Decade bandwidth planar MMIC four port transformer
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United States of America Patent
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Jan 29, 2013
Grant Date -
Dec 15, 2011
app pub date -
Aug 22, 2011
filing date -
Feb 17, 2006
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Abstract
A wide bandwidth planar four port MMIC transformer is provided by input diplexers which divide up the incoming signal into a high band and a low band, with the resulting signals coupled to high band and low band four port transformers implemented in one embodiment using spiral inductors and coupled lines, the outputs of which are combined using two output diplexers to provide a decade bandwidth transformer.
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