millimeter waves
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millimeter waves — Electromagnetic radiation in the frequency range of 30 to 500 GHz with corresponding wavelengths of 10 to 0.6 mm … Aviation dictionary
Millimeter wave scanner — Active millimeter wave technology Active Millimeter Wave Unit A millimeter wave scanner is a whole–body imaging device used for detecting ob … Wikipedia
Combined Array for Research in Millimeter-wave Astronomy — The Combined Array for Research in Millimeter wave Astronomy (CARMA) is an astronomical instrument comprising 23 radio telescopes. These telescopes form an astronomical interferometer where all the signals are combined in a purpose built computer … Wikipedia
Microwave — This article is about the electromagnetic wave. For the cooking appliance, see Microwave oven. For other uses, see Microwaves (disambiguation). A microwave telecommunications tower on Wrights Hill in Wellington, New Zealand Microwaves, a subset… … Wikipedia
Extremely high frequency — Frequency range 30 to 300 GHz ITU Radio Band Numbers 1 2 3 4 5 6 7 8 9 10 … Wikipedia
Full body scanner — Backscatter x ray image of TSA Security Laboratory Director Susan Hallowell. A full body scanner is a device that creates an image of a person s nude body through their clothing to look for hidden objects without physically removing their clothes … Wikipedia
Metamaterial antenna — This Z antenna tested at the National Institute of Standards and Technology is smaller than a standard antenna with comparable properties. Its high efficiency is derived from the Z element inside the square that acts as a metamaterial, greatly… … Wikipedia
Nikolay Devyatkov — Nikolay Dmitrievich Devyatkov Born April 11, 1907 Vologda, Russian Empire Died February 1, 2001(2001 02 01) (aged 93) Mosc … Wikipedia
Horn antenna — Pyramidal microwave horn antenna, with a bandwidth of 0.8 to 18 GHz. A coaxial cable feedline attaches to the connector visible at top. This type is called a ridged horn; the curving fins visible inside the mouth of the horn increase the antenna… … Wikipedia
Active Denial System — Humvee with ADS mounted The Active Denial System (ADS) is a non lethal, directed energy weapon developed by the U.S. military.[1] It is a strong millimeter wave transmitter primarily used for crowd control (the goodbye effect [ … Wikipedia
Microwave transmission — The atmospheric attenuation of microwaves in dry air with a precipitable water vapor level of 0.001 mm. The downward spikes in the graph correspond to frequencies at which microwaves are absorbed more strongly, such as by oxygen molecules… … Wikipedia
