14 Jun 2018

What are Microwaves and their Applications (Uses) in various fields

What are Microwaves (Introduction) 

Today we will understand what are different applications of microwaves, but before knowing applications of microwaves, I would like to tell you what are microwave? Microwaves are Electromagnetic Waves (EM) having frequencies in the range from 1 GHz to 1000 GHz.

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To give you an idea, it is important to understand that signals from AM radio stations are at 1 MHZ,
And for FM radio stations at 100 MHZ.
Here we are dealing with 1 GHz to 1,000 GHz of range.
These are called as microwaves because the word micro comes from the word tiny (small).

So what is small here, small here is the 'Wavelength'. Actually the wavelength of microwaves is 1 foot or less that is the wavelength is less than 30.5 cms which is nearly equals to 1 foot. And if you convert this wavelength into frequency then it would approximately be equal to 1 Gigahertz.
So all the frequencies that fall between 1 gigahertz and 1000 gigahertz are microwaves.
Now let's discuss the applications of microwaves. 

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#Microwaves Properties and Advantages (Benefits)

Applications (Uses) of Microwaves

Microwaves are used in various fields of our life. So let's discuss various applications of microwave here one by one-

Microwaves in Telecommunication

#Space communication (earth to space and space to earth)
#Intercontinental telephone and TV
#Telecommunication link for Railways

Industrial Applications of Microwaves

In industries we use microwaves because of its heating property, we know that microwaves have the capability to heat-up the things. Microwaves find applications in industries in the following areas-

#Food Processing industries
#Microwave oven (2.45 gigahertz, 600 watt)
#Plastics industries, chemical industries, rubber industries, forest product based industries.
#Drying grains, pharmaceuticals, textile industries, leather industries etc.

Medical Applications of Microwaves in medical field

#Microwaves are used in various Diagnostic and therapeutic purposes
#Deep electromagnetic heating for treating cancer
#Monitoring Heartbeat and detecting lung water
#Hyperthermia for cancer therapy
#Diathermy for localized superficial heating.

Applications of Microwaves in Defense

In defense the main use of microwaves is in radars. Radar stands for 'Radio Detection and Ranging'. 
radars can be used for the following purposes in the field of Defense
#To Track and guide missiles 
#To detect aircrafts and other flying objects
#To calculate the distance of objects and to know the speed of moving objects etc.

Miscellaneous Applications of Microwaves

 Microwaves are used in-
#Air traffic control (ATC)
#Police speed detectors
#Garage door openers
#Burglar alarms
#Mining Works, tunneling, breaking and boring works of rocks, concrete etc.
#Observing and analyzing weather patterns.
#Creating microwave devices
#Spread spectrum systems

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