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.
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.
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