Controling antennas involves superimposing parasitic signal transmitted by second antenna group on unmodulated signal with amplitude between parasitic signal and signal from first group

摘要

The method involves transmitting a modulated signal from a first antenna group (4) while the antennas of a second group (6) transmit a parasitic signal modulated in the same way but of smaller amplitude. An unmodulated signal has an amplitude between those of the parasitic signal and of the signal transmitted by the first group and has the parasitic signal superimposed upon it. Independent claims are also included for the following: a device for controling antennas and a remote control system for access to a vehicle.