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MMIC-Based Components for MM-Wave Instrumentation

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11 Author(s)
Vassilev, V. ; Microwave Electron. Lab., Chalmers Univ. of Technol., Göteborg, Sweden ; Wadefalk, N. ; Kozhuharov, R. ; Abbasi, M.
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In this letter, we present results of fully integrated 90-130 GHz receiver based on 100 nm mHEMT technology. The receiver contains a low noise amplifier (LNA), mixer and LO multiplier chain integrated into a single monolithic microwave integrated circuit (MMIC). The circuit is packaged into a waveguide block, characterized and compared to on-wafer measurements. Waveguide to microstrip transitions are used to interface the MMIC to the waveguide. A breakout LNA circuit is also packaged, and its performance is compared to the receiver. The LNA noise was characterized on a wafer and after packaging. The packaged module is measured at both room and cryogenic temperatures, NF of 3.7 dB is measured at 300 K and 0.9 dB at 20 K.

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Microwave and Wireless Components Letters, IEEE  (Volume:20 ,  Issue: 10 )