VSWR monitor and alarm
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Aug 22, 2002
app pub date -
Dec 28, 2000
filing date -
Dec 28, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A VSWR meter and alarm device that produces an alarm when an undesirable VSWR is sensed on an RF transmission line. This device uses a single-arm directional coupler and detectors operating at least 15 dB into the 'square law region' at full power. The single-arm directional coupler is capable of sensing the forward voltage wave and reflected voltage wave from a transmission line. The coupler isolates the forward and reflected voltages and each is converted into a direct current (dc) signal by a full-wave detector. Attenuator circuits are utilized between the coupler and detectors so that the detectors operate at least 15 dB into the 'square-law region' at full power. The dc signals representing the forward and reflected voltages are then amplified and transformed into respective digital signals by a digital-to-analog converter. The digital signals are then transmitted to a microprocessor which operates an alarm system.
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Family
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Cited Art Landscape
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