Phase shifter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jul 21, 1987
Grant Date -
N/A
app pub date -
Jan 22, 1986
filing date -
Jan 22, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A phase shifter with a phase shift primarily independent of frequency includes first and second quadrature hybrids, a delay and a ganged switch. A first path includes an input into the delay, the delay output being connected into the first quadrature hybrid. The corresponding isolated terminal of the first quadrature hybrid forms the output of the first path. A second path includes an input to the second hybrid quadrature with a terminal thereof as an output. Two remaining terminals of the second quadrature hybrid are taken to a common ground through two capacitors of preselected value. The ganged switch selectively engages a system input to either the inputs of the first path or the second path and simultaneously engages a system output to the outputs of the first path or the second path.
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