Engineering & Materials Science
Antennas
100%
Waveguides
97%
Loop antennas
58%
Fiber optic sensors
55%
Circular waveguides
51%
Diaphragms
51%
Microstrip antennas
39%
Permittivity
35%
Communication systems
35%
Radio frequency identification (RFID)
34%
Microwaves
34%
Toll collection
32%
Antenna grounds
30%
Negative impedance converters
30%
Acoustic impedance
28%
Energy gap
26%
Acoustics
25%
Travel time
24%
Bandwidth
22%
Resonators
22%
Highway systems
22%
Global positioning system
20%
Launching
20%
Fabry-Perot interferometers
19%
Surface waves
19%
Vortex flow
19%
Photonic crystals
18%
Networks (circuits)
16%
Waveguide filters
16%
Single mode fibers
15%
Diffraction
15%
Wave transmission
15%
Angular momentum
15%
Radio links
14%
Electric network topology
14%
Electromagnetic fields
14%
Sensors
14%
Decision theory
14%
Phase shifters
13%
Multipath propagation
13%
Photonics
13%
Capacitance
13%
Fabrication
13%
Telemetering
12%
Phase shift
12%
Insertion losses
12%
Polarization
12%
Optical fibers
12%
Flanges
12%
Multiplexing
12%
Physics & Astronomy
diaphragms
39%
fiber optics
31%
sensors
28%
filters
25%
excitation
22%
cavities
21%
rays
20%
explosive devices
18%
resonators
17%
loop antennas
17%
patch antennas
17%
microstrip antennas
16%
permittivity
16%
photonics
16%
waveguides
15%
ring currents
15%
circular waveguides
15%
launchers
14%
impedance matching
14%
short circuits
13%
Fabry-Perot interferometers
13%
antennas
11%
destruction
11%
delivery
11%
simulation
10%
cones
10%
radio frequencies
10%
Raman spectroscopy
10%
cut-off
9%
characterization
9%
aluminum oxides
9%
microelectromechanical systems
9%
analogs
9%
velocity distribution
9%
impedance
8%
optical fibers
8%
interference
8%
multisensor fusion
8%
geometrical acoustics
8%
surface waves
8%
signal to noise ratios
8%
singular integral equations
7%
Helmholtz equations
7%
fabrication
7%
acoustics
6%
inductance
6%
microwave frequencies
6%
insertion loss
6%
ducts
5%
pulses
5%