Microwaves Flashcards
It is a type of electromagnetic wave, and is a short-wavelength Radio Wave having frequencies in the Gigahertz (GHz) range.
Microwave
What is the Wavelength of a Microwave?
0.001mm - 0.3mm
What is the Frequency of a Microwave?
300MHz - 300GHz
Who discovered or predicted the Microwave?
James Clerk Maxwell
When was the Microwave discovered or predicted?
1865
Who proved the Microwaves existence?
Heinrich Hertz
When was the Microwave’s existence proven?
1888
How did Heinrich Hertz demonstrate the existence of Microwaves (and Radio Waves)?
By generating Radio Waves using the primitive spark gap radio transmitter.
The phenomenon of how a wave interacts with other waves or with an obstacle.
Wave Effects
When the microwave is encountering impedance mismatch under electric permittivity or magnetic permeability.
Reflection
The bending of microwaves due to external factors such as the medium the wave travels through, air pressure, and humidity.
Refraction
The diffraction grating allows the slits to act as sources of radiation. At some distance away these sources interfere with each other.
Diffraction
What devices utilize Microwaves?
Microwave Ovens, Cellphones, Radars, Satellites, Local Microwave Hyperthermia, Thermal Ablation, Medical Diathermy
Why are Microwaves important?
Because of it’s use in Communication Technology, Cooking, and Medical Applications.
What is a magnetron?
it is a high-vacuum tube containing a cathode and anode.
