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GaAs Schottky barrier varactor diodes for submillimeter wavelength power generation
Author(s) -
Crowe T. W.,
Peatman W. C. B.,
Winkler E.
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.4650040114
Subject(s) - varicap , terahertz radiation , heterodyne (poetry) , schottky diode , optoelectronics , local oscillator , diode , cutoff frequency , wavelength , superheterodyne receiver , power (physics) , optics , materials science , physics , electrical engineering , engineering , capacitance , radio frequency , phase noise , electrode , quantum mechanics , acoustics
There is interest in the development of heterodyne receivers for submillimeter wavelengths, particularly for space‐based remote sensing of the Earth's upper atmosphere. These receivers require solid‐state local oscillator sources. This article considers the fundamental design tradeoff that limits the cutoff frequency of varactor diodes. Recent results demonstrate a maximum cutoff frequency of 5 THz. and significant power to frequencies as high as 640 GHz.