Phase-change-material-based true time-delay system

HIGHLIGHTS

• What: This study explores the achievement of a tunable true time-delay (TTD) system for a microwave phased-array antenna (MPAA) by incorporating the reversible phase-transition property of phase-change material (PCM) with Bragg gratings (BGs) and a cascade of three phase-shifted Bragg grating resonators (CPSBGRs). In this work, the simulation and numerical calcus 2024, 24, x FOR PEER REVIEW 7 of 11 investigated a series delay lines with in seven BGs/CPSBGRs to perform beamfor steering c isof the speed of vacuum. design was adapted alength few angles, Ɵ for This study provides insights into . . .
  

   

  

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