Studies of a metal photonic bandgap cavity
- Department of Physics, University of California, San Diego, La Jolla, California 92093-0319 (United States)
We describe work on a metal photonic bandgap (PBG) cavity for potential use in high gradient, high {ital Q} accelerator structures. The configuration we discuss is a square periodic array of metal cylinders, with one cylinder removed from the center. The unit is bounded on top and bottom by conducting plates, and terminated on the periphery by microwave absorber. Numerical simulations suggest that the metal PBG cavity should have only one high {ital Q} resonant mode with monopole symmetry. Experimental measurements confirm the existence of the predicted mode, but also reveal higher order, low {ital Q}, resonances. We examine the origin of these resonances, and suggest possible methods of removing them, to eventually produce a structure with no significant higher order modes. {copyright} 1995 {ital American Institute of Physics}.
- Research Organization:
- Stanford Linear Accelerator Center
- DOE Contract Number:
- AC03-76SF00515; FG03-93ER40793
- OSTI ID:
- 253422
- Report Number(s):
- CONF-940681--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 335; ISSN 0094-243X; ISSN APCPCS
- Country of Publication:
- United States
- Language:
- English
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