Multiphysic Analysis of High Power Microwave Filter Using High Performance Aluminium Alloy

Stringent requirements in terms of high power handling, thermal stability, low loss, low mass and low cost are commonly imposed to microwave filters for space applications. Advanced materials emerge as promising solutions thanks to the reduced Coefficient of Thermal Expansion while maintaining thermal conductivity similar to the values of conventional aluminium. The paper presents an advanced aluminium alloy together with the material characterization performed at ESAESTEC. Multiphysic simulations using CST has been performed for a high power filter at Ku-band.