Electrical Engineering

The Columbia Encyclopedia, 6th ed. A Dictionary of Earth Sciences Further reading

microwave

The Columbia Encyclopedia, 6th ed. | 2008 | Copyright

microwave electromagnetic wave having a frequency range from 1,000 megahertz (MHz) to 300,000 MHz, corresponding to a wavelength range from 300 mm (about 12 in.) to 1 mm (about 0.04 in.). Like light waves, microwaves travel essentially in straight lines. They are used in radar, in communications links spanning moderate distances, and in other applications, such as microwave ovens . The equipment used to generate, process, and transmit microwaves is in many respects different from that used with lower frequency radio waves. See waveguide ; magnetron .

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microwave

A Dictionary of Earth Sciences | 1999 | | Copyright

microwave Electromagnetic radiation which has a wavelength between 100 μm and 30 cm and frequencies between 1 GHz and 300 GHz. Microwaves lie between infrared and radiowaves. See also PASSIVE MICROWAVE.

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AILSA ALLABY and MICHAEL ALLABY. "microwave." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 11 Feb. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "microwave." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (February 11, 2012). http://www.encyclopedia.com/doc/1O13-microwave.html

AILSA ALLABY and MICHAEL ALLABY. "microwave." A Dictionary of Earth Sciences. 1999. Retrieved February 11, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-microwave.html

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Free newspaper and magazine articles

	The Microwave Processing of Foods. Magazine article from: Food Trade Review; 3/1/2006
	Microwaves more versatile today; bring opportunity Magazine article from: Automatic Merchandiser; 5/1/1995
	Microwave enhanced foaming of carbon black filled polypropylene.(Report) Magazine article from: Cellular Polymers; 7/1/2011