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US 5,668,560 AGranted
Wireless electronic module
AssigneeNCR Corporation
InventorsJames Gifford Evans, Martin Victor Schneider, Cuong Tran
Life of this patent
Estimating the term…
Abstract
A wireless electronic module includes a folded monopole antenna having an antenna port impedance which is reactive at the RF frequency of operation and which conjugately matches the reactive impedance of the electronic circuit which connects to the antenna port. A grounded shield is interposed between the antenna and the electronic circuit to reduce RF losses at the antenna.
Claims13
A wireless electronic module arranged to operate at a predetermined radio frequency, comprising:
- a folded monopole antenna having a grounded end connected to a ground plane and an open end, wherein the folded monopole antenna is folded around a corner of the electronic module and is connected to a support strip isolated from the ground plane, the support strip forming an antenna port having a reactive antenna port impedance at the predetermined frequency;
- and
- an electronic circuit connected to the antenna port, wherein the antenna port is positioned along the monopole antenna such that the electronic circuit has an impedance conjugately matching the reactive antenna port impedance at the predetermined frequency.
Dependencies are inferred from the claim text.