Method and apparatus for protecting wireless communication systems from ESD and surge
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United States of America Patent
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Issued Date -
May 11, 2006
app pub date -
Oct 29, 2004
filing date -
Oct 29, 2004
priority date (Note) -
Abandoned
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Abstract
A method and apparatus for protecting wireless communication systems from ESD/surge is disclosed. A capacitor is connected in series with a shunt resonating circuit and inserted between a transceiver and outside antenna of the wireless communication system. The shunt resonating circuit may include a shunt inductor in parallel with a shunt capacitor. A resistor may be connected in series between the shunt inductor and the shunt capacitor. The shunt resonating circuit acts like an open circuit with high impedance, and also acts like a short circuit with low impedance at operating frequency bands of the transceiver. The capacitor provides additional protection for the transceiver against low frequency spectrum by acting like a high pass filter.
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