FDTD modeling of time-modulated resonators-based bandpass filters using modified telegrapher's equations

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Date
2024-07-30
Authors
Kumar, Anand
Zhang, Zixiao
Sarkar, Debdeep
Nikolaou, Symeon
Vryonides, Photos
Psychogiou, Dimitra
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Institute of Electrical and Electronics Engineers (IEEE)
Published Version
https://doi.org/10.1109/IMS40175.2024.10600413
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Abstract
This manuscript reports for the first time on a new finite-difference time-domain (FDTD) modeling technique for non-reciprocal bandpass filters (BPFs). The proposed approach is based on modified Telegrapher's equations that are adjusted to facilitate the FDTD modeling of discrete time-invariant and time-variant L, C components, and LC resonators that can be used for the design of RF components. In this paper, this method has been exploited for the design of non-reciprocal BPFs using time-variant resonators. The efficacy of the approach is demonstrated through the modeling of two non-reciprocal filtering examples that are compared with harmonic balance simulations in Keysight ADS. These include a three-pole BPF and a three-pole/two-transmission zero (TZ) non-reciprocal BPF.
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Keywords
Finite-difference time-domain , FDTD , Isolator , Filter , Non-reciprocity
Citation
Kumar, A., Zhang, Z., Sarkar, D., Nikolaou, S., Vryonides, P. and Psychogiou, D. (2024) 'FDTD modeling of time-modulated resonators-based bandpass filters using modified telegrapher's equations', 2024 IEEE/MTT-S International Microwave Symposium - IMS 2024, Washington, DC, USA, 16-21 June, pp. 612-615. https://doi.org/10.1109/IMS40175.2024.10600413
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https://hdl.handle.net/10468/16254
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Tyndall National Institute - Conference Items
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© 2024, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.