Reconfigurable Wideband Linear-Polarized and Dual Left/Right-Hand Circularly-Polarized Waveguide Antennas for Beamforming Antenna array

In this article, a reconfigurable waveguide antenna design with linear-polarized/Left-handed/right-hand circularly-polarized (LHCP/RHCP) modes in K/Ka-Band for a massive MIMO beamforming system based on active phased array is presented. Both the linear-polarized and dual LH/RH CP waveguide antennas provide wideband operation performance for K/Ka-Band, which are applicable for the antenna array in a beamforming system for different purposes and requirements in satellite communication applications. Both simulated results and some preliminary experimental results are presented for the demonstration.