Dispersion Control of a Helix Slow-Wave Structure by I-shaped Metamaterial Loading for Wideband Traveling-Wave Tubes

Guha, R and Ghosh, SK (2020) Dispersion Control of a Helix Slow-Wave Structure by I-shaped Metamaterial Loading for Wideband Traveling-Wave Tubes. In: URSI Regional Conference on Radio Science (URSI-RCRS 2020), February 12-14, 2020, IIT (BHU), Varanasi, India.

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Abstract

A simple metamaterial loading scheme for a helical slow- wave structure (SWS) has been proposed in lieu of a conventional anisotropic loading — metal vane loading scheme. The proposed structure consists of a helix in a metal envelope supported by three rectangular dielectric rods- Left handed material property (epsilon-negative) of these support rods have been achieved by printing I- shaped metal-strip on both of radial faces of each rod. The structure has been simulated on CST and shows better control on dispersion and higher interaction impedance compared to conventional anisotropically loaded helix SWS.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	Microwave Tubes > Travelling Wave Tubes
Divisions:	Microwave Tubes
Depositing User:	Mr. Jitendra Nath Bajpai
Date Deposited:	10 Sep 2021 11:29
Last Modified:	10 Sep 2021 11:29
URI:	http://ceeri.csircentral.net/id/eprint/543

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