The antenna plays a crucial role in the use of a radio because without it no transmission or reception is possible.
RF Toolbox is a programme for designing an antenna. It includes all information about the design of dipole, fat dipole, long yagi, Super J-pole, log periodic, cubic Quad, vertical, helical antennas. With this tool, you can calculate several settings like impedance, noise, wire inductance, transmission line, etc. It requires knowledge in electronic to use it properly.