Rectangular TEM waveguide with photonic crystal walls for excitation of quasi-optical amplifiers

M. Kim, J. B. Hacker, A. L. Sailer, S. Kim, D. Sievenpiper, J. A. Higgins

Research output: Contribution to journalConference article

31 Citations (Scopus)

Abstract

Thin photonic crystal substrates are used to produce a TEM mode in a rectangular waveguide. Hexagonal pads arranged in honeycomb lattice and connected to the ground plane by substrate vias form the photonic crystal waveguide walls. Measurements on a Ku-band waveguide with two photonic crystal sidewalls showed a Field Flatness Efficiency (FFE) of better than 80 percent between 14.9 and 15.4 GHz, a substantial increase compared to the 50 percent of conventional rectangular waveguide. Simulations of a striped photonic crystal show similar behavior with additional property that it is also possible to use the crystal on top and bottom walls. Such a waveguide could support dual cross-polarized TEM modes by preventing only the longitudinal magnetic fields at the crystal surface.

Original languageEnglish
Pages (from-to)543-546
Number of pages4
JournalIEEE MTT-S International Microwave Symposium Digest
Volume2
Publication statusPublished - 1999
EventProceedings of the 1999 IEEE MTT-S International Microwave Symposium Digest 'The Magic Touch of Microwaves' - Anaheim, CA, USA
Duration: 1999 Jun 131999 Jun 19

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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