A new computer-aided tuning scheme for general lossy coupled-resonator bandpass filters based on the Cauchy method

References

• Cohn SB. Direct coupled resonator filters. Proc of the IRE. 1957;45(2):187–196. doi: 10.1109/JRPROC.1957.278389
   Google Scholar
• Atia AE, Williams AE, Newcomb RW. Narrow-band multiple-coupled cavity synthesis. IEEE Trans on Circuits and Systems. 1974;21(5):649–655. doi: 10.1109/TCS.1974.1083913
   Google Scholar
• Cameron RJ. Advanced coupling matrix synthesis technique for microwave filters. IEEE Trans Microw Theory Techn. 2003;51(1):1–10. doi: 10.1109/TMTT.2002.806937
   Web of Science ®Google Scholar
• Cameron RJ, Kudsia CM, Mansour RR. Microwave filters for communication systems. Hoboken, NJ: Wiley; 2007.
   Google Scholar
• Ness JB. A unified approach to the design, measurement, and tuning of coupled-resonator filters. IEEE Trans Microw Theory Techn. 1998;46(4):343–351. doi: 10.1109/22.664135
   Web of Science ®Google Scholar
• Kottapalli K, Sarkar TK, Hua Y. Accurate computation of wideband response of electromagnetic systems utilizing narrow-band information. IEEE Trans Microw Theory Techn. 1991;39(4):682–687. doi: 10.1109/22.76432
   Web of Science ®Google Scholar
• Gustavsen B, Semlyen A. Rational approximation of frequency domain responses by vector fitting. IEEE Trans Power Delivery. 1999;14(3):1052–1061. doi: 10.1109/61.772353
   Web of Science ®Google Scholar
• Hu H, Wu KL. A generalized coupling matrix extraction technique for bandpass filters with uneven-Qs. IEEE Trans Microw Theory Techn. 2014;62(2):244–251. doi: 10.1109/TMTT.2013.2296744
   Web of Science ®Google Scholar
• Adve RS, Sarkar TK, Rao SM, Miller EK, Pflug DR. Application of the Cauchy method for extrapolating/interpolating narrow-band system responses. IEEE Trans Microw Theory Techn. 1997;45(5):837–845. doi: 10.1109/22.575608
   Google Scholar
• Garcia-Lamperez A, Llorente-Romano S, Salazar-Palma M, Sarkar TK. Efficient electromagnetic optimization of microwave filters and multiplexers using rational models. IEEE Trans Microw Theory Techn. 2004;52(2):508–521. doi: 10.1109/TMTT.2003.822021
   Web of Science ®Google Scholar
• Garcia-Lamperez A, Sarkar TK, Salazar-Palma M. Generation of accurate rational models of lossy systems using the Cauchy method. IEEE Microw Wireless Compon Lett. 2004;14(10):490–492. doi: 10.1109/LMWC.2004.834576
   Web of Science ®Google Scholar
• Macchiarella G, Traina D. A formulation of the Cauchy method suitable for the synthesis of lossless circuit models of microwave filters from lossy measurements. IEEE Microw Wireless Compon Lett. 2006;16(5):243–245. doi: 10.1109/LMWC.2006.873583
   Web of Science ®Google Scholar
• Macchiarella G. Extraction of unloaded Q and coupling matrix from measurement on filters with large losses. IEEE Microw Wireless Compon Lett. 2010;20(6):307–309. doi: 10.1109/LMWC.2010.2047455
   Web of Science ®Google Scholar
• Miraftab V, Yu M. Generalized lossy microwave filter coupling matrix synthesis and design using mixed technologies. IEEE Trans Microw Theory Techn. 2008;56(12):3016–3027. doi: 10.1109/TMTT.2008.2008267
   Web of Science ®Google Scholar
• Miraftab V, Yu M. Advanced coupling matrix and admittance function synthesis techniques for dissipative microwave filters. IEEE Trans Microw Theory Techn. 2009;57(10):2429–2438. doi: 10.1109/TMTT.2009.2029625
   Web of Science ®Google Scholar
• Guyette AC, Hunter IC, Pollard RD. The design of microwave bandpass filters using resonators with nonuniform Q. IEEE Trans Microw Theory Techn. 2006;54(11):3914–3922. doi: 10.1109/TMTT.2006.884627
   Web of Science ®Google Scholar
• Baum RF.: Design of unsymmetrical bandpass filters. IRE Trans Circuit Theory. 1957;CT-4:33–40. doi: 10.1109/TCT.1957.1086352
   Google Scholar
• Valkenburg ME. Network analysis. Englewood, Cliffs, NJ: Prentice Hall; 1955.
   Google Scholar
• Traina D, Macchiarella G, Sarkar TK. Robust formulations of the Cauchy method suitable for microwave duplexers modeling. IEEE Trans Microw Theory Techn. 2007;55(5):974–982. doi: 10.1109/TMTT.2007.895394
   Web of Science ®Google Scholar
• Meng M, Wu KL. An analytical approach to computer-aided diagnosis and tuning of lossy microwave coupled resonator filters. IEEE Trans Microw Theory Techn. 2009;57(12):3188–3195. doi: 10.1109/TMTT.2009.2033868
   Web of Science ®Google Scholar
• Cameron RJ, Rhodes JD. Asymmetric realizations for dual-mode bandpass filters. IEEE Trans Microw Theory Techn. 1981;29(1):51–58. doi: 10.1109/TMTT.1981.1130286
   Web of Science ®Google Scholar
• Tamiazzo S, Macchiarella G. An analytical technique for the synthesis of cascaded N-tuplets cross-coupled resonators microwave filters using matrix rotations. IEEE Trans Microw Theory Techn. 2005;53(5):1693–1698. doi: 10.1109/TMTT.2005.847065
   Web of Science ®Google Scholar
• Hu H, Wu KL. A TM11 dual-mode dielectric resonator filter with planar coupling configuration. IEEE Trans Microw Theory Techn. 2013;61(1):131–138. doi: 10.1109/TMTT.2012.2226741
   Web of Science ®Google Scholar
• Cameron RJ, Faugere JC, Seyfert F. Coupling matrix synthesis for a new class of microwave filter configuration. IEEE MTT-S Int Microw Symp Dig. 2005 Jun;119–122.
   Google Scholar