21. He was the General Chairman for the 1987 IEEE Microwave and Millimeter Wave Monolithic Circuits Symposium. 22. Two models are being developed of the Passive Millimeter Wave Imager, a creation of Massachusetts-based Millimetrix Corp. 23. This polycrystalline ceramic is a type of dielectric resonator material commonly used in microwaves and millimeter waves . 24. Frequencies in millimeter wave range are absorbed in the topmost layer of skin, rich on thermal sensors. 25. The Transportation Security Administration ( TSA ) installed a full-body millimeter wave scanner at the airport in October. 26. According to ProPublica, the Detroit Metropolitan Airport uses " millimeter wave " body scanners and not X-ray backscatter. 27. While slowly descending, the submunition rotates, scanning the area below with an infra-red sensor and a millimeter wave radar. 28. Millimeter waves make up a narrow band of the electromagnetic spectrum, with wavelengths between 1 millimeter and 1 centimeter.29. SiBEAM was founded to commercialize pioneering millimeter wave wireless technology developed at the labs of University of California, Berkeley. 30. The V band is not heavily used, except for millimeter wave radar research and other kinds of scientific research.