Тип публикации: статья из журнала
Год издания: 2011
Ключевые слова: Band pass, Dual modes, Dual-mode filter, Filter construction, Filter performance, Fourth-order, Low insertion loss, Narrow band filter, Oscillation mode, Pass bands, Second orders, Special structure, Suspended stripline, Transmission zeros, Wide upper stopband, Frequency response, Resonators, Strip telecommunication lines, Bandpass filters
Аннотация: Miniature bandpass filter constructions based on a novel dual-mode suspended stripline resonator are proposed. Because of a special structure of the resonator, the frequencies of two first oscillation modes may be brought closer together. That allows realizing narrowband filters with the wide upper stopband. The filters have low inПоказать полностьюsertion loss in the passband at small dimensions. Several transmission zeros substantially improve the filter performance. The derived coupling coeffcients account for some features in the frequency response of the filter. The second-order and fourth-order filters with transmission zeros have been fabricated and measured.
Журнал: Progress in Electromagnetics Research Letters
Выпуск журнала: Vol. 25
Номера страниц: 57-66