Coupled Resonator Diplexer without External Junctions
Talal F. Skaik, Michael J. Lancaster
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DOI: 10.4236/jemaa.2011.36038   PDF    HTML   XML   8,305 Downloads   15,643 Views   Citations

Abstract

A coupled resonator diplexer has been designed, fabricated, and tested. The design is based on synthesis of coupling matrix of a 3-port coupled resonator circuit using optimization. Unlike conventional diplexers, the presented diplexer configuration does not include any separate junctions for distribution of energy. The diplexer has been implemented at X-band with waveguide cavity resonators, and its measured response is in good agreement with the simulated response.

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T. Skaik and M. Lancaster, "Coupled Resonator Diplexer without External Junctions," Journal of Electromagnetic Analysis and Applications, Vol. 3 No. 6, 2011, pp. 238-241. doi: 10.4236/jemaa.2011.36038.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] M. Guglielmi, “Optimum CAD Procedure for Manifold Di-plexers,” Proceeding of IEEE MTT-S International Microwave Symposium Digest, Atlanta, 14-18 June 1993, pp. 1081-1084. doi:10.1109/MWSYM.1993.277054
[2] H. Zhang and G. James, “A broadband T-junction Diplexer with Integrated Iris Filters,” Microwave and Optical Technology letters, Vol. 17, No. 1, 1998, pp. 69-72. doi:10.1002/(SICI)1098-2760(199801)17:1<69::AID-MOP19>3.0.CO;2-6
[3] S. Bastioli, L. Marcaccioli and R. SorrentiNo, “An Original Resonant Y-junction for Compact Waveguide Diplexers,” Proceeding of IEEE MTT-S International Micro-wave Symposium Digest, Boston, 7-12 June 2009, pp. 1233-1236. doi:10.1109/MWSYM.2009.5165926
[4] C. E. Saavedra, “Diplexer Using a Circulator and Interchangeable Filters,” Proceeding of the 7th International Caribbean Con-ference on Devices, Circuits and Systems, Mexico, 28-30 April 2008, pp. 1-5. doi:10.1109/ICCDCS.2008.4542631
[5] G. Macchiarella and S. Tamiazzo, “Novel Approach to the Synthesis of Microwave Diplexers,” IEEE Transactions on Microwave Theory and Techniques, Vol. 54, No. 12, 2006, pp. 4281-4290. doi:10.1109/TMTT.2006.885909
[6] G. Macchiarella and S. Tamiazzo, “Synthesis of Diplexers Based on the Evaluation of Suitable Characteristic Polynomials,” IEEE MTT-S Interna-tional Microwave Symposium, San Francisco, 11-16 June 2006, pp. 111-114. doi:10.1109/MWSYM.2006.249406
[7] G. Macchiarella and S. Tamiazzo, “Synthesis of Star- Junction Multiplexers,” IEEE Transactions on Microwave Theory and Techniques, Vol. 58, No. 12, 2010, pp. 3732-3741. doi:10.1109/TMTT.2010.2086570
[8] M. J. Lancaster, “Ra-dio Frequency Filter,” World Intellectual Property Organization Patent, WO/01/69712, 2001.
[9] A. Garcia-Lamperez, M. Salazar-Palma, and T. K. Sarkar, “Analytical Synthesis of Mi-crowave Multiport Networks,” IEEE MTT-S International Mi-crowave Symposium Digest, USA, 6-11 June 2004, pp 455-458. doi:10.1109/MWSYM.2004.1336009
[10] A. Gar-cia-Lamperez, M. Salazar-Palma, and T. K. Sarkar, “Compact Multiplexer Formed by Coupled Resonators with Distributed Coupling,” IEEE Antennas and Propagation Society Interna-tional Symposium, USA, 3-5 July 2005, pp. 89-92. doi:10.1109/APS.2005.1551250
[11] F. Loras-Gonzalez, S. SobriNo-Arias, I. Hidalgo- Carpintero, A. Garcia-Lamperez and M. Salazar-Palma, “A Novel Ku-band Dielectric Resonator Triplexer Based on Generalized Multiplexer Theory,” IEEE MTT-S International Microwave Symposium Digest, Anaheim, 23-28 May 2010, pp. 884-887. doi:10.1109/MWSYM.2010.5515905
[12] T. Skaik, M. Lan-caster and F. Huang, “Synthesis of Multiple Output Coupled Resonator Microwave Circuits Using Coupling Matrix Optimi-zation,” IET Journal of Microwaves, Antennas and Propaga-tion, Vol. 5, No. 9, 2011. pp. 1081-1088. doi:10.1049/iet-map.2010.0447
[13] T. Skaik, M. Lancaster and F. Huang, “Coupled-Resonator 3-dB Power Divider,” Pro-ceedings of the IET seminar on Passive RF and Microwave Components, Birmingham, April 2010, pp. 21-36.

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