Engineering & Materials Science
Acoustic impedance
17%
Acoustics
10%
Actuators
8%
Air
8%
Antenna arrays
23%
Antenna feeders
13%
Antenna grounds
10%
Antennas
100%
Automotive radar
8%
Bandpass filters
27%
Bandwidth
40%
Barium strontium titanate
9%
Braking
8%
Butler matrix
9%
Capacitors
11%
Cavity resonators
13%
Code division multiple access
8%
Communication
16%
Condition monitoring
24%
Controllers
15%
Coplanar waveguides
10%
Costs
12%
Decision making
7%
Defects
10%
Detectors
8%
Diffraction
7%
Doppler radar
8%
Electric lines
16%
Electric potential
21%
Energy conservation
8%
Energy gap
10%
Energy storage
9%
Energy utilization
10%
Experiments
8%
Fabrication
11%
Failure analysis
10%
Fault detection
15%
Forward scattering
11%
Frequency bands
12%
Geometry
7%
Global positioning system
7%
High temperature superconductors
7%
Human engineering
7%
Imaging techniques
15%
Insertion losses
16%
Ionosphere
8%
Lasers
7%
Metals
10%
Microbial fuel cells
9%
Micromachining
10%
Microstrip antennas
28%
Microstrip filters
7%
Microwaves
36%
Millimeter waves
20%
Monitoring
18%
Monopole antennas
15%
Multistatic radars
8%
Navigation
19%
Networks (circuits)
11%
Permittivity
10%
Photoresists
9%
Planning
7%
Polarization
15%
Poles
10%
Power amplifiers
9%
Radar
52%
Radar imaging
10%
Radiation
13%
Radio transmission
9%
Rails
32%
Rectangular waveguides
7%
Resonators
67%
Satellites
23%
Scattering
8%
Sensors
18%
Signal processing
7%
Simulators
10%
Slot antennas
7%
Sonar
8%
Speech recognition
7%
Students
9%
Substrates
16%
Supercapacitor
9%
Switches
18%
Synthetic aperture radar
24%
Target tracking
8%
Temperature
12%
Testing
7%
Thin films
18%
Topology
10%
Trajectories
10%
Transmitters
19%
Tuning
14%
Ultra-wideband (UWB)
12%
Uncertainty
9%
Varactors
9%
Waveguide filters
21%
Waveguides
35%
Wavelength
18%
Wind turbines
14%
Physics & Astronomy
amplifiers
5%
antenna arrays
10%
antennas
39%
assimilation
6%
bandpass filters
18%
bandwidth
16%
barium titanates
6%
broadband
14%
cavities
7%
cavity resonators
6%
characterization
5%
code division multiple access
16%
communication
5%
diplexers
8%
electromagnetism
6%
fabrication
6%
filters
33%
high gain
8%
high temperature superconductors
6%
impedance
9%
insertion loss
8%
ionospherics
8%
matrices
6%
micromachining
5%
microstrip antennas
9%
microwave filters
6%
microwaves
25%
millimeter waves
8%
monopole antennas
5%
narrowband
6%
patch antennas
15%
performance
18%
permittivity
8%
poles
7%
propagation
5%
prototypes
5%
Q factors
7%
radar
13%
receivers
5%
resonators
35%
rings
6%
satellite navigation systems
9%
sensors
8%
simulation
9%
slots
5%
strontium titanates
9%
switches
5%
synthetic aperture radar
6%
thin films
12%
transmission lines
11%
transmitters
5%
tuning
6%
varactor diodes
8%
waveguide filters
9%
waveguides
19%
wavelengths
7%