Patent ID: 6014112
Filing Date: 2000-01-11
Classification: H01Q

Abstract:
An antenna comprising:a board of insulating material;a transmission line formed by first and second metal patterns on opposite sides of the board that are in registration with each other;said first and second metal patterns having resonant quarter wave sections meeting at respective junctions, the quarter wave sections being formed by different widths of the first and second metal patterns;a separation line formed by a first metal strip on one side of said board that is connected to the junction of said quarter wave sections on that side of the board and a second metal strip on the other side of the board that is connected to the junction of said quarter wave section on said other side of said board, said first and second metal strips being in registration with each other;a first metal dipole element on said one side of said board that is parallel to said transmission line extending from the end of said first metal strip;a second metal dipole element on said other side of said that is parallel to said transmission line extending from the end of said second metal strip; andsaid first and second dipole elements extending in opposite directions.