Patent ID: 6052089
Filing Date: 2000-04-18
Classification: H01Q

Abstract:
An antenna for use with a radio circuit in a communications device, said antenna comprising:a first radiating element, having a first end and a second end, said first end of said first radiating element comprising a coil of a first selected internal diameter and said second end of said first radiating element comprising a coil of a second selected internal diameter, said first selected internal diameter larger than said second selected internal diameter, and wherein said first radiating element exhibits a selected input impedance at said first end for coupling to the radio circuit;a second radiating element, having a first end, said first end of said second radiating element comprising a radial spring contact and a stopper, said radial spring contact having a flexible conductive surface terminating in said stopper, said second radiating element detachably connectable to said first radiating element, wherein said radial siring contact is removably insertable into said coil of said second end of said first radiating element and said stopper contacts said coil of said second end of said first radiating element, said radial spring contact and said coil of said second end of said first radiating element forming an electrical connection between said first radiating element and said second radiating element, when the first radiating element and said second radiating element are connected, said selected input impedance of said first radiating element remaining substantially unchanged when said first radiating element is connected to said second radiating element.