Authors: Adam Narbudowicz , Xiulong Bao and Max J. Ammann
Source: FERMAT, Volume 10, Article 1, Jul_Aug, 2015
Abstract: The paper discusses recent developments and challenges in the design of small omnidirectional circularly-polarized (CP) antennas. Although omnidirectional CP coverage is easily achievable using antenna arrays, it is just recently that small and low-cost antennas delivered this functionality. The paper addresses practical design problems for these antennas, not reported in previous publications. This includes selection of the omnidirectional plane relative to the ground plane and measurement challenges. Future perspectives on how these antennas can provide electronically steerable beams are investigated using simulated results.
Index Terms: Circular-polarization, small antennas, 0mnidirectional radiation pattern, adaptive antennas.
View PDFOmnidirectional circularly polarized antennas – a small antenna perspective