초록 ▼

A planar diversity antenna for communications devices, such as radiotelephones, has two radiating elements secured to opposite sides of a dielectric substrate. One radiating element is parasitically coupled to a fed radiating element to resonate at respective adjacent frequency bands. Each radiating

A planar diversity antenna for communications devices, such as radiotelephones, has two radiating elements secured to opposite sides of a dielectric substrate. One radiating element is parasitically coupled to a fed radiating element to resonate at respective adjacent frequency bands. Each radiating element has a meandering electrically conductive path. The planar diversity antenna is maintained in spaced apart, generally parallel relationship with a ground plane within a radiotelephone.

대표청구항 ▼

[ That which is claimed is:] [1.] An antenna, comprising:a dielectric substrate comprising opposite first and second faces;a first radiating element disposed on said dielectric substrate first face, said first radiating element comprising a first meandering electrically conductive path having an RF

[ That which is claimed is:] [1.] An antenna, comprising:a dielectric substrate comprising opposite first and second faces;a first radiating element disposed on said dielectric substrate first face, said first radiating element comprising a first meandering electrically conductive path having an RF feed point and a around post;a second radiating element disposed on said dielectric substrate second face and capacitively coupled with said first radiating element, said second radiating element comprising a second meandering electrically conductive path, wherein said first and second meandering electrically conductive paths have different lengths;a hot feed element extending through said dielectric substrate and electrically connected to said RF feed point; anda ground feed element extending through said dielectric substrate and electrically connected to said ground post, wherein the ground feed element is not in electrical contact with the second radiating element.