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ULTRAWIDEBAND ANTENNA EXCITED BY A PHOTOMIXER FOR TERAHERTZ BAND
Author(s) -
Belén Andrés-García,
Luis Enrique García-Muñoz,
Daniel SegoviaVargas,
I. Cámara Mayorga,
R. Güsten
Publication year - 2011
Publication title -
electromagnetic waves
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 89
eISSN - 1559-8985
pISSN - 1070-4698
DOI - 10.2528/pier11012513
Subject(s) - terahertz radiation , excited state , antenna (radio) , optoelectronics , physics , photomixing , terahertz metamaterials , optics , telecommunications , engineering , far infrared laser , laser , atomic physics
An end-flre linear tapered slot antenna is presented in the terahertz band. The operation frequency goes from 0.6THz to 2THz, with symmetric radiation patterns from 1THz to 1.7THz, and gains up to 15dB. The gaussicity of the beam is over 80% in the whole operation band and an e-ciency at 1THz of 85%. This antenna gives enough directivity avoiding the use of a typical substrate lens, which introduce 30% of losses. This new design is a good candidate for new applications in the THz range in Radioastronomy and Imaging.

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