Combiner circuits, and related devices and methods
AssigneeSkyworks Solutions, Inc.
InventorsZhi Shen, Li Chen, William J. Domino, Stephane Richard Marie Wloczysiak, Xiao Zhang
Life of this patent
Estimating the term…
Abstract
A combiner circuit can be implemented as a coupling circuit having a common node and configured to couple the common node to one of first and second groups of filters through a first path and to couple the common node to the other group through a second path. The coupling circuit can be further configured such that the impedance provided by each filter of the one of the first and second groups for a signal in each band of the other group results in the signal being sufficiently excluded from the first path.
Claims20
A radio-frequency architecture comprising:
- a first filter configured to support a first frequency range;
- a second filter configured to support a second frequency range;
- and
- a coupling circuit configured to couple a common node to the first filter through a first path and to couple the common node to the second filter through a second path, such that first and second impedances provided for the first and second paths, respectively, have complex parts that are conjugates of each other, the coupling circuit further configured such that the first impedance provided for the first path results in a signal in the second frequency range being sufficiently excluded from the first path, and such that the second impedance provided for the second path results in a signal in the first frequency range being sufficiently excluded from the second path.
A packaged module comprising:
- a packaging substrate;
- and
- a radio-frequency circuit implemented on the packaging substrate and including a first filter configured to support a first frequency range and a second filter configured to support a second frequency range, the radio-frequency circuit further including a coupling circuit configured to couple a common node to the first filter through a first path and to couple the common node to the second filter through a second path, such that first and second impedances provided for the first and second paths, respectively, have complex parts that are conjugates of each other, the coupling circuit further configured such that the first impedance provided for the first path results in a signal in the second frequency range being sufficiently excluded from the first path, and such that the second impedance provided for the second path results in a signal in the first frequency range being sufficiently excluded from the second path.
A wireless device comprising:
- one or more antennas;
- and
- a front-end module in communication with the one or more antennas and including a radio-frequency circuit having a first filter configured to support a first frequency range and a second filter configured to support a second frequency range, the radio-frequency circuit further including a coupling circuit configured to couple a common node to the first filter through a first path and to couple the common node to the second filter through a second path, such that first and second impedances provided for the first and second paths, respectively, have complex parts that are conjugates of each other, the coupling circuit further configured such that the first impedance provided for the first path results in a signal in the second frequency range being sufficiently excluded from the first path, and such that the second impedance provided for the second path results in a signal in the first frequency range being sufficiently excluded from the second path.
Dependencies are inferred from the claim text.