Wave Guide
A waveguide is a hollow metallic conductor with a circular or square cross-section. The RF signal travels along the inside of the tube, guided by its size and shape, similar to the way sound travels in a tube. The metallic construction of the wave guide keeps it from radiating energy outwards and also prevents unwanted energy from entering the waveguide.
A waveguide is considered an unbalanced transmission line.
Read more about this topic: Feed Line
Famous quotes containing the words wave and/or guide:
“I don’t know a great deal about life in Washington for women—I spent a summer there once working in the White House, and my main memories of the experience have to do with a very bad permanent wave I have always been convinced kept me from having a meaningful relationship with President Kennedy ...”
—Nora Ephron (b. 1941)
“The Indian attitude toward the land was expressed by a Crow named Curly: “The soil you see is not ordinary soil—it is the dust of the blood, the flesh, and the bones of our ancestors. You will have to dig down to find Nature’s earth, for the upper portion is Crow, my blood and my dead. I do not want to give it up.””
—For the State of Montana, U.S. public relief program. Montana: A State Guide Book (The WPA Guide to Montana)