Circularly polarized beam-steering antenna array with butler matrix network

by Liu, C., Xiao, S., Guo, Y.-X., Tang, M.-C., Bai, Y.-Y., Wang, B.-Z.
Published 2014

Compact circularly-polarised microstrip antenna with symmetric-slit

by Liu, C., Xiao, S., Guo, Y.X., Bai, Y.-Y., Tang, M.-C., Wang, B.-Z.
Published 2014