Patent ID: 6169910
Filing Date: 2001-01-02
Classification: G01S,H01Q

Abstract:
A microwave or millimeter wave radio frequency communication system comprising: a lens antenna having a dielectric material lens for focusing radio frequency signals, the lens antenna including an array of feed devices spaced about a periphery of the lens so as not to block radio frequency signals from passing through the lens from any direction; a first communication device communicatively connected to said antenna by information carrying signals sent from said first communication device to said antenna; and a plurality of second communication devices communicatively connected to said antenna by information carrying radio frequency signals which are simultaneously transmitted from the antenna to said plurality of second communication devices with the sending of said information carrying signals from said first communication device; wherein said antenna focusing the information carrying signals transmitted to the plurality of second communication devices into narrow beam information carrying radio frequency signals; information contained in said narrow beam information carrying radio frequency signals received by at least one of said plurality of second communication devices being contained in the information carrying signals sent from said first communication device to said antenna; and a lens antenna in a first cell of a cellular network reuses part of the frequency spectrum used by an antenna in an adjacent cell of the cellular network for transmission of narrow beam radio frequency signals within the first cell.