Polarization-Reconfigurable Omnidirectional Antenna Combining Dipole and Loop Radiators
- 16 September 2013
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Antennas and Wireless Propagation Letters
- Vol. 12 (15361225), 1102-1105
- https://doi.org/10.1109/lawp.2013.2280757
Abstract
This letter proposes the development of a polarization-reconfigurable omnidirectional antenna combining a dipole and a loop radiators. The omnidirectional circular polarization (CP) waves can be generated in the azimuthal plane by adopting two metal probes act as the dipole and printed spoke-like metal strips fabricated on two substrates that act as the loop. There are 48 p-i-n diodes placed on the two substrates to alter the current direction of the loop, which makes the antenna polarization reconfigurable. The polarization states of this antenna can be switched between left-hand circular polarization (LHCP) and right-hand circular polarization (RHCP). The antenna is fed by a microstrip line, and the feeding substrate also contains a transition part and dc bias network in it. The measured -10-dB impedance bandwidth is about 18% and 14%, and the average axial ratio (AR) in the azimuthal plane is less than 3 dB for both RHCP and LHCP. The proposed antenna is designed at 1.575 GHz, such that it can be utilized for global position systems.Keywords
This publication has 10 references indexed in Scilit:
- Omnidirectional Circularly Polarized Antenna Combining Monopole and Loop RadiatorsIEEE Antennas and Wireless Propagation Letters, 2013
- A Polarization Reconfigurable Patch Antenna With Loop Slots on the Ground PlaneIEEE Antennas and Wireless Propagation Letters, 2012
- Polarization Reconfigurable Slot Antenna With a Novel Compact CPW-to-Slotline Transition for WLAN ApplicationIEEE Antennas and Wireless Propagation Letters, 2010
- A Novel Colocated Cross-Polarized Two-Loop PCB Antenna in the ISM 2.4-GHz BandIEEE Antennas and Wireless Propagation Letters, 2010
- Perturbed Square-Ring Slot Antenna With Reconfigurable PolarizationIEEE Antennas and Wireless Propagation Letters, 2009
- Single-Fed Microstrip Patch Antenna With Switchable PolarizationIEEE Transactions on Antennas and Propagation, 2008
- A Novel Reconfigurable Microstrip Antenna With Switchable Circular PolarizationIEEE Antennas and Wireless Propagation Letters, 2007
- A reconfigurable microstrip antenna for switchable polarizationIEEE Microwave and Wireless Components Letters, 2004
- Ultrawide-Band Transitions and New Microwave Components Using Double-Sided Parallel-Strip LinesIEEE Transactions on Microwave Theory and Techniques, 2004
- A reconfigurable patch antenna using switchable slots for circular polarization diversityIEEE Microwave and Wireless Components Letters, 2002