Filter combinations for carrier aggregation

Abstract

Filter combinations for carrier aggregation. In some embodiments, a carrier aggregation circuit can include a first combining stage configured to aggregate a first signal in a first path associated with a first band and a second signal in a second path associated with a second band to provide a first aggregated signal in a first combined path. The carrier aggregation circuit can further include a second combining stage configured to aggregate the first aggregated signal in the first combined path and a third signal in a third path associated with a third band to provide a second aggregated signal in a second combined path.

1 - 42 . (canceled) 
     
     
         43 . A method for aggregating radio-frequency signals, the method comprising:
 combining a first signal in a first path associated with a first band and a second signal in a second path associated with a second band to provide a first aggregated signal in a first combined path; and   combining the first aggregated signal in the first combined path and a third signal in a third path associated with a third band to provide a second aggregated signal in a second combined path.   
     
     
         44 . A method for operating a radio-frequency device, the method comprising:
 providing a front-end circuit in communication with an antenna; and   operating the front-end circuit to include combining a first signal in a first path associated with a first band and a second signal in a second path associated with a second band to provide a first aggregated signal in a first combined path, and combining the first aggregated signal in the first combined path and a third signal in a third path associated with a third band to provide a second aggregated signal in a second combined path.