A novel Ka-band dual-band dual-circularly-polarized antenna array is presented in this letter. A dual-band antenna with left-hand circular polarization for the Ka-band downlink frequencies and right-hand circular polarization for the Ka-band uplink frequencies is realized with compact annular ring slots. By applying the sequential rotation technique, a 2 × 2 subarray with good performance is obtained. This letter describes the design process and presents simulation and measurement results.

Additional Metadata
Keywords annular slot, Antenna array, dual circular polarization, dual frequency, sequential rotation technique
Persistent URL dx.doi.org/10.1109/LAWP.2016.2572261
Journal IEEE Antennas and Wireless Propagation Letters
Citation
Mener, S. (Simon), Gillard, R. (Raphael), & Roy, L. (2017). A Dual-Band Dual-Circular-Polarization Antenna for Ka-Band Satellite Communications. IEEE Antennas and Wireless Propagation Letters, 16, 274–277. doi:10.1109/LAWP.2016.2572261