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Broadband MMIC tuners dedicated to noise parameter measurements at cryogenic temperatures

: Bruch, D.; Seelmann-Eggebert, M.; Kallfass, I.; Leuther, A.; Diebold, S.; Schlechtweg, M.; Ambacher, O.


Institute of Electrical and Electronics Engineers -IEEE-:
INMMIC 2012, Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits : 3rd - 4th September 2012, Dublin, Ireland
New York, NY: IEEE, 2012
ISBN: 978-1-4673-2950-7 (Print)
ISBN: 978-1-4673-2948-4 (Online)
ISBN: 978-1-4673-2949-1
3 S.
Wokshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMIC) <2012, Dublin>
Fraunhofer IAF ()
MMIC tuner; noise parameter measurement; cryogenic

This paper presents the design and measurement results of two different MMIC impedance tuners for noise parameter measurements at ambient and at cryogenic temperatures. The first design covers the frequency range from 10 to 20 GHz, while the second tuner performs from 15 to 30 GHz. The performance under cryogenic conditions was validated at 7 K with dedicated test structures.