Publication Type : Journal Article
Publisher : IET Microwaves, Antennas & Propagation
Source : IET Microwaves, Antennas & Propagation, vol. 10, no. 15, pp. 1667-1672, 12 10 2016,
Url : https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/iet-map.2016.0057
Campus : Chennai
School : School of Engineering
Center : Amrita Innovation & Research
Department : Electronics and Communication
Verified : Yes
Year : 2016
Abstract : This study presents the design of a flexible compact rat-race coupler operating at 0.72 GHz on a 1 mm thick paper substrate. The ultra-wide stop-band effect caused due to the combination of the modified stepped impedance stub and the interdigitated resonator slot, offers suppression up to the 14th harmonic. The slow-wave effect caused due to the resonator slot leads to 59.6% size reduction compared with the conventional coupler at the design frequency. The signal transmission through the coupler for different substrate deformation steps has been investigated. Stable responses are reported for the same, making the prototype suitable for flexible electronics applications.
Cite this Research Publication : S. Velan, M. Kanagasabai, Jayaram Kizhekke Pakkathillam and S. K. Palaniswamy, "Compact paper-substrate rat-race coupler deploying modified stepped impedance stub and interdigitated slot resonator for wide-band harmonic suppression," in IET Microwaves, Antennas & Propagation, vol. 10, no. 15, pp. 1667-1672, 12 10 2016,