Part 1: RIS Fundamentals

Chapter 2: RIS Hardware and Physics

Intermediate~180 min

Learning Objectives

  • Describe the physical structure of varactor-based and PIN-diode-based RIS elements
  • Derive the BB-bit phase-quantization loss relative to continuous phase shifts
  • State when amplitude–phase coupling is negligible and when it matters
  • Explain the role of mutual coupling in the diagonal model and its first-order correction
  • Identify the electromagnetic regimes (sub-wavelength, array-of-scatterers, anomalous mirror) of RIS operation

Sections

Prerequisites & Notation
nextSpecial
Metasurface Unit-Cell Design
Phase Quantization: 1-bit, 2-bit, Continuous
Amplitude–Phase Coupling in Real Elements
Mutual Coupling and Diagonal-Model Validity
Chapter Summary
Special
Exercises
References & Further Reading
Special

Prerequisites

Chapter 1: the diagonal phase-shift modelMaxwell's equations, reflection/transmission at interfaces (Telecom Ch. 5)Antenna arrays and aperture theory (Telecom Ch. 7, MIMO Ch. 2)Microwave circuits: S-parameters, impedance matching (Pozar Ch. 2–3)Quantization and uniform rounding (Telecom Ch. 23)

💬 Discussion

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