Microwave transmission - Microwave transmission Microwaves...

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Microwave transmission Microwaves are electromagnetic waves having frequencies between 1 and 300 GHz. Microwaves are unidirectional. When an antenna transmits microwave waves, they can be narrowly focused; this means that the sending and receiving antennas need to be aligned. Microwave propagation is line-of-sight. Since the towers with the mounted antennas need to be in direct sight of each other, towers that are far apart need to be very tall. Repeaters are often needed for long-distance communication. Very high-frequency microwaves cannot penetrate walls. Microwave can be used to provide high speed transmission of both voice and digital signals. Microwave communication can take two forms: terrestrial (ground) links and satellite links. The frequencies and technologies employed by these two forms are similar, though distinct differences exist between them. Terrestrial Microwave Terrestrial microwaves use Earth-based transmitters and receivers, sending data from one microwave station to another. Terrestrial microwaves use frequencies in the low- gigahertz
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  • Spring '13
  • nmnm
  • Wireless network, Electromagnetic spectrum, microwave, Satellite Links

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