Emissions-suppression circuits
AssigneeSkyworks Solutions, Inc.
InventorDavid Richard PEHLKE
Life of this patent
Estimating the term…
Abstract
Architectures and techniques relate to selectively implementing certain components to filter emissions. For example, a circuit can include a filter associated with a first frequency range, a first switch, and a second switch. The first switch can be configured to, in a filter state, route a signal through the filter and configured to, in a bypass state, route the signal to an output node while bypassing the filter. The second switch can be configured to, in the filter state, route the signal from the filter to the output node.
Claims20
An emissions-suppression circuit comprising:
- a notch filter associated with a frequency range;
- a first switch configured to, in a filter state, couple an input node to the notch filter and configured to, in a bypass state, couple the input node to an output node;
- and
- a second switch configured to, in the filter state, couple the notch filter to the output node.
A radio-frequency module comprising:
- a packaging substrate;
- a first filter disposed on the packaging substrate and configured to attenuate signals associated with one or more frequencies;
- a first switch disposed on the packaging substrate and configured to, in a filter state, route a signal through the first filter and configured to, in a bypass state, route the signal to an output node while bypassing the first filter;
- and
- a second switch disposed on the packaging substrate and configured to, in the filter state, route the signal from the first filter to the output node.
A radio-frequency device comprising:
- a power amplifier;
- a notch filter;
- a switch assembly coupled to the power amplifier and the notch filter, the switch assembly including a first switch and a second switch, the first switch being configured to, in a filter state, route a signal through the notch filter and configured to, in a bypass state, route the signal to an output node while bypassing the notch filter, the second switch being configured to, in the filter state, route the signal from the notch filter to the output node;
- a controller coupled to the switch assembly and configured to provide a control signal to the switch assembly;
- and
- an antenna coupled to the switch assembly.
Dependencies are inferred from the claim text.