- Source: W band
The W band of the microwave part of the electromagnetic spectrum ranges from 75 to 110 GHz, wavelength ≈2.7–4 mm. It sits above the U.S. IEEE-designated V band (40–75 GHz) in frequency, and overlaps the NATO designated M band (60–100 GHz). The W band is used for satellite communications, millimeter-wave radar research, military radar targeting and tracking applications, and some non-military applications.
Radar
A number of passive millimeter-wave cameras for concealed weapons detection operate at 94 GHz. A frequency around 77 GHz is used for automotive cruise control radar. The atmospheric radio window at 94 GHz is used for imaging millimeter-wave radar applications in astronomy, defense, and security applications.
Heat ray
Less-than-lethal weaponry exists that uses millimeter waves to heat a thin layer of human skin to an intolerable temperature so as to make the targeted person move away. A two-second burst of the 95 GHz focused beam heats the skin to a temperature of 130 °F (54 °C) at a depth of 1⁄64 of an inch (0.40 mm). The United States Air Force and Marines are currently using this type of Active Denial System.
Communications
In terms of communications capability, W band offers high data rate throughput when used at high altitudes and in space. (The 71–76 GHz / 81–86 GHz segment of the W band is allocated by the International Telecommunication Union to satellite services.) Because of increasing spectrum and orbit congestion at lower frequencies, W-band satellite allocations are of increasing interest to commercial satellite operators, especially the Starlink satellite constellations which have implemented capabilities in these bands.
References
Further reading
5th Framework Programme Information Societies Technologies (IST) - Multifunctional Automotive Radar Network (RadarNet) [1]
Appleby, Roger; Anderton, Rupert N.; Thomson, Neil H.; Jack, James W. (2004). "The design of a real-time 94-GHZ passive millimetre-wave imager for helicopter operations". In Appleby, Roger; Chamberlain, J. Martyn; Krapels, Keith A. (eds.). Passive Millimetre-Wave and Terahertz Imaging and Technology. Vol. 5619. p. 38. doi:10.1117/12.581336.
Chen, Zhiming; Wang, Chun-Cheng; Yao, Hsin-Cheng; Heydari, Payam (2012). "A BiCMOS W-Band 2×2 Focal-Plane Array with On-Chip Antenna". IEEE Journal of Solid-State Circuits. 47 (10): 2355–2371. Bibcode:2012IJSSC..47.2355C. doi:10.1109/JSSC.2012.2209775.
Gilreath, Leland; Jain, Vipul; Heydari, Payam (2011). "Design and Analysis of a W-Band Si Ge Direct-Detection-Based Passive Imaging Receiver". IEEE Journal of Solid-State Circuits. 46 (10): 2240–2252. Bibcode:2011IJSSC..46.2240G. doi:10.1109/JSSC.2011.2162792.
External links
A cloud radar at 94 GHz
Kata Kunci Pencarian:
- Voodoo (grup musik)
- Wage Rudolf Soepratman
- Anak Band
- Linkin Park
- Seventeen (grup musik Indonesia)
- Grup vokal pria
- The Other Side of Down Asian Tour
- Swasti Sabdastantri
- NCT
- Daftar kata serapan dari bahasa Belanda dalam bahasa Indonesia
- W band
- W-inds
- W (duo)
- W.A.S.P. (band)
- Radio spectrum
- Microwave
- Dave Matthews Band bus incident
- Electromagnetic spectrum
- W^w^^w^w
- Jets to Brazil
Bandslam (2009)
Bioskop Online, bioskop21, BioskopKeren, Cinemaindo, Comedy, Dewanonton, Drakor ID, DrakorIndo, Drama, DramaQu, Dunia21, Family, Ganool, gudangmovie, gudangmovie21, IndoXX1, Indoxxi, KorDramas, LayarKaca21, Layarkaca21 INDOXXI, LK21 XXI, Music, Nonton drama, Nonton Movie, Romance, USA
Todd Graff
Trolls Band Together (2023)
Animation, Bioskop Online, BioskopKeren, Cinemaindo, Comedy, Dewanonton, Drakor ID, DrakorIndo, DramaQu, Dunia21, DutaFilm, Family, Fantasy, Ganool, gudangmovie, IndoXX1, Indoxxi, KorDramas, LayarKaca21, Layarkaca21 INDOXXI, LK21, LK21 XXI, Music, Nonton drama, Nonton Movie, Pahe.in, PusatFilm21, USA
Tim Heitz, Walt Dohrn
Eastern Bandits (2012)
Bioskop Online, BioskopKeren, Cinemaindo, Dewanonton, Drakor ID, DrakorIndo, Drama, DramaQu, Dunia21, DutaFilm, Ganool, gudangmovie, History, IndoXX1, Indoxxi, KorDramas, LayarKaca21, Layarkaca21 INDOXXI, LK21, LK21 XXI, Nonton drama, Nonton Movie, Pahe.in, PusatFilm21, China
Yang Shupeng
Dark Phoenix (2019)
Action, Adventure, Bioskop Online, BioskopKeren, Cinemaindo, Dewanonton, Drakor ID, DrakorIndo, DramaQu, Dunia21, DutaFilm, gudangmovie, IndoXX1, Indoxxi, KorDramas, LayarKaca21, Layarkaca21 INDOXXI, LK21, LK21 XXI, Nonton drama, Nonton Movie, Pahe.in, PusatFilm21, Science Fiction, USA
Simon Kinberg
Into the Wild (2007)
Adventure, Bioskop Online, bioskop21, BioskopKeren, Cinemaindo, Dewanonton, Drakor ID, DrakorIndo, Drama, Dunia21, DutaFilm, Ganool, gudangmovie, gudangmovie21, IndoXX1, Indoxxi, KorDramas, LayarKaca21, LK21, LK21 XXI, Nonton drama, Nonton Movie, Pahe.in, PusatFilm21, USA
Sean Penn
The Expendables (2010)
Action, Adventure, Bioskop Online, bioskop21, BioskopKeren, Dewanonton, Drakor ID, DrakorIndo, DramaQu, Dunia21, DutaFilm, Ganool, gudangmovie, gudangmovie21, IndoXX1, Indoxxi, KorDramas, LayarKaca21, Layarkaca21 INDOXXI, LK21, Nonton drama, Nonton Movie, Pahe.in, PusatFilm21, Thriller, Bulgaria, USA
Sylvester Stallone
No More Posts Available.
No more pages to load.
