Wideband flat power detector
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United States of America Patent
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Jun 28, 1994
Grant Date -
N/A
app pub date -
Dec 21, 1992
filing date -
Dec 21, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A wideband detector having a substantially flat response is made by using the signal at the isolation port of a coupler. As the response or transfer characteristic at the isolation port is substantially linear, a matching network having the inverse opposite transfer characteristic with respect to frequency may be connected to the coupler. The addition of the matching network transfer characteristic to the transfer characteristic of the coupler in the isolation port produces a superposition. Accordingly, the matching network transfer characteristic compensates for the linear varying transfer characteristic at the coupler isolation port to produce a substantially flat output of the matching network. The detector connected to the matching network output will then produce a detector signal which is substantially flat over the frequency range of the bandspread of interest.
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