IWTU2: Circular Polarization with mmWave Phased Array Antenna: Over-the-Air Testing and Performance Evaluation

Presentation Abstract
Phased Array Antennas (PAAs) are crucial in satellite communications, where beamforming plays a vital role. Circular Polarization (CP) is widely used in satellite applications, requiring an axial ratio (AR) <3 dB, wide frequency range, and scanning angle. This workshop will discuss efficient evaluation of CP performance using PAAs, including influential factors like phase and gain variations. The PAA under test will be the Fujikura FutureAccessTM Phased Array Antenna Module (PAAM) and we will report on the importance of accurate Over-The-Air (OTA) testing and demonstrate CP performance using Rohde & Schwarz equipment.