Digital antenna for receiving digital television signals, is assembled in mobile unit and is controlled by tuner such that band width range of received digital television signals are automatically converted

摘要

The digital antenna is assembled in a mobile unit and is controlled by a tuner such that the band width range of received digital television signals is automatically converted. A substrate (1) is provided with a plate with a metallic earthing surface (11) and two free space surfaces (16,17) available on the same side as the earthing surface. The received digital television signal is received over an input end of the control and released on a microstrip line over an output end.