Ka Band Satellite Downlink Frequency

The rain attenuation in 20 2 ghz that needs to be supported for 99 95 availability is 14 5 db.

Ka band satellite downlink frequency.

X band eess 8025 8400 mhz used for payload data downlink by nearly all the eess satellites. Coordination in this frequency among eess satellites is becoming critical because the earth stations are concentrated in certain areas. Image 773 views 11 likes. Hylas 1 ka and ku band antennas.

Ka band 26 40 ghz communications satellites uplink in either the 27 5 ghz and 31 ghz bands and high resolution close range targeting radars on military aircraft. The commission proposes to permit geostationary orbit fixed satellite services to use the 17 3 17 8 ghz band for downlink operations subject to technical rules that would prevent harmful. Satellite technology is developing fast and the applications for satellite technology are increasing all the time. Image 755 views 7 likes.

The k a band pronounced as either kay ay band or ka band is a portion of the microwave part of the electromagnetic spectrum defined as frequencies in the range 26 5 40 gigahertz ghz i e. Ka band dishes can be much smaller and typically range from 60cm 1 2m 2 to 4 in diameter. In this article you will read about satellite frequency bands. The band is called k a short for k above because it is the upper part of the original nato k band which was split into.

C band satellite will usually will have 5 925 to 6 425 ghz frequency range in the uplink and 3 7 to 4 2 ghz frequency range in the downlink. Planned for use by eess and srs satellites with very large data rates requirements. The block diagram above shows the basic concept of the converter the local oscillator is generated from a 10mhz gps locked oscillator which is then multiplied up to 20ghz resulting in a dc to 2 ghz if. With the variety of satellite frequency bands that can be used designations have been developed so that they can be referred to easily.

The ka band k band above is primarily used for two way consumer broadband and military networks. Transmission power is much greater compared to the c x or ku band beams. The most popular frequency bands available on satellite are l band s band c band x band ku band k band and ka bands. Two diversity sites are located at a distance of 5 km both looking at an elevation of 62 degrees exactly southwards for a ka band satellite system with downlink at 20 2 ghz.

After careful study of the lnb design it may be useful to know that the lna stages should be useable at 24ghz. Image 1067 views 0 likes. Applications hylas 1 ka band antenna. In europe ku band downlink is used from 10 7 ghz to 12 75 ghz for direct broadcast satellite services such as astra.