Title:
【発明の名称】携帯無線電話のためのアンテナ・カプラー
Document Type and Number:
Japanese Patent JPH11507195
Kind Code:
A
Abstract:
A novel and improved antenna coupler useful in an adapter for a portable radiotelephone. In a first embodiment, a plurality of curved bands of metal are positioned on a ground plane, with at least one of the plurality of curved bands of metal being electrically isolated from the ground plane so as to couple RF signals to and from the antenna of a portable telephone. At least one ground pin is also mounted on the ground plane. When a portable radiotelephone is interfaced with the antenna coupler, the at least one ground pin makes electrical contact with assembly screws or an external ground pad of a battery charging port on the portable radiotelephone. In a second embodiment, a coupling pin makes direct contact with an component of the RF chain of the portable radiotelephone. In a third embodiment, a helical coupler surrounds the antenna of the portable radiotelephone.
Inventors:
Maldonado, David
Application Number:
JP53557097A
Publication Date:
June 22, 1999
Filing Date:
April 01, 1997
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
H01Q1/24; H01Q1/32; H03H7/46; H04B1/38; H04B1/18; H04B1/40; (IPC1-7): H04B1/38; H01Q1/24
Attorney, Agent or Firm:
Takehiko Suzue (4 outside)