Short Presentation of Dr. Romolo Marcelli

Dr. Romolo Marcelli has received the degree of Doctor in Physics in 1983 from the University of Rome "La Sapienza".

Starting from 1984, he obtained a three years grant from Selenia S.p.A. (presently Alenia) in the framework of a cooperation with the Italian National Research Council (CNR) on "Magnetostatic wave devices for microwave applications". During that period, he was involved in the Liquid Phase Epitaxy (LPE) growth of magnetic garnet films and their characterization by means of FerroMagnetic Resonance (FMR) experiments at X band. In particular, a complete thermodynamic model for the LPE growth of high quality films was developed.

In the following years, his activity was mainly focused in the design and experiments on MagnetoStatic Wave (MSW) devices based on magnetic garnet films for wideband filtering applications and oscillators. Both, cw and pulsed regime response of MSW devices have been studied for linear and non-linear microwave signal processing purposes. Significative results of that activity were the realization of linear, non-dispersive and tunable delay lines and the soliton generation for pulse compression.

In 1987 he became a permanent member of CNR. From 1991 to 1997 Dr. Marcelli was the head of the Microwave Materials and Devices Group at the "Istituto di Elettronica dello Stato Solido del CNR".

Presently, he is the head of the Microwave Microsystem Technology Group (M²T) of CNR

Current interests of the Group include:

• Liquid Phase Epitaxy and RF Sputtering growth of magnetic garnet films
• Design, Realization and Test of Microwave Magnetic Devices
• Design and test of GaAs nonlinear transmission lines for harmonic generation and pulse compression;
• Micromachining of magnetic films, silicon and GaAs wafers for the realization of microwave and millimeter wave integrated circuits.

• From 1989 to 1997 Responsible for Research Activity Contracts on Microwave Applications of Magnetic Garnets with: Alenia SpA, Italy; European Space Agency, The Netherlands; Alcatel-Bell, Belgium; Syncrotron Engineering, Italy; NATO and Foreign Ministery (Institute of Electron Devices, Romania; Huazhong University of Science and Technology, China; Institute of Radioengineering and Electronics, Russia; Tamagawa University, Japan)
• From 1998 Responsible of Contracts an Cooperations on Micromachining for Microwave and Millimeter Wave applications supported by National and International Agencies.
• Director of the NATO Advanced Research Workshop: "Nonlinear Microwave Signal Processing: Towards a New Range of Devices", Roma, Italy, 1995.
• From 1993 to 1994 Member of the Board of the Magnetism Section of the National Group of the Structure of Matter of CNR
• From 1990 to 1995 Responsible for the CNR-IESS for the Task Projects "Electronic Materials and Devices", "Telecommunications" and "Advanced Materials" for microwave and magneto-optical applications of magnetic garnet films.
• 1995-1997 Member of the Administrative Committee of the IEEE Magnetics Society.
• Member of the Organizing Committee in the 1996 and 2000 INTERMAG Conference
• Member of the Executive Committee of the MEMSWAVE Workshop for RF MEMS Applications from 1999

Dr. Marcelli is member of:

• the American Physical Society (APS)
• the Forum on Industrial and Applied Physics (FIAP) and of the Division of Condensed Matter of the APS
• the IEEE Microwave Theory and Techniques Society
• the IEEE Magnetics Society

• Books: two, on the linear and non-linear microwave signal processing applications of magnetic films.
• Papers: more than sixty international papers (few of them invited) on topics concerning:

1. the growth and basic characterization of microwave materials,
2. the design, realization and test of microwave magnetic devices,
3. the excitation of nonlinear waves in magnetic and GaAs nonlinear transmission lines,
4. the design, realization and test of micromachined microwave circuits