Receiver circuit with constant input impedance
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United States of America Patent
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Oct 13, 1998
Grant Date -
N/A
app pub date -
Jul 25, 1996
filing date -
Sep 8, 1995
priority date (Note) -
In Force
status (Latency Note)
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Abstract
For interference-free transmission of high-frequency signals, the receiver must be terminated with the characteristic impedance of the transmission line. This can be achieved by a single base-connection circuit, but in this case the input impedance is dependent on the current flow and is therefore not exactly constant. Adding a second base-connection circuit makes the circuit symmetrical, so that opposite effects are canceled, which makes the input impedance constant. Production in both bipolar technology and in MOS technology is possible.
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