a) A dipole antenna is 1m long and is fed with a current of magnitude 2A. Identify the type of dipole antenna, if used at a frequency of 540 kHz (lowest AM frequency). Also calculate the radiated power of the antenna at this frequency. (6 Marks)
b) A satellite communication system uses reflector antenna with gain G = 120 and the efficiency is 80%. Assume the frequency of operation is 1.2 GHz find the maximum effective aperture of the antenna (Aemax)