Engineering & Materials Science
Acoustic impedance
16%
Acoustics
10%
Actuators
8%
Air
8%
Antenna arrays
23%
Antenna feeders
14%
Antenna grounds
9%
Antennas
100%
Automotive radar
28%
Bandpass filters
27%
Bandwidth
42%
Barium strontium titanate
8%
Butler matrix
10%
Capacitors
11%
Carrier concentration
8%
Cavity resonators
14%
Chalcogenides
9%
Communication
17%
Communication systems
10%
Condition monitoring
23%
Control systems
8%
Controllers
16%
Coplanar waveguides
9%
Costs
13%
Defects
9%
Detectors
8%
Doppler radar
9%
Electric lines
15%
Electric potential
24%
Electric power distribution
8%
Electric power systems
8%
Energy conservation
8%
Energy gap
11%
Energy storage
14%
Energy utilization
11%
Experiments
9%
Fabrication
12%
Failure analysis
10%
Fault detection
14%
Forward scattering
11%
Frequency bands
13%
Geometry
8%
Global positioning system
8%
Imaging techniques
23%
Insertion losses
18%
Ionosphere
19%
Lasers
9%
Metals
11%
Microbial fuel cells
8%
Micromachining
10%
Microstrip antennas
26%
Microwaves
33%
Millimeter waves
20%
Monitoring
19%
Monopole antennas
13%
Multistatic radars
8%
Navigation
20%
Networks (circuits)
11%
Neural networks
8%
Permittivity
9%
Phase change materials
10%
Phase shifters
8%
Photoresists
8%
Polarization
18%
Poles
11%
Power amplifiers
8%
Radar
87%
Radar imaging
16%
Radiation
13%
Radio transmission
9%
Rails
33%
Resonators
64%
Satellites
28%
Scanning
8%
Scattering
11%
Sensors
22%
Signal processing
8%
Simulators
11%
Sonar
8%
Students
8%
Substrates
16%
Supercapacitor
9%
Switches
20%
Synthetic aperture radar
27%
Target tracking
10%
Temperature
13%
Testing
8%
Thin films
16%
Topology
11%
Trajectories
10%
Transmitters
20%
Tuning
16%
Ultra-wideband (UWB)
12%
Uncertainty
9%
Varactors
8%
Waveguide filters
20%
Waveguides
39%
Wavelength
20%
Wind power
8%
Wind turbines
13%
Physics & Astronomy
antenna arrays
11%
antennas
42%
assimilation
5%
bandpass filters
18%
bandwidth
18%
barium titanates
5%
broadband
15%
cavities
8%
cavity resonators
7%
characterization
6%
clutter
7%
code division multiple access
14%
communication
6%
diplexers
8%
electromagnetism
7%
fabrication
6%
filters
33%
high gain
8%
high temperature superconductors
6%
imaging radar
7%
impedance
8%
insertion loss
9%
ionospheres
11%
ionospherics
20%
liquid metals
6%
low frequencies
6%
matrices
6%
meteoroid showers
5%
microstrip antennas
8%
microwave filters
7%
microwaves
24%
millimeter waves
9%
multistatic radar
5%
narrowband
5%
patch antennas
13%
performance
20%
permittivity
7%
phase change materials
5%
photonics
6%
polar regions
5%
poles
7%
printing
7%
propagation
5%
prototypes
5%
Q factors
7%
radar
34%
radar imagery
8%
receivers
7%
resonators
34%
rings
5%
satellite navigation systems
10%
sensors
10%
simulation
10%
slots
6%
strontium titanates
8%
switches
6%
synthetic aperture radar
8%
telecommunication
5%
thin films
11%
transmission lines
10%
transmitters
5%
traveling ionospheric disturbances
5%
tuning
8%
varactor diodes
7%
vehicles
7%
waveguide filters
9%
waveguides
21%
wavelengths
7%