High Efficiency Ka-Band Spatial Combiner

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Published: Dec 24, 2014
DOI: https://doi.org/10.7716/aem.v3i2.267
Keywords:
Finite elements fin-line structures microwave components MMIC technology spatial power

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D. Passi
University of Rome Tor Vergata
A. Leggieri
University of Rome Tor Vergata
F. Di Paolo
University of Rome Tor Vergata
M. Bartocci
Elettronica SpA
A. Tafuto
Elettronica SpA
A. Manna
Elettronica SpA

Abstract

A Ka-Band, High Efficiency, Small Size Spatial Combiner (SPC) is proposed in this paper, which uses an innovatively matched quadruple Fin Lines to microstrip (FLuS) transitions. At the date of this paper and at the Author's best knowledge no such FLuS innovative transitions have been reported in literature before. These transitions are inserted into a WR28 waveguide T-junction, in order to allow the integration of 16 Monolithic Microwave Integrated Circuit (MMIC) Solid State Power Amplifiers (SSPA's). A computational electromagnetic model using the finite elements method has been implemented. A mean insertion loss of 2 dB is achieved with a return loss better the 10 dB in the 31-37 GHz bandwidth.

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How to Cite
Passi, D., Leggieri, A., Di Paolo, F., Bartocci, M., Tafuto, A., & Manna, A. (2014). High Efficiency Ka-Band Spatial Combiner. Advanced Electromagnetics, 3(2), 10–15. https://doi.org/10.7716/aem.v3i2.267
Issue
Vol. 3 No. 2 (2014)
Section
Research Articles

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Author Biographies

D. Passi, University of Rome Tor Vergata

Davide Passi received his Laurea Degree in Electronic Engineering in July 2013 from University of Rome "Tor Vergata". Now, he is attending the Ph.D. course in Electronic Engineering in developing High, Medium Power and passive Microwave devices such as Power Spatial Combiners and Power amplifiers. His research interests are in Applied Electromagnetism, MMIC devices, Solid State microwave Power Amplifier.

A. Leggieri, University of Rome Tor Vergata

Alberto Leggieri received his Degree in Electronic Engineering in 2011 from University of Rome "Tor Vergata". Now, he is with S.I.T. S.p.A as R&D R.F. Engineer and R.F. Laboratory Manager in developing IORT dedicated electron accelerators, and he is attending the Ph.D. course in Electronic Engineering in developing High Power Microwave devices such as Power Spatial Combiners, Electron Guns, LINAC, Magnetrons and Vircators. He upgraded the accelerating structures and designed several Electromagnetic and RF-MW devices of the mobile e-IORT accelerators LIAC and LIAC-S. His research interests are in applied electromagnetism, MMIC devices, Vacuum Tubes, LINAC, and Multiphysics Modeling.

F. Di Paolo, University of Rome Tor Vergata

Franco Di Paolo received his PhD Degree in Electronic Engineering in 1984 from University of Rome "La Sapienza", Italy. He has spent several years as microwave circuit designer in industries as Fatme-Ericsson S.p.A, Elettronica S.p.A, Telit S.p.A, Finmek-Space S.p.A.  Now, he is with the University of Rome “Tor Vergata”, Italy. His research interests are in Applied Electromagnetism, Solid State microwave Amplifier, Vacuum Tube microwave Power Amplifiers. He is an IEEE Associate Member of CAS and MTT-S.

M. Bartocci, Elettronica SpA

Marco Bartocciwas born in Rome in 1960. He received the PhD Degree in Electronic Engineering in 1985 from University of Rome “La Sapienza”, Italy. Marco started working for SELENIA S.p.A. as Microwave Designer for EW applications in the 0.5-40GHz frequency range.  In 1992 he moved in Elettronica S.p.A. with the same position. After an experience of 1 year in Telit S.p.A. (2000) in research and development department for PA and LNA circuit terminals for the Globalstar satellite system he 

moved in Elettronica S.p.A. as microwave HW designer. In 2005 he became responsible of Microwave (2005-2006) department then responsible of Antenna (2007-2008) and LRU (2009-2010) departments in Elettronica S.p.A. where he is still working as scientist for the Innovation HW technology in the Product Development division.

A. Tafuto, Elettronica SpA

Antonio Tafuto was born in Naples in 1956. He received the PhD Degree in Electronic Engineering in 1981 from University of Naples “Federico II”, Italy. Just after degree, Antonio started working as Power supply designer for the IPM (Industria Politecnica Meridionale) in Naples then moved to SELENIA S.p.A. as Video and Digital Designer for Electronic Warfare Systems. In 1986 got the ESM (Electronic Support Measure) System Department responsibility till 1992 when moved to ELETTRONICA S.p.A.. After various experience as Project Manager for Electronic Warfare System Design and Programs on different platforms got the guide of Signal Processing, Antenna and Microwave Departments. Currently he is responsible for the Innovative Design and of the Electro Optical Developments in the Product Innovation and Advanced EW Solutions Department of ELETTRONICA S.p.A..

A. Manna, Elettronica SpA

Antonio Manna was born in Aversa, Italy in 1980. He received the Electronic Engineering degree in 2004 and the Ph.D. degree in 2008 from the Seconda Universita` degli Studi di Napoli, Neaples, Italy. Since 2006, he is a Microwave and Antenna designer at Elettronica S.p.A. R&D department in Rome; he is involved in the design of UWB antennas and microwave components for future EW systems. Since 2012 he is the Antenna Department Principal Engineer. His research activities are mainly in the field of microwave power amplifier and switch, UWB microwave components, UWB antenna and array design.

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