Ieee standard letter designations for radar-frequency bands pdf

In order to recognize and preserve accepted usage, this standard defines the letter band nomenclature to be used as a convenience for describing the frequency in which radar. Ieee standard letter designations for radarfrequency bands abstract. Frequency range wavelength eunatous ecm band to 250 mhz to 1. The nato m band is the obsolete designation given to the radio frequencies from 60 to 100 ghz equivalent to wavelengths between 5 and 3 mm during the cold war period. Radar systems operate in frequency bands that since world war ii have been identified by letter designations. Radar band letter designations from ieee standard 5212002. Each radar frequency band has its own particular characteristics. In 1984, the ieee microwave nerds agreed on the standard letter band designations shown in the table below, the first two columns of which you should commit to memory if you want to be taken seriously. After the war the codes were declassified and ka band and millimeter mm were added. A system introduction to microwave electronics chapter 1. Ieee 5212002 r2009 ieee standard letter designations for radarfrequency bands.

This standard relates the letter terms in common usage to the frequency. Ieee sa 5212002 ieee standard letter designations for radarfrequency bands, 2015. The standard letter designations for radarfrequency bands was first issued in 1976 and was written to remove the confusion that developed from the misapplication to radar of letter band designations of other microwave frequency users. To reaffirm ieee std 521 ieee standard letter designations for radar frequency bands 2. Ieee 5212019 ieee standard letter designations for radar frequency bands. Ieee aerospace and electronic systems society, ieee standard letter designations for radarfrequency bands, ieee std 5212002 revision of ieee std 5211984, 2003. This usage has continued throughout the years and is now an accepted practice of radar engineers. No change in purpose from the current standard is anticipated. Since 1992 frequency allocations, allotment and assignments are in line to nato joint civilmilitary frequency agreement njfa. The first ieee standard was published in 1976, then updated in 1984 and now exists as ieee standard 5212002. Ieee aerospace and electronic systems society, ieee standard letter designations for radar frequency bands, ieee std 5212002 revision of ieee std 5211984, 2003. Ansiieee 5212002 gost pdf,bs pdf,ansi pdf,api pdf,asme. Standard radar frequency letterband nomenclatureieee standard 5211984 band designator frequency rangeghz wavelength in free spacecm l band 1 to 2 30. Thus, an xband radar will be different from an sband radar.

The spectrum above 300 ghz is not currently regulated by most governments. Charter systems society aess and its activities should be. Military radar bands military radar band nomenclature, l, s, c, x, ku, and k bands originated during world war ii as a secret code so scientists and engineers could talk about frequencies without divulging them. Eunatous frequency bands encyclopedia article citizendium. Radar band letter designations from ieee standard 5212002 1 ghz 2 ghz. To reaffirm ieee std 686 standard radar definitions 3. Since world war ii, radar systems engineers have used letter designations as a short notation for describing the frequency band of operation. Ieee standard letter designations for radar frequency bands. Cognitive wireless ran medium access control mac and physical layer phy specifications. Letter terms in common usage are related to the frequency ranges that they represent in this standard. These letter designations were originally selected to describe the secret radar bands used in world war ii.

Ultra high frequency uhf is the itu designation for radio frequencies in the range between 300 megahertz mhz and 3 gigahertz ghz, also known as the decimetre band as the wavelengths range from one meter to one tenth of a meter one decimeter. Ieee standard letter designations for radar frequency bands 2142020 pdf. Invigorate the process for student participation in ieee radar conference. Estimation of angle glint for different radar targets. Other iso frequency band definitions do not precisely match the concurrent definitions of the ieee and itur. The letter designations are often used in this manner to indicate the particular nature of the radar, as it is influenced by its frequency. Neither the ieee nor the itur recognize the q band in their standards, which define the nomenclature of bands in the electromagnetic spectrum. Ieee 5212019 ieee standard letter designations for radarfrequency bands. Performing electronic countermeasures in the united states and canada, attachment 1,ecm frequency authorizations. Ieee standard 521 reaffirms the use of letter band designations for radar frequency bands. Radio frequency rf is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around 20 khz to around 300 ghz. Policies and procedures for operation in the bands that allow spectrum sharing where the communications devices may. The letter designations are assigned to frequency bands that are spaced at intervals of about an octave within the frequency range from.

Ieee std 5212002 ieee standard letter designations for radar frequency bands ieee standard 521 reaffirms the use of letter band designations for radar frequency bands. In merill skolniks radar handbook 3rd edition the author pleads for the older ieee standard letter designation for radarfrequency bands ieeestd. Standard letter designations for radar frequency bands afr 5544ar 10586opnavinst 3430. The 1984 revision defined the application of v and w to a portion of the.

It relates the letter designators in common usage to the frequency ranges that they represent. Pdfacrobat reader or word version doc document file size. The ieee standard designates 110300 ghz as the millimeterwave band, but in popular usage it is often defined as 30300 ghz. Radarfrequency letter designations are used for given reasons. Ieee, pronounced eyetriplee, stands for the institute of electrical and electronics engineers. Ieee 5212019 ieee standard letter designations for radar. To provide input to standards maintained by other parts of the ieee. Standard radar frequency letterband nomenclatureieee. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. There are vast differences in characteristics, applications, and environmental constraints that distinguish radars in the different bands. The standard letter designations for radar frequency bands was first issued in 1976 and was written to remove the confusion that developed from the misapplication to radar of letter band designations of other microwave frequency users. The institute of electrical and electronics engineers ieee has been maintaining the standard letter designations for radar frequency bands since 1976, which were revised most recently in 2002 see table b. The 1984 revision defined the application v and w to a. Over a period of time these frequencies and their associated letter band designations have been fixed by usage.

Radar frequency bands according to ieee standards awt global. Ieee standard for information technologytelecommunications and information exchange between systems wireless regional area networks wranspecific requirements part 22. The institute of electrical and electronics engineers ieee has been maintaining the standard letter designations for radarfrequency bands since 1976, which were revised most recently in 2002 see table b. Standard letter designations for radarfrequency bands replaced standard. Ieee sa 5212002 ieee standard letter designations for radarfrequency bands 2015 intext. These letter designations as shown as in the red scale of figure 1 were originally selected to describe the radar bands as used in world war ii. Standards for networking, electronics engineering standards. Ieee standard letter designations for radarfrequency bands designate a frequency bandfrom2to4ghzasansband. The separation between the bands, sometimes called guard bands, help prevent interference between adjacent bands, but these bands were established decades ago. Ieee standard letter designations for radar frequency bands 14022020 pdf. The radar letter designations are consistent with the recommended nomenclature of the. Ieee 5212002 r2009 ieee standard letter designations for. One system uses a more historically originated system of letters and is defined even as an ieee standard.

With continuing advances in communications technology and equipment, and the move toward. Radarfrequency letter designations are used for the following reasons. Ieee 5212019 ieee standard letter designations for. This standard relates the letter terms in common usage to the frequency ranges that they represent. The 1984 revision defined the application of v and w to a portion of the millimeter wave region while retaining the previous letter designators for frequencies. There are two different significant radar frequency letter band nomenclatures in use. Ieee and its members inspire a global community through ieee s highly cited publications, conferences, technology standards, and professional and educational activities.