Altera Corporation

Skyworks Solutions, Inc.

Yaxing Zhang

Roman Zbigniew Arkiszewski

Reza Kasnavi

Srivatsan Jayaraman

John C Baldwin

Ethan Chang

Shaun Bryce Chamberlain

Reconfigurable front-end module for carrier aggregation. In some embodiments, a front-end module can include a plurality of signal ports and a plurality of antenna ports. The front-end module can further include a switch assembly configured to route signals along one or more of a plurality of filtering paths between the signal ports and the antenna ports. Each of the filtering paths can include a filter, and the filtering paths can be configured to allow the antenna ports to be combined outside of the front-end module to accommodate a corresponding antenna configuration. The filtering paths can be further configured to maintain desirable filtering performance levels for different combinations of the antenna ports outside of the front-end module corresponding to the different antenna configurations.

Reconfigurable front-end module for carrier aggregation

An integrated circuit having a resonant circuit is provided. The resonant circuit may include an inductor and a capacitor coupled in parallel. The inductor may be formed in a dielectric stack on a semiconductor substrate. An inductor shielding structure may be interposed between the inductor and the semiconductor substrate in the dielectric stack. The inductor shielding structure may be a closed loop structure that is electrically floating. The inductor shielding structure may also be formed using arouting arrangement that is symmetrical to help cancel out any induced current from the inductor. A resonant circuit formed in this way may exhibit an enhanced Q factor.

LC tank circuitry with shielding structures

Growing community of inventors

Fremont, CA, United States of America

Yaxing Zhang