Novel Beam Scan Method of Fabry–Perot Cavity (FPC) Antennas

A new beam scanning method of a Fabry–Perot cavity (FPC) antenna is proposed. To obtain high gain in a target direction with a reduced sidelobe level (SLL), we devised a tapered partially reflective surface (PRS) as a superstrate. Moreover, to attain various beam scanning directions, a phase-control...

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Autores principales:	Wook Jang, Yeong-geun Jeon, Han-jun Maeng, Jongyeong Kim, Dongho Kim
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Fabry–Perot cavity (FPC) antenna artificial magnetic conductor (AMC) partially reflective surface (PRS) beamforming high gain beam scanning Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/1419df4d3dee4ef79a639acb9eb663e0
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spelling	oai:doaj.org-article:1419df4d3dee4ef79a639acb9eb663e02021-11-25T16:42:49ZNovel Beam Scan Method of Fabry–Perot Cavity (FPC) Antennas10.3390/app1122110052076-3417https://doaj.org/article/1419df4d3dee4ef79a639acb9eb663e02021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/11005https://doaj.org/toc/2076-3417A new beam scanning method of a Fabry–Perot cavity (FPC) antenna is proposed. To obtain high gain in a target direction with a reduced sidelobe level (SLL), we devised a tapered partially reflective surface (PRS) as a superstrate. Moreover, to attain various beam scanning directions, a phase-controllable artificial magnetic conductor (AMC) ground plane with a broad reflection phase range and high reflection magnitudes was introduced. In the proposed method, a new formula to satisfy an FP resonance condition in a cavity for a scanned beam is also suggested. According to the formula, the FPC antenna can precisely scan the main beam in designed target directions with well-maintained high gain, which has been hardly achievable. In addition, our method demonstrates the potential of electrical beam-scanning antennas by employing active RF chips on the AMC cells. To validate the method, we fabricated a prototype FPC antenna for a scanned beam at <i>θ</i> = 30°. Furthermore, we conducted an additional simulation for a different beam scanning angle as well. Good agreement between the expected and experimental results verifies our design approach.Wook JangYeong-geun JeonHan-jun MaengJongyeong KimDongho KimMDPI AGarticleFabry–Perot cavity (FPC) antennaartificial magnetic conductor (AMC)partially reflective surface (PRS)beamforminghigh gainbeam scanningTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 11005, p 11005 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Fabry–Perot cavity (FPC) antenna artificial magnetic conductor (AMC) partially reflective surface (PRS) beamforming high gain beam scanning Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	Fabry–Perot cavity (FPC) antenna artificial magnetic conductor (AMC) partially reflective surface (PRS) beamforming high gain beam scanning Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Wook Jang Yeong-geun Jeon Han-jun Maeng Jongyeong Kim Dongho Kim Novel Beam Scan Method of Fabry–Perot Cavity (FPC) Antennas
description	A new beam scanning method of a Fabry–Perot cavity (FPC) antenna is proposed. To obtain high gain in a target direction with a reduced sidelobe level (SLL), we devised a tapered partially reflective surface (PRS) as a superstrate. Moreover, to attain various beam scanning directions, a phase-controllable artificial magnetic conductor (AMC) ground plane with a broad reflection phase range and high reflection magnitudes was introduced. In the proposed method, a new formula to satisfy an FP resonance condition in a cavity for a scanned beam is also suggested. According to the formula, the FPC antenna can precisely scan the main beam in designed target directions with well-maintained high gain, which has been hardly achievable. In addition, our method demonstrates the potential of electrical beam-scanning antennas by employing active RF chips on the AMC cells. To validate the method, we fabricated a prototype FPC antenna for a scanned beam at <i>θ</i> = 30°. Furthermore, we conducted an additional simulation for a different beam scanning angle as well. Good agreement between the expected and experimental results verifies our design approach.
format	article
author	Wook Jang Yeong-geun Jeon Han-jun Maeng Jongyeong Kim Dongho Kim
author_facet	Wook Jang Yeong-geun Jeon Han-jun Maeng Jongyeong Kim Dongho Kim
author_sort	Wook Jang
title	Novel Beam Scan Method of Fabry–Perot Cavity (FPC) Antennas
title_short	Novel Beam Scan Method of Fabry–Perot Cavity (FPC) Antennas
title_full	Novel Beam Scan Method of Fabry–Perot Cavity (FPC) Antennas
title_fullStr	Novel Beam Scan Method of Fabry–Perot Cavity (FPC) Antennas
title_full_unstemmed	Novel Beam Scan Method of Fabry–Perot Cavity (FPC) Antennas
title_sort	novel beam scan method of fabry–perot cavity (fpc) antennas
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/1419df4d3dee4ef79a639acb9eb663e0
work_keys_str_mv	AT wookjang novelbeamscanmethodoffabryperotcavityfpcantennas AT yeonggeunjeon novelbeamscanmethodoffabryperotcavityfpcantennas AT hanjunmaeng novelbeamscanmethodoffabryperotcavityfpcantennas AT jongyeongkim novelbeamscanmethodoffabryperotcavityfpcantennas AT donghokim novelbeamscanmethodoffabryperotcavityfpcantennas
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Novel Beam Scan Method of Fabry–Perot Cavity (FPC) Antennas

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