ISSTT Proceedings

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Tolerance Analysis of THz-Range Lens-Antenna and Balanced SIS Mixers

Authors:
Andrey V. Uvarov, Sergey V. Shitov, Oleg V. Koryukin, Maksim A. Bukovski, Yoshinori Uzawa, Takashi Noguchi, Matthias Kroug, Masanori Takeda, Zhen Wang, A. N. Vystavkin
Abstract:
Effects caused by imperfection of extended hemispherical immersion lens-antenna are studied numerically at 865 GHz. Elliptical and aplanatic focusing regimes are tested in combination with double-slot and double-dipole feeds for their aperture efficiency in the presence of multiple misalignment factors, which include possible phase and amplitude asymmetry of complimentary SIS tuning circuit. A new balanced lens-antenna SIS mixer is analyzed for its aperture efficiency with respect to an IF bandwidth of 4-12 GHz. Experimental data on lens-antenna SIS mixers with epitaxial NbN-AlN-NbN tunnel junctions is presented.
Categories:
SIS Mixers
Year:
2007
Session:
2
Full-text:
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Page Number(s):
60-65