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Updated: Jun 5, 2026

Fabrication and Characterization of Superconducting Resonators
Published on: May 21, 2016
Double S-bend structure for a compact two mode interference coupler
1Department of Electronics and Communication Engineering, Tezpur University, Assam, India. pps@tezu.ernet.in
Abstract:
A double S-bend structure has been proposed for the reduction of coupling length of the 2 × 2 two mode interference (TMI) coupler. The coupling characteristics of the proposed structure are compared with those of conventional TMI structures using a simple mathematical model based on sinusoidal modes. The longitudinal beat length for the proposed TMI coupler is reduced by 15% of the beat length of a conventional TMI coupler. The effect of power imbalance on fabrication tolerance of the proposed TMI coupler is also studied and compared with other TMI couplers.
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