The Q band is a range of frequencies contained in the microwave region of the electromagnetic spectrum. Common usage places this range between 33 and 50 GHz, but may vary depending on the source using the term.[1][2] The foregoing range corresponds to the recommended frequency band of operation of WR22 waveguides. These frequencies are equivalent to wavelengths between 6 mm and 9.1 mm in air/vacuum. The Q band is in the EHF range of the radio spectrum.
The term "Q band" does not have a consistently precise usage in the technical literature, but tends to be a concurrent subset of both the IEEE designated Ka band (26.5–40 GHz) and V band (40–75 GHz). Neither the IEEE nor the ITU-R recognize the Q band in their standards, which define the nomenclature of bands in the electromagnetic spectrum.[3][4] The ISO recognizes the Q band; however, the range therefore defined is 36 to 46 GHz. Other ISO frequency band definitions do not precisely match the concurrent definitions of the IEEE and ITU-R.[5]
The Q band is mainly used for satellite communications, terrestrial microwave communications and for radio astronomy studies such as the QUIET telescope. It is also used in automotive radar and in radar investigating the properties of the Earth's surface.[6]
Referencesedit
^"Millimeter Wave Propagation: Spectrum Management Implications" (PDF). Federal Communications Commission, Office Of Engineering And Technology, Bulletin Number 70. July 1997. Retrieved September 10, 2016.
^"Memorandum Opinion And Order, In the Matter of Lockheed Martin Corporation, Application for Review, Fee Control Number 9709298210183001, FCC 09-118" (PDF). Federal Communications Commission. December 31, 2009. Retrieved September 10, 2016.
^521-2002 - IEEE Standard Letter Designations for Radar-Frequency Bands. IEEE. 2003-01-14. doi:10.1109/IEEESTD.2003.94224. ISBN978-0-7381-3355-3.
^"V.431 : Nomenclature of the frequency and wavelength bands used in telecommunications". www.itu.int. International Telecommunication Union. Retrieved September 10, 2016.
^"ISO 21348:2007 - Space environment (natural and artificial) -- Process for determining solar irradiances". ISO. Retrieved 2016-09-10.
^Atanassov, VB and Balan, MG and Haimov, SJ and Kulemin, GP and Michalev, MA and Mladenov, L.H. and Pedenko, Y.A. and Razskazovsky, VB and Savchenko, AK and Vasilev, VL (1990). "Experimental study of nonstationary X-and Q-band radar backscattering from the sea surface". IEE Proceedings F - Radar and Signal Processing. 137 (2): 118–124. doi:10.1049/ip-f-2.1990.0017.{{cite journal}}: CS1 maint: multiple names: authors list (link)
January 01, 1970
band, range, frequencies, contained, microwave, region, electromagnetic, spectrum, common, usage, places, this, range, between, vary, depending, source, using, term, foregoing, range, corresponds, recommended, frequency, band, operation, wr22, waveguides, thes. The Q band is a range of frequencies contained in the microwave region of the electromagnetic spectrum Common usage places this range between 33 and 50 GHz but may vary depending on the source using the term 1 2 The foregoing range corresponds to the recommended frequency band of operation of WR22 waveguides These frequencies are equivalent to wavelengths between 6 mm and 9 1 mm in air vacuum The Q band is in the EHF range of the radio spectrum Waveguide Q bandFrequency range33 to 50 GHzRelated bandsKa V bands IEEE K L bands NATO SHF EHF ITU The term Q band does not have a consistently precise usage in the technical literature but tends to be a concurrent subset of both the IEEE designated Ka band 26 5 40 GHz and V band 40 75 GHz Neither the IEEE nor the ITU R recognize the Q band in their standards which define the nomenclature of bands in the electromagnetic spectrum 3 4 The ISO recognizes the Q band however the range therefore defined is 36 to 46 GHz Other ISO frequency band definitions do not precisely match the concurrent definitions of the IEEE and ITU R 5 The Q band is mainly used for satellite communications terrestrial microwave communications and for radio astronomy studies such as the QUIET telescope It is also used in automotive radar and in radar investigating the properties of the Earth s surface 6 References edit Millimeter Wave Propagation Spectrum Management Implications PDF Federal Communications Commission Office Of Engineering And Technology Bulletin Number 70 July 1997 Retrieved September 10 2016 Memorandum Opinion And Order In the Matter of Lockheed Martin Corporation Application for Review Fee Control Number 9709298210183001 FCC 09 118 PDF Federal Communications Commission December 31 2009 Retrieved September 10 2016 521 2002 IEEE Standard Letter Designations for Radar Frequency Bands IEEE 2003 01 14 doi 10 1109 IEEESTD 2003 94224 ISBN 978 0 7381 3355 3 V 431 Nomenclature of the frequency and wavelength bands used in telecommunications www itu int International Telecommunication Union Retrieved September 10 2016 ISO 21348 2007 Space environment natural and artificial Process for determining solar irradiances ISO Retrieved 2016 09 10 Atanassov VB and Balan MG and Haimov SJ and Kulemin GP and Michalev MA and Mladenov L H and Pedenko Y A and Razskazovsky VB and Savchenko AK and Vasilev VL 1990 Experimental study of nonstationary X and Q band radar backscattering from the sea surface IEE Proceedings F Radar and Signal Processing 137 2 118 124 doi 10 1049 ip f 2 1990 0017 a href Template Cite journal html title Template Cite journal cite journal a CS1 maint multiple names authors list link Retrieved from https en wikipedia org w index php title Q band amp oldid 1075195583, wikipedia, wiki, book, books, library,
