FDTD Analysis of Transmission Line Loaded with Time-Varying Shunt Capacitors for Mixer Applications

Kumar, A and Chandra Dash, J and Sarkar, D (2022) FDTD Analysis of Transmission Line Loaded with Time-Varying Shunt Capacitors for Mixer Applications. In: 2022 IEEE International Conference on Electronics, Computing and Communication Technologies, CONECCT 2022, 8 - 10 July 2022, Bangalore.

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Abstract

This paper presents a finite-difference time-domain (FDTD) approach for modeling time-varying media having variable capacitors with temporal dependence. The lumped variable capacitors are placed in parallel with the transmission line, and their capacitance is periodically modulated. The propagating wave in the transmission line undergoes modulation due to the temporal changes of the media. The spectrum of the modulated wave shows new frequencies acting as a mixer. The physical properties of the modulating medium, such as the operating and switching frequencies, the capacitances of the switching states, the gap between the lumped capacitors and the number of capacitors, are parametrically studied. Lumped time-varying capacitors on a transmission line can be used for magnet-less mixer, isolator, etc. © 2022 IEEE.

Item Type:	Conference Paper
Publication:	2022 IEEE International Conference on Electronics, Computing and Communication Technologies, CONECCT 2022
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Capacitance; Finite difference time domain method; Metamaterials; Mixers (machinery); Modulation, Finite difference time domain analysis; Finite difference time domains; Mixer applications; Modelling time; Shunt capacitors; Time varying; Time-domain approach; Time-varying medium; Transmission-line; Variable capacitor, Electric lines
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	12 Oct 2022 09:02
Last Modified:	12 Oct 2022 09:02
URI:	https://eprints.iisc.ac.in/id/eprint/77313

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