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Published in:
2016 | OriginalPaper | Chapter
Design and Optimization of Band-Stop Filter Using Metamaterial Structures for K-Band Applications
Authors : Ngasepam Monica Devi, Santanu Maity
Published in: Proceedings of the International Conference on Recent Cognizance in Wireless Communication & Image Processing
Publisher: Springer India
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Abstract
This work describes the design, simulation and fabrication of a metamaterial-based band-stop filter operating at K-band with a resonant frequency of 24.5 GHz and a notch level of −33.15 dB. The device specifically implements metamaterial structures which are of practical interest in microwave applications to obtain wide bandwidth, high performance and small electrical lengths. The device consists of four unit cells with two cells placed in each ground plane on a coplanar waveguide (CPW) structure. Achieving a good suppression level has been made possible by the four unit cells which are nothing but the metamaterial structures. The band-stop performances for various widths and the gaps of the rectangular-shaped resonators (complementary split ring resonators) have been shown proving that the response characteristics of the metamaterial-based filter can be dynamically tuned. The device shows the capability of CSRR/CPW structures for microwave applications such as filters.