Skyworks Solutions, Inc.

Haisu Ju

Shayan Farahvash

Joshua Kawika Ellis

Haibo Cao

Kun Chen

Fei Jia

Aspects of this disclosure relate to a radio frequency system with tunable notch filtering. The radio frequency system includes a first tunable filter and a second tunable filter. The first tunable filter is coupled between an output of a power amplifier and a radio frequency switch. The second tunable filter includes mutually coupled inductors and a tunable impedance circuit electrically connected to at least one of the mutually coupled inductors. The second tunable filter is coupled between an antenna switch and an antenna node. Related methods and wireless communication devices are also disclosed.

Radio frequency system with tunable notch filters

Aspects of this disclosure relate to a radio frequency system with tunable notch filtering. The radio frequency system includes a first tunable filter and a second tunable filter. The first tunable filter is coupled between an output of a power amplifier and a radio frequency switch. The second tunable filter is coupled between an antenna switch and an antenna node. The second tunable filter has a notch at a lower frequency than a notch of the first tunable filter. Related methods and wireless communication devices are also disclosed.

Radio frequency front end with tunable filters

Radio frequency system with tunable filters including tunable filter with mutually coupled inductors

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Thousand Oaks, CA, United States of America

Haisu Ju