Engineering & Materials Science
Acoustic surface wave devices
8%
Air
15%
Antennas
20%
Asphalt
23%
Asphalt pavements
39%
Calibration
27%
Cavity resonators
9%
Cesium
7%
Clocks
13%
Computer hardware
6%
Continuous wave radar
28%
Core samples
22%
Costs
7%
Data acquisition
8%
Dielectric resonators
13%
Discrete Fourier transforms
11%
Doppler radar
27%
Electric network analyzers
18%
Electromagnetic fields
7%
Electronic equipment
8%
Experiments
10%
Frequency stability
6%
Frequency standards
7%
Ground penetrating radar systems
35%
Hydrogen masers
8%
Insertion losses
21%
Low noise amplifiers
12%
Microwave resonators
8%
Microwaves
47%
Military radar
18%
Monitoring
11%
Pavements
70%
Permittivity
64%
Plastic sheets
10%
Power converters
10%
Radar
100%
Radar countermeasures
18%
Radar signal processing
15%
Radio receivers
12%
Reflectometers
7%
Resonators
32%
Road construction
9%
Satellites
16%
Scanning antennas
16%
Sensors
10%
Signal detection
23%
Surveying
12%
Telecommunication traffic
21%
Timing circuits
16%
Torque
15%
Physics & Astronomy
air
6%
amplifiers
8%
analyzers
9%
antennas
18%
asphalt
14%
audio frequencies
14%
breathing
9%
broadband
14%
coils
8%
Doppler radar
33%
down-converters
16%
electrocardiography
5%
electromagnetic fields
8%
evaluation
13%
ground penetrating radar
33%
hardware
9%
installing
9%
logic
10%
low noise
10%
microwaves
14%
plastics
8%
police
7%
power supplies
21%
pulse rate
5%
pulses
10%
radar
29%
radio frequencies
17%
requirements
7%
respiration
10%
roads
22%
rocks
20%
rooms
19%
scanning
6%
sensors
12%
signal transmission
12%
slabs
9%
square waves
12%
surface layers
9%
transformers
22%
walking
5%
Chemical Compounds
Application
9%
Communication
9%
Dielectric Constant
19%
Dielectric Material
18%
Frequency Standard
19%
Homogeneity
9%
Hydrogen
5%
Microwave
8%
Permittivity
23%
Purity
5%
Quartz
9%
Reflection
8%
Resonance
8%
Simulation
6%
Surface
16%
Wave
19%