Design of pattern-reconfigurable circularly polarized unidirectional antenna based on quasi-radiator for ISM applications
| dc.contributor.author | Arthur, Philip | |
| dc.contributor.author | Ellis, Mubarak Sani | |
| dc.contributor.author | Ahmed, Abdul-Rahman | |
| dc.contributor.author | Kponyo, Jerry John | |
| dc.date.accessioned | 2024-05-21T15:37:32Z | |
| dc.date.available | 2024-05-21T15:37:32Z | |
| dc.date.issued | 2022-11-21 | |
| dc.description.abstract | A pattern-reconfigurable circularly polarized antenna for 2.45 GHz industrial, scientific, and medical (ISM) band applications is designed in this work. The proposed antenna consists of a slotted-stepped monopole connected to a rectangular ground plane via a shorting side-stub. This converts the omnidirectional radiation pattern of the antenna into stable unidirectional radiation. To dynamically steer the realized pattern, two switchable RF PIN diodes are jointly incorporated into the side-stubs to achieve symmetrical radiations in specific operating modes. In this way, the radiation patterns can be simultaneously tuned in the y directions by the simple switching of the PIN diodes ON and OFF. The fabricated prototype achieves an S11 smaller than -10dB within the 3dB axial ratio (AR) bandwidth with stable far-field patterns. The antenna maintains a low-profile and compact size of 0:055λ20 which makes it suitable for body-centric wireless communication (BWC) and personal wireless area networks. | |
| dc.identifier.citation | Philip Arthur, Mubarak Sani Ellis, Abdul-Rahman Ahmed, Jerry John Kponyo, Design of pattern-reconfigurable circularly polarized unidirectional antenna based on quasi-radiator for ISM applications, Heliyon, Volume 8, Issue 11, 2022, e1172 | |
| dc.identifier.issn | 2405-8440 | |
| dc.identifier.uri | https://ir.knust.edu.gh/handle/123456789/15709 | |
| dc.language.iso | en_US | |
| dc.publisher | Heliyon | |
| dc.title | Design of pattern-reconfigurable circularly polarized unidirectional antenna based on quasi-radiator for ISM applications | |
| dc.type | Article |