Airport Passenger Screening Using Millimeter Wave Machines Compliance with Guidelines (2017) / Chapter Skim
Currently Skimming:
Appendix B: Glossary, Acronyms, and Abbreviations
Appendix B: Glossary, Acronyms, and Abbreviations
Pages 140-143
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 140... ...
The time duration could be source related (e.g., the source repetition period) or use related (e.g., the averaging time specified in exposure guidelines)
|
From page 141... ...
The ratio of pulse duration to the pulse period of a periodic pulse train. Also, may be a measure of the temporal transmission characteristic of an intermittently transmitting radio frequency source, such as a paging antenna, by dividing average transmission duration by the average period for transmissions.
|
From page 142... ...
The near-field region is further subdivided into the reactive near-field region, which is closest to the radiating structure and contains most or nearly all of the stored energy, and the radiating near-field region where the radiation field predominates over the reactive field but lacks substantial plane-wave character and is complicated in structure. For most antennas, the outer boundary of the reactive near-field region is commonly taken to exist at a distance of one-half wavelength from the antenna surface.14 Plane-wave equivalent.
|
From page 143... ...
an incremental mass contained in a volume element of dielectric materials, such as biological tissues. SAR is usually expressed in terms of SI units of watts per kilogram (W/kg)
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.