Engineering & Materials Science
Antennas
100%
Scattering
51%
Millimeter waves
46%
Dielectric resonators
36%
Slot antennas
35%
Bandwidth
34%
Polarization
31%
Permittivity
23%
Waveguides
22%
Antenna arrays
18%
Radiation
18%
Calibration
17%
Antenna feeders
17%
Soil moisture
17%
Bandpass filters
17%
Rectangular waveguides
17%
Wavelength
17%
Radar imaging
16%
Acoustic impedance
14%
Global positioning system
14%
Microstrip antennas
13%
Mobile antennas
13%
System-in-package
12%
Insertion losses
11%
Substrates
10%
Antenna grounds
10%
Printed circuit boards
10%
Networks (circuits)
9%
Permittivity measurement
9%
Backscattering
9%
Silicon
8%
Surface waves
8%
Plasmonics
8%
Capacitors
8%
Radar
7%
Resonators
7%
Surface roughness
7%
Radar cross section
7%
Equivalent circuits
7%
Soils
7%
Temperature
6%
Wire
6%
Varactors
6%
Monopole antennas
6%
Directional patterns (antenna)
6%
Depolarization
6%
Ray tracing
6%
Forward scattering
6%
Communication systems
6%
Electric lines
6%
Physics & Astronomy
antennas
24%
broadband
20%
radio occultation
18%
antenna design
17%
bandwidth
14%
high gain
14%
waveguides
13%
beam splitters
12%
insertion loss
11%
chips
10%
millimeter waves
10%
sporadic E layer
9%
resonators
8%
slot antennas
8%
dielectric polarization
8%
impedance
7%
antenna arrays
7%
strip
7%
augmentation
7%
propagation
6%
rectangular waveguides
6%
extremely high frequencies
6%
polarization
6%
half spaces
6%
polaritons
5%
surface waves
5%
selectivity
5%
navigation
5%
reflectance
5%
Earth & Environmental Sciences
radio
25%
scattering
23%
GPS
19%
SIR
15%
ray tracing
13%
backscatter
13%
radar
12%
vegetation
12%
calibration
11%
COSMIC
10%
soybean
9%
soil moisture
8%
particle
8%
FORMOSAT
8%
atmosphere
7%
induced polarization
7%
scatterometer
6%
weather
5%
forecast
5%
stem
5%
simulation
5%