Patent ID: 7312751

Claim:
A phased array antenna system comprising: a first antenna element adapted to provide a first received signal in response to a radio signal; a second antenna element adapted to provide a second received signal in response to the radio signal, wherein the second antenna element is rotated approximately 180 degrees in relation to the first antenna element; a first amplifier adapted to amplify the first received signal to provide a first amplified signal having a bandwidth greater than one octave and having a first undesired component introduced by the first amplifier; a second amplifier adapted to amplify the second received signal to provide a second amplified signal having a bandwidth greater than one octave and having a second undesired component introduced by the second amplifier; a first phase shifter adapted to adjust a phase of the first amplified signal by a first phase amount to provide a first output signal; a second phase shifter adapted to adjust a phase of the second amplified signal by a second phase amount to provide a second output signal; and a power combiner adapted to combine the first and second output signals to provide a combined signal, wherein the first and second undesired components are suppressed in the combined signal relative to the first and second amplified signals.