4.27. A resonant center-fed dipole is connected to a 50-ohm line. It is desired to maintain the input VSWR = 2. 001 (a) What should the largest input resistance of the dipole be to maintain the VSWR = 2? (b) What should the length (in wavelengths) of the dipole be to meet the specification? (c) What is the radiation resistance of the dipole?