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Radar System and Embedded AI Signal Processing
Dual Polarized FMCW Radar System
X/K-Band Dual-Polarized FMCW Radar System Design
X-Band Dual-Polarized Lens Antenna and K-Band Dual-Polarized Dielectric Resonator Antenna
Real-Time Radar State Tracking with a Coupler-Integrated Antenna Monitoring the Radiated Signal
Dual Polarized Automotive SAR with Polarization Synthesis Method
Vehicle-Mounted Dual-Polarized FMCW SAR with a Coupler-Integrated Lens Antenna
Range-Doppler SAR Imaging with Range Cell Migration Correction and Azimuth Compression
Polarization Synthesis: H/V Phase-Difference Compensation for In-Phase Combining and Higher SNR
Drone SAR with Motion Compensation Method
Drone-Borne X-Band FMCW SAR with a Lens Antenna
Back-Projection Imaging Directly on the Ground Grid along Curved, Uneven Flight Paths
PGA Autofocus Removing Residual Phase Error without GPS/IMU, Verified with Corner Reflectors
Through-the-Wall Human Detection Radar System
X-Band Dual-Polarized FMCW Radar with a Compact Wideband High-Gain Lens Antenna
Through-the-Wall Detection of Single and Multiple Human Targets
Polarization Synthesis Enhancing the Human Return behind the Wall
Oblique-Incidence Dual-Polarized Bistatic FMCW Radar for Through-Wall Human Detection
Oblique Wave Incidence to Suppress Strong Wall Reflection in Through-Wall Sensing
Dual-Polarized Bistatic FMCW Radar with Coherent H/V Polarization Synthesis
SNR Improvement by Polarization Synthesis over Single-Polarization Reception
Dual-Polarized Distributed FMCW Radar for Through-the-Wall Human Detection
Dual-Polarized Distributed FMCW Radar with a High-Gain Lens Array Antenna
Polarization-Based Signal Separation Allowing Multiple Transmitters to Operate Simultaneously
Human Detection behind a Concrete Wall and Machine-Learning-Based Range-Bin Selection
Distributed FMCW Radar System Using Radiative Wireless LO Distribution
Radiative Wireless LO Synchronization Replacing Wired Reference Distribution
Wide-Beam Stacked Magnetic-Dipole Antenna for Wide-Area LO Coverage
Coherent Multi-Node Combining for SNR Improvement over Individual Radar Nodes
Polarization and Pattern Reconfigurable FMCW Radar for Indoor Human Detection
Polarization and Pattern Reconfigurable Dielectric Lens Antenna without Diodes or Bias Circuits
Three-Zone Azimuth Detection with Two Antennas by Comparing Polarization-Channel Magnitudes
Indoor and Outdoor Human Detection Experiments, Including Detection through Wooden Doors
Fast ISAR Motion Compensation Algorithm
W-Band FMCW ISAR Measurement of a Moving Vehicle Target
Improved Stage-by-Stage Approaching Motion Compensation Using an Entropy Envelope
Fewer Phase Samples and Faster Processing at the Same Image Entropy
Anti-Drone LFM Pulse Hybrid-Beamforming Radar and Signal Processing
X-Band LFM Pulse Radar with Analog–Digital Hybrid Beamforming
Matched Filtering, MTI, CFAR, Sidelobe Blanking, Monopulse, and Multi-Target Kalman Tracking
Mobile Operation with GPS-Based Clutter-Map Subtraction Removing Building Ghost Targets
Embedded FPGA Signal Processing for Real-Time Anti-Drone Radar
Real-Time Radar Signal Processing and Tracking on a Single FPGA SoC
Online Noise-Scale Adaptation for Real-Time Kalman Tracking
Doppler-Band-Partitioned CNN–CFAR Reducing False Alarms for Slow Drones in Foliage Clutter
FMCW Radar ISAR Imaging for Drone-Bird and Drone-Model Discrimination
X-Band FMCW Radar ISAR Imaging with PGA and MEM Autofocus
Drone–Bird Discrimination Using Measured ISAR Images
Drone-Model Discrimination with Polarization-Synthesized ISAR
Physical AI: Radar-Based Vital-Sign and HRV Monitoring with On-Device NPU
AI-Enhanced CW Radar for Contact-Free Heart Rate and Respiration Monitoring
FMCW MIMO Radar for Clutter Discrimination and Heart Rate Variability (HRV) Tracking
NPU-Friendly Lightweight Radar AI for Privacy-Preserving On-Device Vital-Sign Monitoring
Paper: [C20] AI-enhanced CW radar for vital sign monitoring in ISAC applications, IEEE CCNC, 2026
Patent: Radar Vital-Sign Measurement Apparatus and Method Based on Adaptive Multi-Algorithm Fusion, KR 10-2026-0092463 (Filed May 2026)
Circularly Polarized 2-D MIMO Radar for IoT Radar Imaging
Circularly Polarized 2-D MIMO FMCW Radar Front-End for Compact IoT Imaging
Aperture-Shared Tile Integrating TX and RX Channels with High TX–RX Isolation
Scalable Tiling; Measured Range–Azimuth and Range–Elevation Imaging with Multitarget Separation
Compact Broadband Vector Network Analyzer for Semiconductor Process Chamber Diagnosis
Compact Broadband Vector Network Analyzer Built from MMICs under MCU Control
Gain/Phase-Detector Receiver Comparing Reference and Reflected Signals for Short Measurement Time
Link-Budget-Based Design Applied to Semiconductor Process Chamber Diagnosis
Beamforming System, Algorithm, and Wireless Communication
Wideband Circularly Polarized Phased Array with Axial Ratio Control
