Millimeter-Wave and Terahertz Systems

There are few examples of mass produced MMW radars used for either commercial or military applications. An exception is the US Army s Longbow Apache attack helicopter that is equipped with the Northrop Grumman MMW Longbow radar. The Longbow fire control radar incorporates an integrated radar frequency interferometer for passive location 

The most common application of MMW systems to security needs is the MMW radiometric imager. Systems of this type are very useful because of their ability to detect a variety of concealed weapons hidden by clothing. Millivision Technologies of South Deerfield, MA has been a leader in this field by developing a family of imagers that operate in the 94 GHz atmospheric window and that use a superheterodyne receiver 

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LeSurf, J. C. G. (1990). Millimeter-Wave Optics, Devices, and Systems. Hilger, Bristol. LeSurf, J. C. G. (1993). Gaussian Beam Mode Optics for Millimeter-Wave and Terahertz Systems. Int. Soc. Opt. Eng., Bellingham, WA. 

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