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Integrated 222‐GHz corner‐reflector antennas
Author(s) -
Gearhart Steven S.,
Ling Curtis C.,
Rebeiz Gabriel M.
Publication year - 1991
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/mop.4650040106
Subject(s) - directivity , optics , antenna (radio) , reflector (photography) , materials science , extremely high frequency , dipole antenna , antenna measurement , antenna gain , wideband , optoelectronics , antenna aperture , electrical engineering , physics , engineering , light source
A high‐gain monolithic millimeter‐wave antenna has been designed, fabricated and tested at 222 GHz. The structure consists of a traveling‐wave antenna integrated on a 1.2‐μm dielectric membrane and suspended in a longitudinal cavity etched in a silicon wafer. A new traveling‐wave antenna design yields a wideband input impedance and a low cross‐polarization component in the E‐ and quasi‐H‐plane patterns. A directivity of 17.7 dB and a main‐beam efficiency of 88.5% are calculated from the 222‐GHz pattern measurements. The integrated corner‐reflector antenna is well suited for millimeter‐and submillimeter‐wave imaging applications in large f‐number systems.