Simulations of the Multipactor Effect in Ferrite Circulator Junction with Wedge-Shaped Cross Section Geometry

  • Haiping Ren*
  • , Yongjun Xie
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In this article, two ferrite circulators with wedge-shaped cross section geometry have been designed, manufactured, and tested. Inclination angle of wedge-shaped geometry for two circulators is different. First, the electrical performance of the ferrite circulators is optimized using high-frequency electromagnetic simulation software (HFSS), and then measurements of the electrical performance are completed. Also, the two ferrite circulators have equivalent electrical characteristic. The isolation is greater than 20 dB, and the bandwidth is 15%. Finally, the multipactor thresholds of the circulators involved in this article are simulated using particle solver in CST simulation software and the actual measurement experiment is also performed. The simulation and measurement results show that the circulator with a larger wedge angle has a larger multipactor threshold. So, this structure can provide a reference for the design of multipactor-free ferrite circulator.

Original languageEnglish
Article number9212573
Pages (from-to)5144-5150
Number of pages7
JournalIEEE Transactions on Electron Devices
Volume67
Issue number11
DOIs
StatePublished - Nov 2020

Keywords

  • Ferrite circulator
  • multipactor effect
  • particle solver
  • wedge-shaped geometry

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