Investigation of frequency-selective surfaces for a THz gyromultiplier output system

Xiang Li, Xiaoming Liu, Kevin Ronald, Wenlong He, Yang Zeng, Yasir Alfadhl, Robert Donnan, Adrian Cross, Xiaodong Chen

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)
17 Downloads (Pure)


The recent development of some high-power THz vacuum electronic devices calls for the application of space filters such as frequency-selective surfaces (FSSs) and polarization dividers. This paper presents the comparative study of two types of FSSs for a THz gyromultiplier output system, one with high-pass characteristic while the other one with low-pass functionality. Both FSSs are designed, fabricated, and experimentally tested between 200 and 1600 GHz to verify their capability of separating the dual-frequency output from the gyromultiplier. The high-power operation capability of the FSSs is also characterized by taking both the corona discharge and volumetric breakdown into consideration at the frequencies of interest. Based on the comparative study of the performance, the fabrication challenge and the high-power capability between the two FSSs, a generalized conclusion is given regarding the choice of the FSSs for high-power THz application.

Original languageEnglish
Pages (from-to)4678-4685
Number of pages8
JournalIEEE Transactions on Electron Devices
Issue number11
Early online date8 Sep 2017
Publication statusPublished - 30 Nov 2017


  • frequency-selective surface (FSS)
  • gyromultiplier
  • high-power breakdown
  • output systems


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