Microwave phase shifter
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United States of America Patent
Stats
-
Mar 26, 1985
Grant Date -
N/A
app pub date -
Mar 1, 1983
filing date -
Mar 1, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A phase shifter utilizing a circulator and electronic switches to change the length of a transmission line is disclosed. More specifically, a section of transmission line terminated in a short circuit is coupled to one port of a circulator. Energy exiting the port is reflected by the short circuited transmission line to introduce a phase delay in the signal. A PIN diode is utilized to provide a switchable short across the transmission line to reduce its electrical length thereby reducing the phase delay.
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