Vol. 67

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2006-11-10

Microstrip Nonuniform Impedance Resonators

By Mohammad Khalaj-Amirhosseini
Progress In Electromagnetics Research, Vol. 67, 329-339, 2007
doi:10.2528/PIER06092002

Abstract

In this paper, a new structure is introduced to design resonators with very short length and without any discontinuity.The introduced structure, called Nonuniform Impedance Resonator (NIR), is an open- or short-circuited Nonuniform Transmission Line (NTL).To synthesize NIRs, strip width or the characteristic impedance function of the microstrip NIRs is expanded in a truncated Fourier series, first. Then, the optimum values of the coefficients of the series are obtained through an optimization approach.The usefulness of the proposed method is verified using some examples.

Citation


Mohammad Khalaj-Amirhosseini, "Microstrip Nonuniform Impedance Resonators," Progress In Electromagnetics Research, Vol. 67, 329-339, 2007.
doi:10.2528/PIER06092002
http://jpier.org/PIER/pier.php?paper=06092002

References


    1. Ha, T. T., Solid-State Microwave Amplifier Design, John Wiley & Sons, 1981.

    2. Liao, S. Y., Microwave Circuit Analysis and Amplifier Design, Prentice-Hall, 1987.

    3. Mikimoto, M. and S. Yamashita, "Bandpass filters using parallel coupled stripline stepped impedance resonators," IEEE Trans. Microwave Theory and Tech., No. 12, 1413-1417, 1980.
    doi:10.1109/TMTT.1980.1130258

    4. Sagava, M., M.Makimoto, and S.Y amashita, "Geometrical structures and fundamental characteristics of microwave stepimpedance resonators," IEEE Trans. Microwave Theory and Tech., No. 7, 1078-1085, 1997.
    doi:10.1109/22.598444

    5. Kuo, J.T.and E.Shih, "Stepped impedance resonator bandpass filters with tunable transmission zeros and its application to wide stopband design," IEEE MTT-S Int. Microwave Symp. Dig., No. 6, 1613-1616, 2002.

    6. Khala j-Amirhosseini, M., "Analysis of coupled or single nonuniform transmission lines using step-by-step numerical integration," Progress In Electromagnetics Research, Vol. 58, 187-198, 2006.
    doi:10.2528/PIER05072803

    7. Khala j-Amirhosseini, M., "Analysis of coupled nonuniform transmission lines using Taylor's series expansion," IEEE Trans. Electromagn. Compat., No. 8, 594-600, 2006.
    doi:10.1109/TEMC.2006.879340

    8. Khala j-Amirhosseini, M., "Analysis of periodic or aperiodic coupled nonuniform transmission lines using the Fourier series expansion," Progress In Electromagnetics Research, Vol. 65, 15-26, 2006.
    doi:10.2528/PIER06072701

    9. Paul, C. R., Analysis of Multiconductor Transmission Lines, John Wiley & Sons, 1994.

    10. Edwards, T. C., Foundations for Microstrip Circuit Design, John- Wiley & Sons, 1981.