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Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/3310
Title: A tunable bandstop resonator based on a compact slotted ground structure
Authors: Wang, Xiaohua
Wang, Bingzhong
Zhang, Hualiang
Chen, Kevin J.
Keywords: Defected ground structure
Microstrip
Slotted ground structure
Tunable bandstop resonator
Issue Date: Sep-2007
Citation: IEEE transactions on microwave theory and techniques, vol. 55, no. 9, September 2007, p. 1912-1918
Abstract: A new slotted ground structure featuring compact size and spurious-free passband in the context of microstrip lines is proposed. The compactness of the new structure originates from the lengthened coupling gap in the ground. The spurious-free response in a wide passband is a result of combining both narrow and wide slots in the new structure, which effectively forms a stepped-impedance slot resonator. Compared to the previously proposed dumbbell- and H-shaped defected ground structure, over 40% size reduction can be realized in the new structure. The new structure also provides flexibilities in introducing additional functionalities to the bandstop resonators. By embedding varactors in the slotted ground structure, tunable bandstop resonators can be implemented and 13% tuning range centered at 2.36 or 2.67 GHz have been obtained.
Rights: © 2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
URI: http://hdl.handle.net/1783.1/3310
Appears in Collections:ECE Journal/Magazine Articles

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