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120 GHz 2-bit reflection-type phase shifter based on PIN diodes switched-lines.
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  • Cedric DURAND,
  • Sylvain Bourdel,
  • Frederic PAILLARDET,
  • Loïc Vincent,
  • Jordan CORSI,
  • Philippe Ferrari
Grenoble INP UGA

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Sylvain Bourdel
Grenoble INP UGA
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Loïc Vincent
Grenoble INP
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Jordan CORSI
Grenoble INP UGA
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Philippe Ferrari
University Grenoble Alpes
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In this paper, a 2-bit digital reflection-type phase shifter working at 120 GHz is presented. It uses a compact coupled-lines coupler with low insertion loss and high isolation over a wide bandwidth. The loads are made by a microstrip-line loaded by three PIN diodes whose states are tuned ON/OFF to obtain 90°, 180° and 270° phase shift relative to the reference (0°). Measurement results show RMS phase and amplitude error equal to 10.3° and 1.2 dB, respectively. The maximum insertion loss is equal to 8.6 dB, leading to a figure of merit of 31°/dB. As shown by simulation, by flipping PIN diodes and use negative voltage for biasing, the maximum insertion loss could be reduced to 3.6 dB (figure of merit of 75°/dB) along with a great improvement in RMS phase and amplitude errors, thus showing the potential of the proposed architecture.
01 Mar 2023Submitted to Electronics Letters
02 Mar 2023Submission Checks Completed
02 Mar 2023Assigned to Editor
08 Mar 2023Reviewer(s) Assigned
28 Mar 2023Review(s) Completed, Editorial Evaluation Pending
28 Mar 2023Editorial Decision: Revise Major
26 Apr 20231st Revision Received
26 Apr 2023Submission Checks Completed
26 Apr 2023Assigned to Editor
26 Apr 2023Review(s) Completed, Editorial Evaluation Pending
26 Apr 2023Editorial Decision: Accept