Patent ID: 7202831
Filing Date: 2007-04-10
Classification: H01Q

Abstract:
1. A loop-slot antenna defined by a conductive plate comprising: a first slot defined in the conductive plate, the first slot including a transverse slot section extending along the lower edge of the conductive plate and a longitudinal slot section extending upward along the left edge of the conductive plate and opening to the upper edge of the conductive plate, the first slot being operable at a first frequency; a first strip including a transverse branch located below the transverse slot section and a longitudinal branch beside the longitudinal slot section, the longitudinal branch having a feed point at the top end thereof; a second slot being defined in the conductive plate and extending along the upper edge of the conductive plate, the left end of the second slot opening to the upper edge of the conductive plate; a second strip element being located above the second slot and having a free end, a grounding point being disposed on the free end of the second strip; and a patch element located between the first slot and the second slot, the patch element being operable at a second frequency.