Dual-mode split microstrip resonator for compact narrowband bandpass filters

Тип публикации: статья из журнала

Год издания: 2011

Идентификатор DOI: 10.2528/PIERC11062104

Ключевые слова: 1-D models, Average frequency, Dual modes, Dual-mode filter, Microstrip resonator, Narrow bands, Oscillation mode, Pass bands, Structure parameter, Transmission zeros, Bandpass filters, Frequency response, Natural frequencies, Resonators, Microstrip filters

Аннотация: A straight split dual-mode microstrip resonator is proposed. The frequencies of the two first oscillation modes in the resonator may be brought closer together by adjusting a split parameter whereas the frequency of the third mode remains approximately equal to the doubled average frequency of the first and the second modes. It is shown that formulas derived within 1D model give qualitatively true relations between the resonant frequencies and the structure parameters of the resonator. Examples of narrowband bandpass filters of the fourth and the sixth order are described. Transmission zeros below and above the passband substantially improve the filter's performance. The simulated frequency response of the three-resonator dual-mode filter is compared with the measured response of the fabricated filter.

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Издание

Журнал: Progress In Electromagnetics Research C

Выпуск журнала: Vol. 23

Номера страниц: 151-160

ISSN журнала: 19378718

Авторы

  • Tyurnev V.V. (Kirensky Institute of Physics,Siberian Branch,Russian Academy of Sciences)
  • Serzhantov A.M. (Institute of Engineering Physics and Radio Electronics,Siberian Federal University)

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