High Efficiency Ka-Band Spatial Combiner

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D. Passi
A. Leggieri
F. Di Paolo
M. Bartocci
A. Tafuto
A. Manna

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
Section
Research Articles
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.

References


  1. A. Leggieri, G. Orengo, D. Passi, F. Di Paolo, The Squarax Spatial Power Combiner, Progress In Electromagnetic Research C, Vol. 45, p 43-55, 2013.
    View Article

  2. I. Russo, L. Boccia, G. Amendola, G. Di Massa, Parametric Analysis of Grid Amplifiers, Proceedings of European Microwave Week 2008, Amsterdam, p: 1326-1329.

  3. D. An, X. Li, J. Mou, X. Liv, A new type of Ka-Band Waveguide-Based Power Combining Structures, Proceedings of ICMMT 2008, 21-24 April 2008, Nanjing, China, p: 1-4.

  4. I. Russo, L. Boccia, G. Amendola, H. Shumacher, Compact Hybrid Coaxial Achitecture for 3-10GHz UWB Quasi-Optical Power Combiner, PIER, Progress In Electromagnetic Research, Vol. 122, 2012, p:77-92.
    View Article

  5. D. Lopz, L. Bortoli, J-P Fraysse, D. Langrez, J.F. Villemazet, J.L Cazaux, G. Soubercaze-Pun, L. Lapierre, HPA Module for Active Antenna Applications, Proceedings of 5th European Microwave Integrated Circuit Conference, Paris, 27-28 Sept. 2010, p: 404-407

  6. M. P. DeLisio and R. A. York, Quasi-optical and spatial power combining, IEEE Trans. on MTT, Vol. 50, No. 3, Mar. 2002.

  7. Nai-Shuo Cheng, Pengcheng Jia, David B. Rensch, and Robert A. York, A 120-W X-Band Spatially Combined Solid-State Amplifier, IEEE Trans. on MTT, Vol. 47, No. 12, December 1999.

  8. R. S. Symons, Tubes: Still vital after all these years, IEEE Spectrum, Apr. 1998, p: 52-63.
    View Article

  9. E. Barbour, The Cool Sound of Tubes, IEEE Spectrum, Aug. 1998, p: 24-35.

  10. B. Levush, D.K. Abe, J.P. Calame, B.G. Danly, K.T. Nguyen, E.J. Dutkowski, R.H. Abrams, R.K. Parker, Vacuum Electronics: Status and Trends, 2007 IEEE Radar Conference, p:971-976

  11. C. M. Armstrong, The vitality of vacuum electronics, IEEE 14th International Vacuum Electronics Conference (IVEC), 2013, p:1-3

  12. J. H. Booske, R.J.Dobbs, C.D.Joye, C.L.Kory, G.R.Neil, P.Gun-Sik, P.Jaehun, R.J.Temkin, Vacuum Electronic High Power Terahertz Sources, IEEE Transactions on Terahertz Science and Technology, Vol:1, Issue: 1, 2011, p:54-75.
    View Article

  13. J. X. Qiu, B.Levush, J.Pasour, A. Katz, C.M. Armstrong, D.R. Whaley, J. Tucek, K. Kreischer, D. Gallagher, Vacuum tube amplifiers, IEEE Microwave Magazine, Vol:10, Issue:7, 2009, p:38-51.
    View Article

  14. K. J. Russel, Microwave Power Combining Techniques, IEEE Trans. on MTT, Vol. MTT-27, N. 5, May 1979, p.472-478.
    View Article

  15. K. Chang, C. Sun, Millimeter-Wave Power Combining Techniques, IEEE Trans. on MTT Vol. MTT-31, N. 2, Feb 1983, p.91-107.
    View Article

  16. M. P. DeLisio and R. A. York, Quasi-optical and spatial power combining, IEEE Trans. on MTT, Vol. 50, No. 3, Mar. 2002. George E. Ponchak, Alan N. Downey, A New Model for Broadband Waveguide to Microstrip Transition Design, NASA Technical Memorandum 88905, Lewis Research Center Cleveland, Ohio, December 1986. B. Bhat, S.K. Koul, Analysis, Design and Applications of Fin Lines, Artech House, 1987.

  17. R. E. Collin, Foundations for Microwave Engineering, McGraw-Hill International Editions, 1992, ISBN 0-07-011811-6.

  18. F. Di Paolo, Networks and Devices Using Planar Transmission Lines, CRC Press LLC, 2000, ISBN 0-8493-1835-1.
    View Article

  19. Nai-Shuo Cheng, Pengcheng Jia, David B. Rensch, and Robert A. York, A 120-W X-Band Spatially Combined Solid-State Amplifier, IEEE Trans. on MTT, Vol. 47, No. 12, December 1999. D. Passi, A. Leggieri, F. Di Paolo, Computational Electromagnetic design of the Squarax Spatial Power Combiner, Ansys UGM 2014, Milano, Italy.

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