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A WR3-band reflective-type phase shifter MMIC with integrated amplifier for error- and loss compensation

: Müller, Daniel; Beck, A.; Massler, Hermann; Tessmann, Axel; Leuther, Arnulf; Zwick, Thomas; Kallfass, Ingmar


Institute of Electrical and Electronics Engineers -IEEE-; Gallium Arsenide Application Symposium Association -GAAS-; IEEE Electron Devices Society:
12th European Microwave Integrated Circuits Conference, EuMIC 2017 : 9-12 October 2017, Nuremberg, Germany
Piscataway, NJ: IEEE, 2017
ISBN: 978-2-87487-048-4
ISBN: 978-1-5386-3966-5
European Microwave Integrated Circuits Conference (EuMIC) <12, 2017, Nuremberg>
European Microwave Week (EuMW) <2017, Nuremberg>
European Microwave Conference (EuMC) <47, 2017, Nuremberg>
Fraunhofer IAF ()

To enable beamsteering capabilities for millimeter-wave radar and communication systems, phase shifters are key components. In this paper a WR3-band (220-325 GHz) phase shifter MMIC is presented, which is based on reflective-type phase shifters and enhanced with an integrated variable gain amplifier for loss-compensation, RMS error optimization and antenna tapering. The circuit has an average loss of only 1.6 dB and a 3 dB bandwidth ranging from 218 to 268 GHz. In this frequency range the maximum phase shift is 247° with phase and amplitude RMS errors below 10.4° and 1.5 dB, respectively. The MMIC was processed in a 50 nm InGaAs metamorphic HEMT technology and has a chip size of only 0.75 × 0.75 mm2.