Wideband CP Phased Array with Dual-Polarized Patches and a Multi-Channel Beamforming Board
Reconfigurable 2-D Axial Ratio Control for Wide-Angle Axial Ratio Scanning
Pattern Optimization Algorithm for Low Sidelobe Level during CP Beam Scanning
Wide-Angle Scanning Phased Array Antenna System for Automotive-Satellite Communication
Arc-Shorted Half-Elliptic Magnetic Dipole Element with Wide Beamwidth and Low Cross-Polarization
Linear Phased Array Built from the Wide-Beam Elements for Wide-Angle Scanning
Automotive Phased Array Concept with Measured Azimuth and Elevation Scan Patterns
Circularly Polarized Chip Integrated Phased Array Antenna System and Antenna in Package
X/Ku-Band CP Phased Array with Beamforming ICs Integrated into the Antenna Board
Guided-Via Aperture-Coupled Feeding Suppressing Leaky Waves; Stacked Patch for Wideband Operation
Measured Wideband, Wide-Angle Beam Scanning with Low Axial Ratio
Paper: [C11] Design of chip integrated circularly polarized phased array system, IEEE RFIT, 2022
Ku/Ka Dual-Band Aperture-Shared Planar Antenna Array for Satellite Communication
Single-Fed Ku/Ka Dual-Band Aperture-Shared Antenna Element for Satellite Communication
Linear and Sequentially Rotated Arrays for Ku-Band Receive and Ka-Band Transmit
Measured Dual-Band Circularly Polarized Gain and Axial Ratio
Widebeam Coverage mmWave Switched Beamforming Antenna System Design
mmWave Switched Beamforming Antenna with a Single RF Switch and Multiple Radiators
Compact Low-Profile Core without Complex Feed Networks or Beamformers
Multiple Beam Directions Providing Wide Beam Coverage for Indoor IoT Networks
Wide-Angle Compact Automotive Antenna
Half-Mode SIW Cavity Antenna Sized for the Automotive Rear-View Mirror
Differential Feeding with a Delay Line Forming a Wide Azimuth Beam
Wider Azimuth Beamwidth than a Conventional Patch Array with Similar Gain and Size
Appliance Wireless Module Evaluation and Link Budget Analysis
EIRP-Based TIS Estimation without an OTA Chamber, Validated against Chamber Measurement
Field RSSI Comparison between Sub-GHz and Wi-Fi Bands: Longer Range and Better Penetration
Link Budget Calculator with PER Curves for Appliance Wireless Module Design
Ray-Tracing-Based Indoor Propagation Analysis
Deterministic Ray Tube (DRT) Ray Tracing with a Receiver-Independent Tree
Received Power Heatmaps Validated by Indoor Measurements
Received Power Prediction for Apartment Floor Plans
Reconfigurable Intelligent Surface for Integrated Sensing and Communication
2-Bit Varactor RIS Unit Cell with Low-Loss Reflection Phase Control
RIS Panel with Bias Board and MCU Codeword Control for Beam Steering
TX–RIS–RX Full-Wave Simulation and VNA-Based Beam Steering Measurement
Wireless Power Charging System and Maximum Efficiency Tracking Algorithm
Multiple Receivers Wireless Power Charging System and Maximum Efficiency Tracking Algorithm
Loosely Coupled Multiple-Receiver Wireless Power Charging with BLE Feedback
Real-Time Mutual Inductance Tracking Using Receiver Feedback
Optimal Load Impedance and Transmitting Current Control for Maximum System Efficiency
Omnidirectional Wireless Power Transfer with Single-Step Phase Control
Omnidirectional WPT with Three Orthogonal TX Coils and BLE Feedback
Single-Step Inverter Magnitude and Phase Control under TX Coil Cross-Coupling
Measured Efficiency Improvement over Conventional Current Control
Electromagnetic Materials for Transparent Antenna and EMI Shielding
Transparent Conductive Oxide Material and Antenna
ITO/Ag/ITO Multilayer Electrode with Low Sheet Resistance at High Transparency
RF-Based Sheet Resistance Estimation for Films Thinner than the Skin Depth
UWB Transparent Antenna with High Efficiency and Double-Sided Wide-Angle Coating
UWB Transparent Antenna Using Nanonetwork Material
Ag Nanonetwork Electrode with High Transparency and Low Sheet Resistance
Flexible UWB Transparent Antenna with High Radiation Efficiency
Stable Performance under Repeated Bending for IoT Devices
Optimized Wired Metal Mesh Transparent Antenna for IoT Applications
Effective Sheet Resistance Model of Wired Metal Mesh Including GHz-Range Losses
Miniaturized Wideband Transparent Antenna with High Total Efficiency
Robustness under Bending and Temperature; Indoor IoT EVM Evaluation
Transparent Invisible Antenna for Automotive Communication
Invisible Transparent Antenna Material for Vehicle Glass
Wideband Invisible Vehicle Antenna Covering All Vehicle Communication Bands
Invisible Dipole on Vehicle Glass Measured in an Anechoic Chamber
Flash-induced Porous Graphene Design for EMI Shielding
High-Throughput Porous Graphene by Flash Lamp with Synergistic UV and Vis–NIR Photo-Effects
EMI Shielding Effectiveness Controlled by Lamp Fluence, Verified in Radar EMI Experiments
Large SAR Reduction in Human-Body Shielding Tests
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