Balun formed from symmetrical couplers and method for making same
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United States of America Patent
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Sep 18, 2001
Issued Date -
N/A
app pub date -
Jan 26, 2000
filing date -
Mar 11, 1999
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A balun includes first and second symmetrical couplers, preferably first and second backward wave couplers connected to form a balun having an unbalanced port and a balanced port. More specifically, a balun in accordance wit this invention includes first and second backward wave symmetrical couplers each having an input port, a direct port, coupled port, and an isolate port in which the input port of a first coupler is connected to an input port of the second coupler, and the isolated port of the first coupler and the direct port of the second coupler are connected to the balanced ports of the balun respectively.
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