CRLH Networks for Wideband CP Arrays: Revisit, review, and extensions of current techniques for high-performance antenna systems

J. M. Kovitz, J. Choi, and Y. Rahmat-Samii, “Supporting Wide-Band Circular Polarization: CRLH Networks for High-Performance CP Antenna Arrays,” IEEE Microwave Magazine, vol. 18, no. 5, pp. 91-104, July-Aug. 2017.