S band

frequency band

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Last updated

July 13, 2026

Quick Summary

The S-band is a radio frequency band that operates between 1550 and 5200 megahertz. This band is primarily utilized for aircraft and spacecraft communication, as well as for radar transmission.1

Satellite communication, a key application of radio frequencies, involves using artificial satellites to establish communication links across Earth. These satellites relay voice, video, and data signals globally. The development of satellite communication has a rich history, with early concepts dating back to the 19th century and practical proposals in the mid-20th century. Modern satellite technology enables a wide range of services, including telecommunications, broadcasting, and data communications.2

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radar
Airport surveillance radar
9 GHz (within the S band). Its klystron transmitter has a peak power of 1.3 megawatts, a pulse width of 1 microsecond, and an antenna with a horizontal beamwidth of 1.4 degrees that rotates at 12.5 revolutions per minute (4.8-second rotation period).
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9 GHz (within the S band). Its klystron transmitter has a peak power of 1.3 megawatts, a pulse width of 1 microsecond, and an antenna with a horizontal beamwidth of 1.4 degrees that rotates at 12.5 revolutions per minute (4.8-second rotation period).
Read More