Circuits and methods related to radio-frequency receivers having carrier aggregation
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United States of America Patent
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Feb 26, 2019
Grant Date -
Oct 15, 2015
app pub date -
Apr 10, 2015
filing date -
Apr 11, 2014
priority date (Note) -
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Abstract
Circuits and methods related to radio-frequency (RF) receivers having carrier aggregation. In some embodiments, a carrier aggregation (CA) circuit can include a first filter configured to allow operation in a first frequency band, and a second filter configured to allow operation in a second frequency band. The CA circuit can further include a first path implemented between the first filter and a common node, with the first path being configured to provide a substantially matched impedance for the first frequency band and a substantially open-circuit impedance for the second frequency band. The CA circuit can further include a second path implemented between the second filter and the common node, with the second path being configured to provide a substantially matched impedance for the second frequency band and a substantially open-circuit impedance for the first frequency band.
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