Miniature Tuningless Filters for Telecommunication Active Antennas Applications

This paper describes the study of filters which are part of highly integrated telecommunication active antennas for Low Earth Orbit multimedia satellites. This filters are located between the Solid State Power Amplifiers output and the radiating element. Its function consists in reducing parasitic signals generated by the SSPA. A large quantity (more than a thousand) of miniature filters is used for such multimedia programs. It has led to very innovative solutions for this product, required the development of software and tools to allow tuningless filter design and increase reproducibility of electrical performance.