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Proceedings Paper

Enabling compact MMIC-based frontends for millimeter-wave imaging radar and radiometry at 94 and 210 GHz
Author(s): Ingmar Kallfass; Axel Tessmann; Arnulf Leuther; Michael Kuri; Markus Riessle; Martin Zink; Hermann Massler; Michael Schlechtweg; Oliver Ambacher
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Paper Abstract

We report on MMIC-based analog frontend components for imaging radar and radiometry at high millimeter-wave frequencies. The MMICs are realized in our metamorphic HEMT technology. In W-band, the focus is on analog frontends with multi-pixel capability. A compact four-channel receiver module based on four single-chip heterodyne receiver MMICs achieves a noise figure of 4.2 dB and a conversion gain of 7 dB. A W-band five-to-one switch MMIC with less than 3.5 dB insertion loss addresses four antenna ports and uses an integrated reference termination for pixel normalization. Both components operate in a frequency range from 75 to 100 GHz, making them suitable for broadband imaging systems with high geometrical resolution. After an overview of MMIC amplifier performance over the entire millimeter-wave frequency range, we present a chip set for imaging radar at 210 GHz, comprising linear and frequency-translating circuits.

Paper Details

Date Published: 2 October 2008
PDF: 9 pages
Proc. SPIE 7117, Millimetre Wave and Terahertz Sensors and Technology, 71170O (2 October 2008); doi: 10.1117/12.800243
Show Author Affiliations
Ingmar Kallfass, Fraunhofer Institute for Applied Solid-State Physics (Germany)
Axel Tessmann, Fraunhofer Institute for Applied Solid-State Physics (Germany)
Arnulf Leuther, Fraunhofer Institute for Applied Solid-State Physics (Germany)
Michael Kuri, Fraunhofer Institute for Applied Solid-State Physics (Germany)
Markus Riessle, Fraunhofer Institute for Applied Solid-State Physics (Germany)
Martin Zink, Fraunhofer Institute for Applied Solid-State Physics (Germany)
Hermann Massler, Fraunhofer Institute for Applied Solid-State Physics (Germany)
Michael Schlechtweg, Fraunhofer Institute for Applied Solid-State Physics (Germany)
Oliver Ambacher, Fraunhofer Institute for Applied Solid-State Physics (Germany)


Published in SPIE Proceedings Vol. 7117:
Millimetre Wave and Terahertz Sensors and Technology
Keith A. Krapels; Neil A. Salmon, Editor(s)

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