Description

📡 4-Week CST Workshop: RIS, Active Metasurfaces & Beam Steering

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🗓️ WEEK 1

🔹 Day 1 – Saturday
RIS Unit-Cell Design Basics

• Introduction to RIS, metasurfaces, reflective and transmissive unit cells
• Create substrate, ground plane, metallic resonator, and define material properties
• Parameterize important geometrical dimensions and operating frequency
• Build a complete parametric RIS unit-cell model in CST
• Study resonance behavior and the effect of geometrical parameters

🔹 Day 2 – Sunday
Periodic Simulation & Phase Extraction

• Apply periodic boundaries, Floquet ports, and plane-wave excitation
• Configure solver, mesh settings, polarization, and frequency range
• Extract reflection/transmission magnitude and phase
• Analyze surface current, electric field, and magnetic field distributions
• Study normal and oblique incidence performance

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🗓️ WEEK 2

🔹 Day 3 – Saturday
Passive RIS Design & Optimization

• Design and optimize reflective RIS unit cells
• Perform parameter sweeps for resonance and phase tuning
• Improve reflection magnitude and obtain wide phase coverage
• Study substrate, resonator, and dimensional effects on RIS performance
• Select optimized unit-cell configurations for array implementation

🔹 Day 4 – Sunday
1-Bit, 2-Bit & Multi-State RIS Design

• Develop multiple geometrical phase states
• Design 1-bit RIS with phase states
• Design 2-bit RIS with states
• Analyze amplitude balance, phase difference, and quantization error
• Prepare phase-state coding and lookup tables for beam steering

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🗓️ WEEK 3

🔹 Day 5 – Saturday
Active RIS Using PIN Diodes

• Introduce electronically reconfigurable RIS concepts
• Create diode gaps and model PIN diodes using lumped/discrete elements
• Simulate ON/OFF states and equivalent RLC models
• Compare reflection magnitude and phase for different diode states
• Optimize diode placement and develop programmable 1-bit RIS states

🔹 Day 6 – Sunday
Varactor-Based Tunable RIS

• Model varactor-loaded RIS using variable capacitance
• Perform capacitance sweeps and obtain tunable reflection-phase response
• Generate capacitance-versus-phase and magnitude characteristics
• Study tuning range, losses, and continuous phase control
• Prepare tunable phase states for adaptive beam-steering applications

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🗓️ WEEK 4

🔹 Day 7 – Saturday
Finite RIS Array & Beam-Steering Design

• Convert the optimized unit cell into a finite RIS array
• Calculate required phase gradients for desired steering directions
• Apply 1-bit, 2-bit, and continuous phase distributions across the array
• Simulate beam steering, anomalous reflection, and multiple steering angles
• Analyze 2D/3D patterns, main-beam direction, gain, beamwidth, and sidelobes

🔹 Day 8 – Sunday
Complete RIS & Dynamic Beam-Steering Project

• Build a complete passive/active RIS from unit cell to finite array
• Implement programmable phase distributions for different beam directions
• Demonstrate dynamic beam switching and beam scanning in CST
• Compare passive, PIN-diode, and varactor-based RIS performance
• Analyze gain, efficiency, scan loss, sidelobes, and phase quantization effects
• Final optimization, result extraction, and complete CST beam-steering project

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✅ Workshop Outcome:
Participants will be able to design, simulate, optimize, and analyze passive and active RIS unit cells, 1-bit/2-bit phase states, PIN-diode and varactor-based RIS, finite arrays, and beam-steering systems using CST Studio Suite.

NOTE: You can send your Payment Screenshot on WhatsApp:  +1(514)605-3886