Please use this identifier to cite or link to this item: 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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