An antenna system which operates over a wide spectrum of radio frequencies by utilizing a body of a vehicle as an antenna. The antenna system comprises a tuned impedance-matching coupler and a uniquely-configured floating, low-capacitance coaxial transmission line. In this arrangement, the outer conductor...http://www.google.ca/patents/US4751514?utm_source=gb-gplus-sharePatent US4751514 - Multi-frequency vehicular antenna system
