Design and Manufacturing of a Low-Profile Coaxial-to-Dual Ridge Waveguide Adapter for CubeSat Reflectarray Antenna Systems

This work presents the design and manufacturing of a low-profile coaxial-to-dual ridge waveguide adapter operating in the X band from 8.025 GHz to 8.4 GHz. The adapter will connect the feed of the antenna system to the RF front-end. The antenna system is a polarizing reflectarray that has been designed as a downlink antenna for 6U CubeSat platforms. The tolerances necessary for the mechanical design were determined based on a detailed uncertainty quantification analysis such that the complete feed performance has minimal degradation against manufacturing tolerances. Measurement results are presented for comparison with the uncertainty quantification analysis.

Publication: IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting 2024

Place: Florence, Italy