Microwave
Microwave was used during World War II in military applications, and because it was successful in that environment, it was introduced into commercial communications. Microwave was deployed in the PSTN as a replacement for coaxial cable in the late 1940s.
As mentioned earlier, twisted-pair and coax both face limitations because of the frequency spectrum and the manner in which they are deployed. But microwave promises to have a much brighter future than twisted-pair on coax. Many locations cannot be cost-effectively cabled by using wires (for example, the Sahara, the Amazon, places where buildings are on mountaintops, and villages separated by valleys), and this is where microwave can shine.
Characteristics of Microwave
Microwave is ...
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