Patent ID: 6445357
Filing Date: 2002-09-03
Classification: H01Q

Abstract:
An antenna driving circuit for connecting an antenna to two transmitters comprising:a combiner having a first input, a second input, a first output and a second output wherein the first input of the combiner is connected to a first transmitter and the second input of the combiner is connected to a second transmitter; a first power splitter wherein the input of the first power splitter is connected to the first output of the combiner and the output of the first power splitter is suitable for driving a first pair of dipole antenna arrays, the first pair of dipole antenna arrays being oriented in substantially opposite spatial directions; and a second power splitter wherein the input of the second power splitter is connected to the second output of the combiner and the output of the second power splitter is suitable for driving a second pair of dipole antenna arrays, the second pair of dipole antenna arrays being oriented in substantially different spatial directions from both of the spatial directions of the first pair of dipole antenna arrays; wherein the output of the first power splitter and the output of the second power splitter are suitable to drive the first and second pairs of dipole antenna arrays in two orthogonal modes.