Patent ID: 7502764
Filing Date: 2009-03-10
Classification: H01Q

Abstract:
1. An array antenna having a sofa structure with irregular array spacing, comprising: a plurality of radiation means having an inclined angle based on a horizontal plane and arranged with irregular array spacing for radiating and receiving an radio wave; a plurality of phase shifting means for amplifying radiation signals radiated from the plurality of radiation means and receiving signals received from the plurality of radiation means, and controlling phases of the radiation signals and the receiving signals; and radio wave signal coupling means for dividing a transmitting signal to the radiation signals, transferring the divided radiation signals to the plurality of phase shifting means and coupling the receiving signals from the plurality of phase shifting means, wherein the radiation means are connected to the radio wave signal coupling means through a plurality of coaxial cables, and each of the coaxial cables having a predetermined length determined based on an array space between a m where L