Physics & Astronomy
traveling wave amplifiers
77%
gyroscopes
71%
electron beams
65%
corrugated waveguides
49%
cusps
47%
oscillators
45%
electron guns
38%
backward waves
36%
broadband
36%
output
34%
millimeter waves
30%
microwaves
29%
interactions
27%
simulation
24%
amplifiers
22%
couplers
19%
bandwidth
18%
harmonics
15%
frequency ranges
14%
accumulators
14%
wave interaction
14%
pulse compression
12%
superhigh frequencies
12%
cavities
11%
waveguides
11%
radiation
10%
recovery
10%
pulses
9%
electric potential
8%
performance
8%
vacuum
8%
compressors
7%
electrons
7%
electromagnetic radiation
6%
free electron lasers
6%
magnetic fields
6%
optimization
6%
directivity
5%
microwave coupling
5%
manufacturing
5%
plasma interaction experiment
5%
current density
5%
traveling wave tubes
5%
orbits
5%
energy
5%
angular momentum
5%
circular waveguides
5%
free electrons
5%
electrodes
5%
cells
5%
Engineering & Materials Science
Electron beams
100%
Waveguides
58%
Electron guns
40%
Millimeter waves
38%
Microwaves
36%
Radiation
17%
Circular waveguides
14%
Pulse compression
13%
Vacuum
12%
Frequency bands
12%
Computer simulation
12%
Wigglers
12%
Experiments
12%
3D printers
11%
Electrons
10%
Slow wave structures
10%
Periodic structures
10%
Pulse repetition rate
10%
Magnetic fields
10%
Tuning
8%
Current density
8%
Multilayers
7%
Amplification
7%
Plasmas
7%
Angular momentum
7%
Submillimeter waves
7%
Networks (circuits)
7%
Klystrons
6%
Orbits
6%
Masers
6%
Electric potential
6%
Cyclotrons
5%
Radar
5%
Helical waveguides
5%
Demonstrations
5%
Terahertz waves
5%
Free electron lasers
5%
Surface plasmons
5%
