Antenna and diversity techniques for broadcast reception in vehicles

In recent years, powerful active windshield antennas have been developed, and different design principles of active rear window antennas including the use of the heater structure have been realized. With these basic antenna principles an equivalent or even superior performance compared to the rod antenna is obtained both for horizontally and vertically polarized FM waves. Multiple antenna diversity techniques for FM reception are also discussed, with attention given to a fast operating diversity processor for all kinds of distortions and multiple diversity antennas densely packed on a window. Finally, TV reception in the VHF range and UHF range is discussed.<>