Abstract
This paper introduces a wideband aperture-fed patch antenna with ± 45° reconfigurable polarizations. A new method is proposed to achieve the switchable ± 45° polarizations by designing a reconfigurable feeding aperture for a square radiating patch. To realize this, we introduce four PIN diodes as RF switches connected between a cross feeding aperture such that the orthogonal directions of the rectangular aperture can be controllable. As the result, ± 45° polarizations can be reconfigured since the polarization is determined by the direction of the feeding aperture. In order to widen the bandwidth of a single patch antenna, we introduce a parasitic patch above the main radiating patch to bring an additional resonance. The bandwidth of the double-patch structure can reach 21% which is much wider than that of a single patch. In addition, the antenna has a stable gain across the operating bandwidth with the peak gain of 9.6 dBi. Good broadside radiation patterns are obtained with the 3-dB beamwidth of 56 degree. The antenna is suitable for applications requiring wideband and polarization reconfigurable characteristics.
| Original language | English |
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| Title of host publication | 2015 International Symposium on Antennas and Propagation, ISAP 2015 |
| Publisher | IEEE |
| ISBN (Print) | 9784885523038 |
| Publication status | Published - 4 Apr 2016 |
| Event | 2015 International Symposium on Antennas and Propagation (ISAP 2015) - Hobart, Australia Duration: 9 Nov 2015 → 12 Nov 2015 https://www.ieice.org/cs/isap/ |
Conference
| Conference | 2015 International Symposium on Antennas and Propagation (ISAP 2015) |
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| Abbreviated title | ISAP2015 |
| Country/Territory | Australia |
| City | Hobart |
| Period | 9/11/15 → 12/11/15 |
| Internet address |
Research Keywords
- aperture-fed patch antenna
- reconfigurable antennas
- wideband