Abstract
In this chapter, design and experiments of the coplanar waveguide (CPW)-based electromagnetic band gap (EBG) bandstop filter and the micromachined tunable EBG filters are discussed. These new CPW EBG structures include an unloaded and a loaded design. The frequency characteristics of the EBG are demonstrated using different circuit parameters. An equivalent circuit model for the unloaded and loaded unit structures is derived and a dispersion diagram is obtained for both structures using commercial software and Floquet’s theorem. The electromagnetic wave behavior within a unit is analyzed. The bandstop filter is designed by cascading the EBG structures.
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Muhammad Faeyz Karim and Ai Qun Liu
References
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Liu, A.Q. (2010). Tunable Electromagnetic Band Gap Bandstop Filter. In: RF MEMS Switches and Integrated Switching Circuits. MEMS Reference Shelf, vol 5. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-46262-2_6
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DOI: https://doi.org/10.1007/978-0-387-46262-2_6
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