A: URSI-A Electromagnetic Metrology
A.1: Microwave to sub-millimeter measurements/standards
A.2: Quantum metrology and fundamental concepts
A.4: Time-domain metrology, EM-field metrology
A.5: EMC and EM metrology
A.8: Bioeffects and medical applications
A.11: Interconnect and packaging
A.14: High-Frequency and millimeter wireless metrology
B: URSI-B Fields and Waves
B.1: Antennas
B.1.1: Antenna theory, design, and measurements
B.1.2: Antenna arrays and systems
B.1.3: Microstrip and printed antennas, circuits, and devices
B.1.4: Antenna feeds and reflector and reflectarray antennas
B.2: Propagation, Scattering, Sensing
B.2.5: Electromagnetic propagation, scattering, and interaction
B.2.6: Guided-wave structures and systems
B.2.7: Imaging, inverse scattering, and remote sensing
B.2.8: Wireless sensors, networks, and communication
B.3: Numerical Methods
B.3.9: Integral-equation methods
B.3.10: Finite-element, finite-difference, and hybrid methods
B.3.11: Computational electromagnetics, analysis, and optimization
B.4: Theory, Materials, Education
B.4.12: Electromagnetic theory
B.4.13: Metamaterials and complex media
B.4.14: Electromagnetics education
B.5: Devices, Systems, Applications
B.5.15: RF and microwave devices, structures, and systems
B.5.16: THz and optical antennas, devices, and systems
B.5.17: Biomedical applications of fields and waves
C: URSI-C Radiocommunication Systems and Signal Processing
C.1: Cognitive radio and software defined radio
C.2: Computational imaging and inverse methods
C.3: Information theory, coding, modulation and detection
C.4: MIMO and MISO systems
C.5: Radar systems, target detection, localization, and tracking
C.6: Radio communication systems
C.6.1: Internet of Things
C.6.2: 5G
C.6.3: Electromagnetic spectral harmony
C.7: Sensor networks, and sensor-array processing and calibration
C.8: Signal and image processing
C.9: Spectrum and medium utilization
C.9.1: Electromagnetic modeling of systems and environments
C.10: Synthetic aperture and space-time processing
C.11: Ground Penetrating Radar (GPR)
C.12: Distributed, multi-modality, electromagnetic, autonomous systems
D: URSI-D Electronics and Photonics
D.1: Electronic devices, circuits, and applications
D.2: Photonic devices, circuits, and applications
D.3: Physics, materials, CAD, technology and reliability of electronic and photonic devices, in radio science and telecommunications
D.6: THz electronics and antennas
D.7: Integrated antenna systems for MMW and THz
D.10: IoT and RFID antennas, circuits, and systems
D.11: Metamaterials and plasmonics
E: URSI-E Electromagnetic Environment and Interference
E.1: Electromagnetic environment
E.1.1: Electromagnetic noise of natural origin
E.1.2: Man-made noise
E.2: Electromagnetic compatibility measurement technologies
E.3: Electromagnetic compatibility standards
E.4: Legal aspects of electromagnetic compatibility
E.5: Electromagnetic radiation hazards
E.6: Electromagnetic compatibility education
E.7: Computational electromagnetics in electromagnetic compatibility
E.7.1: Computer Modeling
E.7.2: Model Validation
E.7.3: Statistical Analysis
E.8: Effects of natural and intentional emissions on system performance
E.8.1: Crosstalk
E.8.2: Effects of transients
E.8.3: System analysis
E.8.4: Signal integrity
E.8.5: Electromagnetic compatibility in communication systems
E.8.6: Statistical analysis
E.9: High-power electromagnetics
E.9.1: Electrostatic discharge
E.9.2: Electromagnetic pulse and lightning
E.9.3: Transients
E.9.4: Power transmission
E.10: Spectrum compatibility issues, usage and management
F: URSI-F Wave Propagation and Remote Sensing
F.1: Point-to-point propagation effects
F.1.1: Measurements
F.1.2: Propagation models
F.1.3: Multipath/mitigation
F.1.4: Land or water paths
F.1.5: Scattering/diffraction
F.1.6: Indoor/outdoor links
F.1.7: Mobile/fixed paths
F.1.8: Horizontal/slant paths
F.1.9: Surface/atmosphere interactions
F.1.10: Numerical weather prediction
F.1.11: Dispersion/delay
F.1.12: Natural/manmade structures
F.2: Microwave remote sensing of the Earth
F.2.1: Atmospheric sensing
F.2.2: Ocean and ice sensing
F.2.3: Field campaigns
F.2.4: Interferometry and SAR
F.2.5: Subsurface sensing
F.2.6: Scattering/diffraction
F.2.7: Radiation and emission
F.2.8: Propagation effects
F.2.9: Urban environments
F.2.10: Soil moisture & terrain
F.3: Propagation and remote sensing in complex and random media
K: URSI-K Electromagnetics in Biology and Medicine
K.2: Dosimetry and exposure assessment
K.3: Electromagnetic and mixed-mode imaging and diagnostics
K.4: Therapeutic and rehabilitative applications
K.5: Implantable and ingestible devices
K.6: Human-body interactions with antennas and other electromagnetic devices
