Abstract
This paper presents the design, analysis, and characterization of a spoof surface plasmonic i.e. plasmonic metamaterial, based pass-band tunable filter. A T-shape resonator corrugated with rectangular shape has been used to design the proposed filter. Varactor diodes (SMVl232–079LF) are used to introduce tuning in the designed SSPP based T-shape resonator. The operating mechanism of designed filter is explained mathematically through its equivalent even-odd mode analysis. The tuning range of the developed center frequency tunable T-shape bandpass filter prototype is 3.49 GHz - 3.63 GHz ($\sim 140MHz$). The proposed tunable bandpass filter shows an important role for the development of integrated flexible plasmonic devices and circuits at THz and microwave frequency.
Published Version
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