14.8 Waveguides
A waveguide is a special form of transmission line consisting of a hollow, metal tube. The tube wall provides...
Tag: Transmission lines
14.7 Impedance Transformation
Standing waves at the resonant frequency points of an open- or short-circuited transmission line produce unusual...
14.5 Long and Short Transmission Lines
In DC and low-frequency AC circuits, the characteristic impedance of parallel wires is usually ignored. This includes...
14.4 Finite-length Transmission Lines
A transmission line of infinite length is an interesting abstraction, but physically impossible. All transmission lines...
14.3 Characteristic Impedance in Transmission lines
The Parallel Wires of Infinite Length Suppose, though, that we had a set of parallel wires of infinite length, with no...
14.2 Circuits and the Speed of Light
Suppose we had a simple one-battery, one-lamp circuit controlled by a switch. When the switch is closed, the lamp...
14.1 A 50-Ohm Cable?
Early in my explorations of electricity, I came across a length of coaxial cable with a label of “50 ohms” printed...
