The conference paper described the usage of composite right/left-handed transmission lines to increase the bandwidth of CP patch antennas
The annual IEEE International Symposium on Antennas and Propagation (IEEE APS) conference was held in Vancouver, BC, Canada for the year 2015. While I was excited about travelling to an awesome city with great latte’s, I was even more excited about presenting some of my recent work on CP antenna designs. The grand challenge inherent to CP antennas is to satisfy two performance requirements simultaneously. Antenna engineers describe these performance parameters as impedance matching and axial ratio, which is a measure of how circular the radiated waves appear. Providing good performance in both of these parameters is even harder to accomplish for a broad range of frequencies. We have recently found that a novel class of metamaterial structures could potentially offer improved bandwidth, and this paper describes our recent designs incorporating the CRLH into a CP antenna array. The paper was entitled “Dispersion engineered right/left-handed transmission lines enabling near-octave bandwidths for wideband CP patch arrays” and can be accessed here.