Multi-element antenna

Communications: directive radio wave systems and devices (e.g. – With particular circuit

Reexamination Certificate

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C342S029000, C342S073000, C342S074000, C342S075000, C342S080000, C342S147000, C342S149000, C342S368000, C342S374000, C343S749000, C343S872000, C343S7000MS

Reexamination Certificate

active

07868818

ABSTRACT:
An antenna is provided, in combination with an associated switch array, the antenna comprising a number of antenna elements mounted above a ground plane for providing coverage over a predetermined range of angles in azimuth using a number of beams. Each of the antenna elements is connected to a switch in the switch array and the switch array is operable to connect selected pairs of the antenna elements to a signal path to thereby generate each of the different beams, at the same time connecting unselected antenna elements to ground.

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