Vol. 51

Front:[PDF file] Back:[PDF file]
Latest Volume
All Volumes
All Issues
2014-06-16

Broadband Radial Waveguide Power Combiner with Improved Isolation Among Adjacent Output Ports

By Alaa Aldin Sarhan, Nader Ghadimi, Emad Hamidi, and Homayoon Oraizi
Progress In Electromagnetics Research C, Vol. 51, 63-70, 2014
doi:10.2528/PIERC14042804

Abstract

An eight-way waveguide-based power combiner/divider is presented and investigated in the frequency range 7.5-10.5 GHz. A simple approach is proposed for design purposes. The measured combiner shows a good agreement between the simulated and measured results. Insertion loss is about -0.3 dB, return loss is less than -15 dB and isolation between adjacent output ports is better than -11 dB at 8.5 GHz and reaches about -14 dB at 9.5 GHz.

Citation


Alaa Aldin Sarhan, Nader Ghadimi, Emad Hamidi, and Homayoon Oraizi, "Broadband Radial Waveguide Power Combiner with Improved Isolation Among Adjacent Output Ports," Progress In Electromagnetics Research C, Vol. 51, 63-70, 2014.
doi:10.2528/PIERC14042804
http://www.jpier.org/PIERC/pier.php?paper=14042804

References


    1. Zhang, Z., D. Zhu, and D. Liu, "A wideband 8-way radial divider/combiner with stepped impedance transformers in Ka band," 2012 IEEE MTT-S International Microwave Workshop Series on Millimeter Wave Wireless Technology and Applications (IMWS), 1-4, Nanjing, China, Sep. 18-20, 2012.

    2. Dong, Y., S.-W. Dong, and Y. Wang, "A 60 GHz solid-state power combining system," 2012 IEEE MTT-S International Microwave Workshop Series on Millimeter Wave Wireless Technology and Applications (IMWS), 1-4, Nanjing, China, Sep. 18-20, 2012.

    3. Russell, K., "Microwave power combining techniques," IEEE Trans. Microwave Theory and Techniques, Vol. 27, 472-478, 1979.
    doi:10.1109/TMTT.1979.1129651

    4. Chang, K. and C. Sun, "Millimeter-wave power-combining techniques," IEEE Trans. Microwave Theory and Techniques, Vol. 31, No. 2, 91-107, 1983.
    doi:10.1109/TMTT.1983.1131443

    5. Villiers, D. I. L., P. W. Walt, and P. Meyer, "Design of a ten-way conical transmission line power combiner," IEEE Trans. Microwave Theory and Techniques, Vol. 55, 302-308, 2007.
    doi:10.1109/TMTT.2006.890065

    6. Song, K., Y. Fan, and Z. He, "Broadband radial waveguide spatial combiner," IEEE Microwave and Wireless Components Letters, Vol. 18, 73-75, 2008.
    doi:10.1109/LMWC.2007.911984

    7. Jia, P. C., L. Y. Chen, A. Alexanian, and R. A. York, "Multioctave spatial power combining in oversized coaxial waveguide," IEEE Trans. Microwave Theory and Techniques, Vol. 50, 1355-1360, 2002.

    8. Cheng, N. S., P. Jia, D. B. Rensch, and R. A. York, "A 120-W X-band spatially combined solid-state amplifier," IEEE Trans. Microwave Theory and Techniques, Vol. 47, No. 12, 2557-2561, 1999.
    doi:10.1109/22.809006

    9. Fathy, A. E., S. W. Lee, and D. Kalokitis, "A simplified design approach for radial power combiners," IEEE Trans. Microwave Theory and Techniques, Vol. 54, No. 1, 247-255, 2006.
    doi:10.1109/TMTT.2005.860302

    10. Belohoubek, E., R. Brown, H. Johnson, A. Fathy, D. Bechtle, D. Kalokitis, and E. Mykietyn, "30-way radial power combiner for miniature GaAs FET power amplifiers," 1986 IEEE MTT-S International Microwave Symposium Digest, Vol. 86, 515-518, Jun. 1986.

    11. Franco, S. and B. Marina, Solid-state Microwave High-power Amplifiers, 1st Ed., Artech House, London, UK, 2009.

    12. Tang, W. and X. B. Yang, "Design of Ka-band probe transitions," IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD), 25-28, Sydney, NSW, Dec. 11-16, 2011.