This item is available under a Creative Commons License for non-commercial use only
Communication engineering and systems
Several types of omni-directional Circularly Polarized (CP) antennas are presented, which are employed by three different types of feedlines: Coplanar Waveguide (CPW) fed, Microstrip fed, and Differential-fed, to achieve omni-directional CP performances. The Dual-frequency Omni-directional CP antenna is proposed by using slot and inductor embedded into radiated patches. These omnidirectional CP antennas have potential application on GPS, WLAN and RFID systems.
Ammann, M., Bao, X. L., & Narbudowicz, A. (2012) Circularly Polarized Terminal Antennas for Emerging Wireless Systems, LAPC - Loughborough Antennas & Propagation Conference, Loughborough, UK, pp. 1-5, 12/11/2012. doi:10.1109/LAPC.2012.6402946