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 language | English |
|---|---|
| Pages (from-to) | 543-546 |
| Number of pages | 4 |
| Journal | IEEE MTT-S International Microwave Symposium Digest |
| Volume | 2 |
| Publication status | Published - 1999 |
| Event | Proceedings of the 1999 IEEE MTT-S International Microwave Symposium Digest 'The Magic Touch of Microwaves' - Anaheim, CA, USA Duration: 1999 Jun 13 → 1999 Jun 19 |
ASJC Scopus subject areas
- Radiation
- Condensed Matter Physics
- Electrical and Electronic Engineering