Frequency Agile Slot Antenna Using Contactless Capacitive Loading
| Autor: | Marc R. Thibodeau, Adrian L. Bauer, Clayton G. Blosser, Shahrokh Saeedi, Jessica E. Ruyle, Hjalti H. Sigmarsson |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | IEEE Access, Vol 10, Pp 99460-99466 (2022) |
| Druh dokumentu: | article |
| ISSN: | 2169-3536 25995170 |
| DOI: | 10.1109/ACCESS.2022.3206444 |
| Popis: | In this paper, a reconfigurable slot antenna capable of tuning a full octave in frequency from 2 GHz to 4 GHz is presented. The design is based on changing the capacitive loading of a slot antenna by physically displacing a metal plate connected to a piezoelectric linear actuator that changes the apparent electrical length of the antenna. The antenna was simulated, fabricated, and measured to tune across the 2–4 GHz frequency range while maintaining a maximum return loss of greater than 9.0 dB. Simulations also show a 65.74% to 95.75% radiation efficiency across S-band. A broadside realized gain of greater than 1.73 dB was measured over the entire tuning range. Moreover, the tuning mechanism was proven robust above other methods by withstanding up to 100 W of power incident on the feed at 3 GHz. |
| Databáze: | Directory of Open Access Journals |
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