H - Electricity – 01 – Q
Patent
H - Electricity
01
Q
H01Q 1/38 (2006.01) H01Q 1/24 (2006.01) H01Q 1/36 (2006.01) H01Q 9/42 (2006.01) H05K 1/16 (2006.01)
Patent
CA 2455068
A printed circuit board antenna structure for the transmission of radio frequency energy. The printed circuit board antenna of the present invention includes a circuit board subassembly having a component mounting section and an antenna section. The second planar surface of the circuit board includes a layer of conductive material along the component mounting section to define a ground plane. A radiating and impedance matching trace is applied to the second planar surface of the circuit board along the antenna section. The radiating and impedance matching trace includes a radiating strip extending parallel to the center axis of the circuit board and an impedance matching strip having a plurality of individual legs extending perpendicular to the center axis. The impedance matching strip has defined dimensions to match the impedance of the antenna driving circuit.
Borden Ladner Gervais Llp
Invensys Metering Systems - North America Inc.
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