FDTD Modeling of Time-Modulated Resonators-Based Bandpass Filters using Modified Telegrapher's Equations

  • Anand Kumar
  • , Zixiao Zhang
  • , Debdeep Sarkar
  • , Symeon Nikolaou
  • , Photos Vryonides
  • , Dimitra Psychogiou

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

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.

Original languageEnglish
Title of host publication2024 IEEE/MTT-S International Microwave Symposium, IMS 2024
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages612-615
Number of pages4
ISBN (Electronic)9798350375046
DOIs
Publication statusPublished - 2024
Event2024 IEEE/MTT-S International Microwave Symposium, IMS 2024 - Washington, United States
Duration: 16 Jun 202421 Jun 2024

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
ISSN (Print)0149-645X

Conference

Conference2024 IEEE/MTT-S International Microwave Symposium, IMS 2024
Country/TerritoryUnited States
CityWashington
Period16/06/2421/06/24

Keywords

  • FDTD
  • filter
  • finite-difference time-domain
  • isolator
  • non-reciprocity

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