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http://dx.doi.org/10.5515/KJKIEES.2007.18.7.748

Design of an SIR BPF by a Novel EM Tuning of Individual Resonators  

Yang, Seong-Sik (Department of Radio Science and Engineering, Chungnam National University)
Yeom, Kyung-Whan (Department of Radio Science and Engineering, Chungnam National University)
Publication Information
Abstract
In SIR filter, fringing capacitances and discontinuities yield a distorted frequency response from those expected by design formulas, especially in higher frequencies. In this paper, a procedure is presented in order to compensate for fringing capacitances and step impedance discontinuities by EM simulation for a 5th order SIR filter. This method propose the procedure of tuning the coupling and the length of individual resonator by EM simulation. For the filter composed by the tuned resonators, no further tuning is required. The procedure is experimentally justified by comparing the measured data of the fabricated filter with the simulation results.
Keywords
Parallel Coupled Microstripline Filter; SIR(Stepped Impedance Resonator); BPF(BandPass Filter);
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 김봉수, 이재욱, 송명선, '고조파 감쇠특성을 향상시킨 변형된 마이크로스트립 여파기', 한국전자파학회논문지, 13(10), pp. 1054-1060, Dec. 2002
2 S. B Cohn, 'Problems in strip transmission lines', IRE Trans. Microwave Theory and Tech., vol. 3, pp 119-126, May 1955   DOI
3 H. M. Lee, C. M. Tsai, 'Improved coupled-microstrip filter design using effective even-mode and odd-mode characteristic impedances', IEEE Trans. Microwave Theory and Tech., vol. 53, Sep. 2005
4 G. L. Matthaei, L. Young, and E. M. Jones, Microwave Filters, Impedance-Matching Networks, and Coupling Structures, New York : McGraw-Hill, 1964
5 T. Lopetegi, Migule A. G. Laso, J. Herna'ndez, M. Bacaicoa, D. Benito, M. J. Garde, M. Sorolla, and M. Guglielmi, 'New microstrip wiggly line filters with spurious passband suppression', IRE Trans. Microwave Theory and Tech., vol. 49, no. 9, Sep. 2001
6 J. B. Ness, 'A unified approach to the design, measurement, and tuning of coupled-resonator filters', IEEE Trans. Microwave Theory and Tech., vol. 46, no. 4, pp. 343-351, Apr. 1998   DOI   ScienceOn
7 D. M. Pozar, Microwave Engineering, John Wiley & Sons, Inc., 1998
8 M. Makimoto, S. Yamashita, 'Bandpass filter using parallel coupled stripline stepped impedance resonator', IEEE Transactions on Microwave Theory and Techniques, vol. MTT-28, no. 12, Dec. 1980
9 S. B Cohn, 'Parallel-coupled transmission-line resonator filter', IRE Trans. Microwave Theory and Tech., pp. 223-231, 1958
10 D. Kajfez, S. Govind, 'Effect of difference in oddand even-mode wavelengths on a parallel-coupled bandpass filter', Electron. Lett., vol. 11, pp. 117-118, Mar. 1975   DOI   ScienceOn