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A fully-integrated W-band I/Q-down conversion MMIC for use in radio astronomical multi-pixel receivers

: Thome, Fabian; Ture, Erdin; Leuther, Arnulf; Schäfer, Frank; Navarrini, Alessandro; Serres, Patrice; Ambacher, Oliver

Postprint urn:nbn:de:0011-n-5999176 (984 KByte PDF)
MD5 Fingerprint: 0fe06e3af9ec144d8b819d6da3a60450
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Erstellt am: 8.9.2020

Institute of Electrical and Electronics Engineers -IEEE-:
IEEE/MTT-S International Microwave Symposium, IMS 2020 : Virtual Event: 4 - 6 August 2020, Los Angeles
Piscataway, NJ: IEEE, 2020
ISBN: 978-1-7281-6815-9
ISBN: 978-1-7281-6816-6
International Microwave Symposium (IMS) <2020, Online>
European Commission EC
H2020-INFRAIA-2016-1; 730562; RadioNet
RadioNet4 - Advanced Radio Astronomy in Europe
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IAF ()
high-electron-mobility transistors (HEMT); I/Q mixer; low-noise amplifiers (LNAs); millimeter wave (mmW); mixers; monolithic micorwave integrated circuits (MMICs); radio astronomy; schkotty diodes; W-Band

In this paper, a W-band I/Q-down-conversion monolithic microwave integrated circuit (MMIC) is presented.The MMIC is based on the Fraunhofer IAF 50-nm gate-length metamorphic high-electron-mobility transistor technology andcontains an RF 3-dB quadrature coupler, two subharmonically pumped mixer cells, two IF low-noise amplifiers, and an LO chain including a frequency tripler, a band-pass filter, and two power amplifiers. The nonlinear circuits use an anti-parallel Schottkydiode topology. The circuit covers an RF and IF bandwidth fromat least 75 to 110 GHz and 3 to 13 GHz, respectively. The MMIC exhibits a single-sideband conversion gain of up to 17 dB and an average double-sideband noise figure in the range of 14.2–15.4 dB. The input-referred one-decibel compression point is up to −7 dBm. To the best of our knowledge, the presented W-bandI/Q-down-conversion MMIC demonstrates state-of-the-art results with regards to complexity and performance.