TY - GEN
T1 - Wideband ±45° polarization reconfigurable aperture-fed patch antenna
AU - Lin, Wei
AU - Wong, Hang
N1 - Publisher Copyright:
© 2015 The Institute of Electronics, Information and Comm.
PY - 2016/4/4
Y1 - 2016/4/4
N2 - 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.
AB - 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.
KW - aperture-fed patch antenna
KW - reconfigurable antennas
KW - wideband
UR - http://www.scopus.com/inward/record.url?scp=84967145633&partnerID=8YFLogxK
M3 - Conference article published in proceeding or book
AN - SCOPUS:84967145633
T3 - 2015 International Symposium on Antennas and Propagation, ISAP 2015
BT - 2015 International Symposium on Antennas and Propagation, ISAP 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - International Symposium on Antennas and Propagation, ISAP 2015
Y2 - 9 November 2015 through 12 November 2015
ER -