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References 1 POZAR, D. M.: ‘Microwave Engineering’ (John Wiley & Sons, New York, 1998) 2 C.-Y. Chang and T. Itoh, ‘A modified parallel-coupled filter structure that improves the upper stopband rejection and response symmetry,’ IEEE Trans. Microwave Theory Tech., MTT-39, no.2, pp. 310-314, Feb. 1991. 3 KUO, J.-T. AND SHIH, E.: ‘Wideband bandpass filter design with three-line microstrip structures,’ To appear on the IEE Proceedings - Microwaves, Antennas and Propagation. 4 EASTER, B. AND MERZA, K. A.: ‘Parallel-coupled-line filters for inverted-microstrip and suspended-substrate MIC’s,’ the 11th European Microwave Conf. Digest, 1981, pp. 164-167. 5 RIDDLE, A.: ‘High performance parallel coupled microstrip filters’, IEEE MTT-S Symp. Digest, 1988, pp. 427-430. 6 BAHL, I.J.: ‘Capacitively compensated high performance parallel coupled microstrip filters’, IEEE MTT-S Symp. Digest, pp. 679-682, 1989. 7 LOPETEGI, T., LASO, M.A.G., HERNÁNDEZ, J., BACAICOA, M., BENITO, D., GARDE, M.J., SOROLLA, M., AND GUGLIELMI, M.: ‘New microstrip “wiggly-Line” filters with spurious passband suppression,” IEEE Trans. Microwave Theory Tech., 2001, 49 (9), pp. 1593 — 1598. 8 Makimoto, M. and Yamashita, S.: Microwave Resonators and Filters for Wireless Communication - Theory and Design (Springer, Berlin, 2001, pp. 79-83) 9 Wang, C. and Chang, K.: ‘Microstrip multiplexer with four channels for broadband system applications’, Int. J. RF Microwave CAE, 2001 (11), pp. 48-54. 10 KUO, J.-T. “Accurate quasi-TEM spectral domain analysis of single and multiple coupled microstrip lines of arbitrary metallization thickness,” IEEE Trans. Microwave Theory Tech., MTT-43, no.8 pp.1881-1888, Aug. 1995. 11 IE3D simulator (Zeland Software Inc., Jan. 1997)
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