Wideband Circular Polarization Reconfigurable Antenna
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Pages (from-to) | 5938-5944 |
Journal / Publication | IEEE Transactions on Antennas and Propagation |
Volume | 63 |
Issue number | 12 |
Online published | 9 Oct 2015 |
Publication status | Published - Dec 2015 |
Link(s)
Abstract
This communication introduces a polarization reconfigurable wideband circularly polarized (CP) antenna, which consists of four radiating arms connected to a reconfigurable feeding network. The four radiating arms excited by the feeding network are able to generate wideband CP waves with bidirectional radiation patterns in free space. In order to increase the gain and obtain a broadside radiation pattern, the proposed antenna is placed above a metallic reflector with the distance of quarter wavelength at the center frequency. In addition, polarization reconfigurability is realized by utilizing PIN diodes in the feeding transmission lines such that left-handed circular polarization (LHCP) and right-handed circular polarization (RHCP) modes can be selectively excited by controlling the on/off states of the PIN diodes. The proposed antenna exhibits a wide impedance bandwidth of 80% and an overlapped axial ratio (AR) bandwidth of 23.5% for both modes. The antenna gain is stable across the operating bandwidth with the peak gain of 4.8 dBic. The antenna has a wide AR beamwidth of 90°. The presented work is suitable for GPS, CNSS, or RFID applications.
Research Area(s)
- Broadside radiation pattern, PIN diodes, polarization reconfigurable antenna, wideband
Citation Format(s)
Wideband Circular Polarization Reconfigurable Antenna. / Lin, Wei; Wong, Hang.
In: IEEE Transactions on Antennas and Propagation, Vol. 63, No. 12, 12.2015, p. 5938-5944.
In: IEEE Transactions on Antennas and Propagation, Vol. 63, No. 12, 12.2015, p. 5938-5944.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review