Before revision: Short circuited stub The input impedance of a lossless short circuited line is, where j is the imaginary unit , is the characteristic impedance of the line, is the phase constant of the line, and is the physical length of the line.
After revision: Short circuited stub The input impedance of a lossless short circuited line is, where ,() is the imaginary unit , is the characteristic impedance of the line, is the phase constant of the line, and is the physical length of the line.