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3‐D helical THz antennas
Author(s) -
Dean Robert N.,
Nordine Paul C.,
Christodoulou Christos G.
Publication year - 2000
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(20000120)24:2<106::aid-mop8>3.0.co;2-k
Subject(s) - terahertz radiation , bolometer , optoelectronics , materials science , microwave , antenna (radio) , substrate (aquarium) , microelectromechanical systems , laser , chemical vapor deposition , radiation , optics , physics , detector , electrical engineering , engineering , oceanography , quantum mechanics , geology
This paper presents a novel method of fabricating helical antennas, singular and arrayed, for the low‐terahertz (0.1–2.7 THz) frequency range. The THz antenna structures are fabricated by using laser chemical vapor deposition (LCVD) to form fibers that can be grown into complex three‐dimensional structures directly on semiconductor substrates. By focusing the laser through a diffractive optic, arrays of antennas can be fabricated at the same time. THz radiation detection devices can be realized by combining the LCVD antennas with MEMS microbolometers that convert received THz radiation into a change in resistance. Arrays of these antenna–bolometer pairs can be fabricated on the same substrate to realize a THz imaging device. ©2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 24: 106–111, 2000.