Patent ID: 7724194
Filing Date: 2010-05-25
Classification: H01Q

Abstract:
1. A portable two-way communication device, comprising: a. a first antenna configured for operation at least in a first bandwidth disposed at a first end of the portable two-way communication device; b. a second antenna configured for operation at least in a second bandwidth disposed at a distal end of the portable two-way communication device; and c. at least one of a receiver and a transmitter coupled to both the first antenna and the second antenna; d. two passive transmission line matching circuits, with a first passive transmission line matching circuit coupling the at least one of the receiver and the transmitter to the first antenna and a second passive transmission line matching circuit coupling the at least one of the receiver and the transmitter to the second antenna; wherein each of the first antenna and the second antenna has associated therewith at least a nominal impedance and a loaded impedance; wherein when one of the first antenna and the second antenna is loaded, the first passive transmission line matching circuit and the second passive transmission line matching circuit are configured to become mismatched, thereby causing power flowing from the at least one of the receiver and the transmitter is passively directed to a lesser loaded antenna of the first antenna and the second antenna.