Performance of subwavelength resonant cavities at FIR

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Colleges, School and Institutes

External organisations

  • Heriot-Watt University
  • University of Edinburgh
  • Loughborough University
  • Institute of Integrated Systems
  • Inst. Integrated Systems


A subwavelength 1-D resonator at FIR is presented and studied. The structure consists of a cavity formed between a metallised (silver) surface and a metamaterial surface comprising silver patches on a silver-backed silicon substrate. The concept derives from recent discoveries of artificial magnetic conductors. Full wave simulations, based on FEM and TLM methods, have been carried out to prove the concept and demonstrate the effective magnetic boundary condition. Further reduction of the cavity thickness to less than λ/8 is presented. Significantly, the quality factor has been assessed as a function of the cavity profile. It is demonstrated that the quality factor drops to about one seventh of its value when the profile reduces from half to one eighth of the wavelength.


Original languageEnglish
Title of host publicationIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
Publication statusPublished - 2007
Event2007 IEEE Antennas and Propagation Society International Symposium, AP-S - Honolulu, HI, United States
Duration: 10 Jun 200715 Jun 2007


Conference2007 IEEE Antennas and Propagation Society International Symposium, AP-S
CountryUnited States
CityHonolulu, HI

ASJC Scopus subject areas