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Progress In Electromagnetics Research C
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ON THE USE OF GEGENBAUER PROTOTYPES IN THE SYNTHESIS OF WAVEGUIDE FILTERS

By L. Cifola, A. Morini, and G. Venanzoni

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Abstract:
Filter prototypes derived from Gegenbauer polynomials can represent a useful trade-off between amplitude and phase behavior. This paper discusses the main features of this prototype through a comparison with the more classical Chebyshev and Butterworth solutions; it shows, in the case of an X-band waveguide realization, how its intermediate characteristics, with respect to both amplitude and phase responses, can be very useful in satisfying particular filter performance requirements without increasing filter order.

Citation:
L. Cifola, A. Morini, and G. Venanzoni, "On the Use of Gegenbauer Prototypes in the Synthesis of Waveguide Filters," Progress In Electromagnetics Research C, Vol. 18, 185-195, 2011.
doi:10.2528/PIERC10102502
http://www.jpier.org/pierc/pier.php?paper=10102502

References:
1. Levy, R. and S. B. Cohn, "A history of microwave filter research, design, and development," IEEE Trans. Microwave Theory Tech., Vol. 32, 1055-1067, Sep. 1984.
doi:10.1109/TMTT.1984.1132817

2. Wen, S. and L. Zhu, "Numerical synthesis design of coupled resonator filters," Progress In Electromagnetics Research, Vol. 92, 333-346, 2009.
doi:10.2528/PIER09041102

3. Thomas, J. B., "Cross coupling in coaxial cavity filters --- A tutorial overview," IEEE Trans. Microwave Theory Tech., Vol. 51, Apr. 2003.
doi:10.1109/TMTT.2003.809180

4. Rhodes, J. D., Theory of Electrical Filters, John Wiley & Sons Ltd., Jan. 1, 1976.

5. Bond, C., "Bessel filters --- Polynomials, poles and circuit elements,", www.crbond.com/papers/bsf2.pdf, 2003.

6. Abramowitz, M. and I. Stegun, Handbook of Mathematical Functions, Dover, 1964.

7. Temes, G. and J. W. Lapatra, Introduction to Circuit Synthesis and Design, McGraw Hill, 1977.

8. Matthaei, G., L. Young, and E. M. T. Jones, Microwave Filters, Impedance-matching Networks, and Coupling Structures, Artech House, 1980.

9. Ansoft HFSS, Version 11.1, , 2008.


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