Patent ID: 7965238

Claim:
A wide band antenna compatible with a plurality of frequencies including an orthogonal planar monopole antenna structure which has wide band characteristic to cover desired frequencies and suppress interfering frequency band, comprising: a plurality of orthogonal conductors, each of the orthogonal conductors including either two wire conductors intersecting and orthogonal to each other, or two plate conductors intersecting and orthogonal to each other and arranged vertically to a horizontal plane; a coupling conductor configured to electrically couple two immediately adjacent orthogonal conductors; and a feeder configured to electrically couple one of the orthogonal conductors with a feeder part capable of feeding the one of the orthogonal conductor, wherein the orthogonal conductors are concatenated sequentially by the coupling conductor, and wherein the coupling conductor is arranged substantially linearly along a central axis of the two immediately adjacent orthogonal conductors.