Papers for IVEC 2021 are sought on the following topics:

1. Vacuum Electron Devices

Traveling-wave devices (microwave and mmWave TWTs)  
Backward-wave devices (oscillators and amplifiers)  
Transit-time devices (klystrons, MBKs, EIOs/EIKs) 
Inductive output devices (IOTs)  
Crossed-field devices (e.g. magnetrons, oscillators and amplifiers)  
Fast-wave devices (e.g. gyrotrons, oscillators and amplifiers)  
Free electron lasers and masers, undulators  
High-power microwave / RF directed energy devices  
Triodes, tetrodes and pentodes
Plasma filled amplifiers and oscillators  
Novel spatially distributed electron beam devices  
Novel mm-Wave and Terahertz amplifiers and oscillators    
Plasma devices and thrusters  
Power switches  
Pulse compression devices

2. Emitter/Cathode Technologies and Emission Physics

Thermionic emitters (e.g. directly heated emitters, dispenser cathodes, scandate emitters)
Non-thermionic emitters (e.g. photocathodes, secondary emitters)
Field emitters/arrays (e.g. SiC nanowires)
Novel emitter materials and technologies (e.g. graphene)
Novel cathode design, fabrication and characterization
Accelerator emission physics (breakdown, halo, emittance)

3. Key Components, Tools, Technologies and new trends

Key components (e.g. guns, couplers, severs, circuits, vacuum windows, collectors)
Materials (e.g. dielectric and magnetic materials, coatings)
Metamaterial structures and designs
Analysis and computer modelling
Simulation/design tools (PIC, multi-physics)
RF breakdown
Linearity, intermodulation and noise
Thermal power management and control
Components/devices miniaturization
Advanced manufacturing technologies (e.g. additive manufacturing, laser ablation)
Measurements techniques and diagnostics
Sensors and detectors

4. Subsystems

Microwave and mm-Wave power modules
Linearizers
Electronic power conditioners, modulators, and supplies
Vacuum components and systems
Amplifier and antenna interfaces
Device and system integration
System performance and reliability

5. Systems and Applications

Wireless communication (e.g. future broadband technologies, THz wireless communication) 
Electric propulsion
Applications in medicine and industry 
Particle accelerators 
Nuclear fusion 
Materials processing and lithography 
Radar technologies and systems (e.g. space observation, long range radar) 
Electronic countermeasures 
High-power microwave systems 
X-Ray imaging 
Ultra-fast electron microscopy

6. Nano vacuum electronics 

Emerging material and structure for cathode 
Numerical simulation and modeling 
Negative workfunction cathode 
In-depth reliability study and aging mechanism 
Circuit primitive and applications 
Compact model