A Dual-Band Dual-Circularly-Polarized High-Gain Array Antenna

This paper introduces an innovative integrated array antenna capable of achieving dual-band dual-circularly-polarized radiation at millimeter-wave bands. With its merits of low-profile, low-cost, high-gain, and high-integration, this antenna shows great potential in the application of millimeter-wave frequency range. The operational principle of the proposed array antenna is illustrated, and the paper provides a comparison and discussion of simulated and measured results.