Letizia, Rosa and Mineo, Mauro and Paoloni, Claudio (2016) Photonic crystal-coupler for sheet beam THz vacuum electron tubes. IEEE Electron Device Letters, 37 (9). pp. 1227-1230. ISSN 0741-3106
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Abstract
Photonic Crystal (PhC) technology was recently proposed as a compact and effective solution to improve the performance and ease the fabrication of terahertz vacuum electron devices. In particular, the introduction of defects in a bi-dimensional, all metallic PhC provides very effective transmission of the useful signal in a compact input/output coupler where a novel tunnel for sheet-beam injection/collection is realized. Simulation results are here experimentally validated via measurements on a Ku-band scaled model of the PhC-coupler which confirm the validity of the concept.