High Gain and Low Gain Roll-Off Mechanically Beam-Steerable Transmitarray Antennas

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Abstract

This paper introduces the concept of offset unifocal phase symmetry the achieve mechanically beamsteerable transmitarray (TA) antennas with high gain and low gain roll-off. The proposed offset unifocal phase symmetry operations can compromise phase error, electric-field spillover and illumination efficiencies to maintain the gains of scanning beams and minimize the gain roll-off. It has been demonstrated that the mechanically beam-steerable TA antenna enabled by the offset unifocal phase symmetry can maintain the realized gains of scanning beams, suppress sidelobe levels, and reduce gain roll-off within the beam-steerable coverage compared with the counterparts of unifocal and bifocal mechanically beamsteerable TA antennas. The proposed offset unifocal phase symmetry operations, in principle, is a generalized approach and applicable to reflectarray antennas to improve beamsteerable performance as well.
OriginalsprogEngelsk
Titel2024 International Symposium on Antennas and Propagation (ISAP)
Antal sider2
ForlagIEEE (Institute of Electrical and Electronics Engineers)
Publikationsdato8 nov. 2024
Sider1-2
Artikelnummer10846270
ISBN (Trykt)979-8-3503-6478-1
DOI
StatusUdgivet - 8 nov. 2024
Begivenhed2024 International Symposium on Antennas and Propagation (ISAP) - Incheon, Korea, Republic of
Varighed: 5 nov. 20248 nov. 2024

Konference

Konference2024 International Symposium on Antennas and Propagation (ISAP)
LokationIncheon, Korea, Republic of
Periode05/11/202408/11/2024

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