dc.contributor.author | Qu, Z | |
dc.contributor.author | Kelly, JR | |
dc.contributor.author | Gao, Y | |
dc.date.accessioned | 2021-10-15T15:11:43Z | |
dc.date.available | 2021-10-15T15:11:43Z | |
dc.date.issued | 2021-09-01 | |
dc.identifier.issn | 0018-926X | |
dc.identifier.uri | https://qmro.qmul.ac.uk/xmlui/handle/123456789/74584 | |
dc.description.abstract | This communication presents a theoretical study that establishes the performance limits for a multi-layer transmitarray unit cell. This is the first study to be applicable to unit cells in which the conducting resonators, on the different layers, are shaped differently. A theoretical calculation is derived at the beginning. The theoretical calculations predict that, for an S21 amplitude of -1 dB, unit cells having two and three conducting layers provide a phase shifting range of 170° and 360°, respectively. Additionally, for a given phase shifting range of S21, a new methodology for analyzing the maximum S21 amplitude, based on different substrates, is proposed. For the first time, we prove that it is efficient to attain the maximum S21 amplitudes by employing a smaller substrate permittivity or a quarter-of-wavelength substrate electrical thickness. Finally, the theoretical calculations have been validated through computer simulation. | en_US |
dc.format.extent | 1 - 1 | |
dc.publisher | IEEE | en_US |
dc.relation.ispartof | IEEE Transactions on Antennas and Propagation | |
dc.title | Analysis of the Transmission Performance Limits for a Multi-layer Transmitarray Unit Cell | en_US |
dc.type | Article | en_US |
dc.rights.holder | © 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | |
dc.identifier.doi | 10.1109/tap.2021.3111162 | |
pubs.issue | 99 | en_US |
pubs.notes | Not known | en_US |
pubs.volume | PP | en_US |
rioxxterms.funder | Default funder | en_US |
rioxxterms.identifier.project | Default project | en_US |
qmul.funder | Millimeter-wave Antennas and Components for Future Mobile Broadband Networks (MILLIBAN)::Engineering and Physical Sciences Research Council | en_US |
qmul.funder | Millimeter-wave Antennas and Components for Future Mobile Broadband Networks (MILLIBAN)::Engineering and Physical Sciences Research Council | en_US |