Patent ID: 7646352

Claim:
A dipole array antenna system, comprising: a transmitter dipole array including at least a first radiation element and a second radiation element coupled to a first transmission line, the first radiation element positioned on the first transmission line at a first distance from a signal input to the transmitter dipole array and the second radiation element positioned on the first transmission line at a second distance from the signal input, the second distance being larger than the first distance; and a receiver dipole array including at least a third radiation element and a fourth radiation element coupled to a second transmission line, radiation characteristics of the third radiation element and the fourth radiation element being substantially same as radiation characteristics of the first radiation element and the second radiation element, respectively, and the third radiation element positioned on the second transmission line at a third distance from a signal output from the receiver dipole array and the fourth radiation element positioned on the second transmission line at a fourth distance from the signal output, the third distance being larger than the fourth distance.