Sławomir Jerzy Fiedziuszko

Sławomir Jerzy (Jerry) Fiedziuszko, IEEE Life Fellow (2009), received his MSEE with distinction from Warsaw University of Technology in 1967. His master’s thesis on computer optimization of MASER resonators was published by the Polish Academy of Sciences. He completed his PhD at the Institute of Electron Technology of the Polish Academy of Sciences, focusing on microwave resonators and filters with high-dielectric materials, pioneering computer-aided microwave filter design in Poland.

In 1971 he moved to the United States, working at Radar Design Corporation and as an Adjunct Professor at Syracuse University. From 1979 he was with Ford Aerospace (later Space Systems/LORAL), developing dielectric resonator filters and high-power multiplexers for communication satellites. He later held senior roles at Lockheed Martin and COMDEV USA, serving as VP of Engineering.

His inventions have flown on more than 200 GEO and over 100 LEO satellites, with significant contributions to GPS and GOES programs. He has authored over 100 technical papers and holds more than 40 patents. He is an IEEE Life Fellow, IAAA Fellow, recipient of the IEEE Third Millennium Medal, the Microwave Applications Award, and Aviation Week’s Aerospace Laurels Award. He has also held numerous leadership roles within the IEEE MTT Society.

Title of the presentation:
Microwave Filters – Past, Present and Future

Abstract:
High performance microwave filters are critical, performance defining components of modern space and terrestrial communications systems. The history of advances in this technology field is well documented and spans more than seventy years.

In my talk, this will be discussed based on my personal involvement in this technology for a period of almost sixty years. Starting with Ragan’s book, articles by Seymour Cohn and Ralph Levy and Matthaei’s book we will move to what I consider the “Golden Era “ of microwave filter technology driven by needs of communications satellite industry. Significant advances in this technology such as novel implementations, filter network synthesis, EM simulations, fabrication techniques and high power filters, to name a few, will be discussed. The impact of development of temperature stable , high dielectric constant materials, discovery of high temperature superconductive ceramics and MEMS technology will also be discussed. By year 2000, communications satellite filter and multiplexer technology matured and filter development shifted toward wireless terrestrial communications systems, which are constantly moving to higher frequencies for wider bandwidth availability. This presents additional challenges for filter industry such as low cost fabrication techniques, new materials etc.
In conclusion, the future of microwave and now, millimeter wave filter technologies will be discussed.