationmagneto-electric dipolewideband arraymicrostrip feeding network
spellingShingle Binlong Shi
Xiaowei Cao
Changjiang Deng
Wideband Circularly Polarized Magneto-Electric Dipole Antenna Array with Metallic Walls for Millimeter-Wave Applications
Electronics
millimeter wave
circular polarization
magneto-electric dipole
wideband array
microstrip feeding network
title Wideband Circularly Polarized Magneto-Electric Dipole Antenna Array with Metallic Walls for Millimeter-Wave Applications
title_full Wideband Circularly Polarized Magneto-Electric Dipole Antenna Array with Metallic Walls for Millimeter-Wave Applications
title_fullStr Wideband Circularly Polarized Magneto-Electric Dipole Antenna Array with Metallic Walls for Millimeter-Wave Applications
title_full_unstemmed Wideband Circularly Polarized Magneto-Electric Dipole Antenna Array with Metallic Walls for Millimeter-Wave Applications
title_short Wideband Circularly Polarized Magneto-Electric Dipole Antenna Array with Metallic Walls for Millimeter-Wave Applications
title_sort wideband circularly polarized magneto electric dipole antenna array with metallic walls for millimeter wave applications
topic millimeter wave
circular polarization
magneto-electric dipole
wideband array
microstrip feeding network
url https://www.mdpi.com/2079-9292/12/10/2154
work_keys_str_mv AT binlongshi widebandcircularlypolarizedmagnetoelectricdipoleantennaarraywithmetallicwallsformillimeterwaveapplications
AT xiaoweicao widebandcircularlypolarizedmagnetoelectricdipoleantennaarraywithmetallicwallsformillimeterwaveapplications
AT changjiangdeng widebandcircularlypolarizedmagnetoelectricdipoleantennaarraywithmetallicwallsformillimeterwaveapplications