Miniature multi-band whip antennas designed using genetic algorithms with application to vehicular communication systems

A new technique has been developed and successfully applied to design miniature multi-band whip-type monopole antennas. A genetic algorithm was used to achieve a size reduction of over 30% while simultaneously optimizing for multi-band operation without the need for traps. Two examples were presented including a miniature dual-band 900 MHz and 1800 MHz monopole and a miniature tri-band 30 MHz, 80 MHz, and 108 MHz VHF whip antenna.