Skyworks Solutions, Inc.
NOTCH FILTERS FOR SELECTIVE EMISSIONS SUPPRESSION

Abstract:

Architectures and techniques relate to selectively implementing certain components to suppress emissions. For example, an emissions-suppression circuit can include a notch filter associated with a first frequency range, a switch assembly coupled to the notch filter, and a duplexer coupled to the switch assembly. The switch assembly can be configured to, in a filter state, couple the notch filter to a transmit path and configured to, in a bypass state, decouple the notch filter from the transmit path. The transmit path can be associated with two or more switch connections in the notch-filter state and associated with one switch connection in the bypass state. The duplexer can include a transmit filter that is associated with a second frequency range.