Hybrid Based Test Methodology for Characterization of High Power Payloads
Shiv Shankar Pareek, Vinay Kumar Yadav, Rakesh Vyas · 2024
This paper presents a new test methodology for characterization of high power payload by using waveguide hybrid based test setup. A WR-75 waveguide hybrid is developed, qualified and utilized as a power divider in test setup to reduce the power handling requirement and better thermal management of other high power test components. Developed hybrid has 3±0.45 dB coupling and better than 27 dB isolation in 10.5 GHz to 12.5 GHz frequency band. Test waveguide routes are optimized to get better accuracy in test results. Presented methodology is successfully utilised for Thermo-vacuum testing of Ku band high power (4.8 kW) payload