Design of Dual C-shaped Ring Resonator

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Abstract

This paper proposes the design of dual C-shaped square ring resonators which are placed opposite to each other. These filtering square resonators are bounded by three sides with an open end on the fourth side. These ring filters have an oppositely faced ring within itself to augment the filtering capability. This filter operates in the UWB band and has a wide bandwidth. This dual ring resonator is operated at about 5.8GHz band on FR4 Epoxy glass substrate which has a dielectric constant of 4.4. The basic structure of the filter is etched on a ground plane. This design possesses the ease of fabrication, providing high out of band rejection. The return loss of this dual square ring filter is about -60 dB which is highly efficient and depicts the excellent return loss property of the proposed bandpass filter.

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Keywords

Band Pass Filter (BPF); FR-4 Epoxy; Resonator; Ultra-Wide Band (UWB)