Miniature acoustic resonator-based filters and duplexers with cancellation methodology
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United States of America Patent
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-
Jan 16, 2018
Issued Date -
N/A
app pub date -
Feb 19, 2015
filing date -
Feb 19, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A cancellation-based filter may have at least one frequency pass band and at least one frequency stop band. The cancellation-based filter may include a first group of one or more band pass filters, each having at least one acoustic resonator, the first group providing at least one frequency pass band for the cancellation-based filter; at least one hybrid coupler; and a second group of one or more band pass filters, each having at least one acoustic resonator, the second group coupled to at least one of the at least one hybrid couplers, wherein the at least one hybrid coupler and the second group of one or more band pass filters interact to provide at least one frequency stop band for the cancellation-based filter.
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Cited Art Landscape
Patent Citation Ranking
- 10 Citation Count
- H04B Class
- 20.43 % this patent is cited more than
- 7 Age
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