Patent ID: 7064712
Filing Date: 2006-06-20
Classification: H01Q

Abstract:
1. A multilayered slot-coupled antenna device, comprising in sequence: a) an antenna element; b) a first dielectric layer; c) a ground plane having first and second coupling slots formed therein, the coupling slots comprising elongate apertures spaced apart and extending along a common axis; d) a second dielectric layer; and e) first and second feed lines connected to a signal-feed port through a power divider, the first feed line having a first line portion orthogonally crossing the first coupling slot in a first direction, the second feed line having a second line portion orthogonally crossing the second coupling slot in a second direction opposite to the first direction, the power divider being operative for substantially equally dividing a feed signal applied to the signal-feed port into first and second signals respectively coupled from the first and second line portions through the first and second coupling slots to the antenna element, the first and second signals having respective first and second phases differing from each other by substantially π radians.