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https://hdl.handle.net/11499/5802
Title: | A novel perturbation arrangement for dual-mode resonators and its dual-band bandpass filter applications | Authors: | Gorur, A.K. Karpuz, Ceyhun |
Keywords: | dual-band filters Dual-mode resonators miniaturization Center frequency Compact structures Corner point Degenerate modes Dual mode resonators Dual modes Dual-band Dual-band bandpass filter Dual-band filter Feed line Linear filters Microstrip resonator Mode frequencies Open-circuited stub Pass bands Perturbation effect Perturbation element Resonator structures Simulations and measurements Square loop Surface area Transmission zeros Bandpass filters Microwave filters Resonators Microstrip filters |
Abstract: | In this paper, by using microstrip resonators having dual-mode characteristics, a novel dual-band bandpass filter is presented. Designed resonator structures have been formed by placing a couple of open-circuited stubs to the corner points of a square loop resonator. By means of movement of the gaps between the open ends to obtain a perturbation effect, two degenerate modes are excited, mode frequencies and transmission zeros can be controlled. A novel perturbation arrangement without using an extra perturbation element is formed. On the other hand, location of these gaps allows for creating either an elliptical or a linear filter characteristic in the related passband without shifting the center frequency and changing the bandwidth. Two resonators which represent two different passbands are fed by only one feed-line. Designed dual-band microstrip filters have totally 14.2mm × 14.2mm surface area and so, such a configuration has been satisfied a compact structure. Four dual-band filters using dual-mode resonators are demonstrated with their simulation and measurement results. © 2011 EUROPEAN MICROWAVE ASSOC. | URI: | https://hdl.handle.net/11499/5802 | ISBN: | 9782874870224 |
Appears in Collections: | Mühendislik Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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