IWTh8: Circular Polarization with mmWave Phased Array Antenna: multiple simultaneous beams with independent polarizations (LHCP, RHCP, H- or V-pol)

Presentation Abstract
Phased array antennas (PAA) play a crucial role in satellite communications, where circular polarization (CP) and simultaneous multiple beams are employed to enhance capacity, coverage, and reliability. This workshop will focus on evaluating CP performance of PAAs operating in multibeam hybrid configurations, enabling independent polarizations for each beam, including left-hand circular polarization (LHCP), right-hand circular polarization (RHCP), horizontal or vertical polarization (H- or V-pol). We will delve into the design of a PAA with 256 elements, discuss measured performance, and provide a live demonstration of how to conduct over-the-air testing using a multi-reflector compact antenna test range.