Engineering & Materials Science
Antennas
100%
Antenna arrays
35%
Millimeter waves
24%
Antenna feeders
24%
Transponders
19%
Lens antennas
16%
MIMO systems
16%
Radio frequency identification (RFID)
16%
Metals
13%
Waveguides
12%
Sensors
10%
Polarization
10%
Acoustic impedance
9%
Transmitters
9%
Intermodulation
9%
Bandwidth
9%
Polychlorinated biphenyls
8%
Lenses
8%
Modulators
8%
Microstrip antennas
8%
Frequency bands
8%
Cellular telephones
8%
Mobile computing
8%
Tuning
8%
Networks (circuits)
7%
Substrate integrated waveguides
7%
Frequency modulation
7%
Smartphones
7%
Mobile antennas
6%
Transceivers
6%
Phase shifters
6%
Antenna grounds
6%
Communication
6%
Directional patterns (antenna)
6%
Radiation
5%
Telephone sets
5%
Backscattering
5%
Radiators
5%
Wireless networks
5%
Physics & Astronomy
antennas
52%
millimeter waves
16%
antenna arrays
15%
antenna design
10%
transponders
8%
MIMO (control systems)
7%
waveguides
7%
communication
6%
local thermodynamic equilibrium
6%
transmitters
5%
lens antennas
5%
patch antennas
5%
radio frequencies
5%
