Patent ID: 7433647

Claim:
An antenna coupler for a wireless communication system in a vehicle for coupling a transmit signal source to a plurality of antennas arranged within said vehicle, said antenna coupler comprising: a first saturable reactor having a first load winding and a first control winding wound on a first saturable core, said first load winding coupling said signal source to a first antenna; a first current source coupled to said first control winding for providing a selected current to said first control winding; a second saturable reactor having a second load winding and a second control winding wound on a second saturable core, said second load winding coupling said signal source to a second antenna; a second current source coupled to said second control winding for providing a selected current to said second control winding; and a controller coupled to said first and second current sources for commanding said first and second selected currents to selectably attenuate or non-attenuate a transmit signal from said transmit signal source to each respective antenna.