Multi-band device having switch with input shunt arm
AssigneeSkyworks Solutions, Inc.
InventorsWeimin Sun, David Viveiros, JR., Russ Alan Reisner
Life of this patent
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Abstract
In an embodiment, an apparatus includes a first radio frequency (RF) signal path and a second RF signal path. The first RF signal path can provide a first RF signal when active and the second RF signal path can provide a second RF signal when active. The second RF signal path can include a select switch having an input shunt arm electrically coupled to an input of the select switch. The input shunt arm can be arranged such that it is on when the first RF signal path is active and/or when the second RF signal path is inactive.
Claims20
An apparatus comprising:
- a first transmission path including a first power amplifier configured to provide a first RF signal, a first matching network, and a first multi-throw switch configured to receive the first RF signal by way of the first matching network;
- and
- a second transmission path including a second power amplifier configured to provide a second RF signal that is within a different frequency band than the first RF signal, a second matching network, and a second multi-throw switch configured to receive the second RF signal at an input by way of the second matching network, the second multi-throw switch having a passive impedance element in series with an input shunt arm between the input of the multi-throw switch and a ground potential.
An apparatus comprising:
- a first radio frequency (RF) signal path configured to provide a first RF signal when active;
- and
- a second RF signal path configured to provide a second RF signal when active, the second RF signal path including a select switch having an input shunt arm electrically coupled to an input of the select switch, the input shunt arm configured to be on when the first RF signal path is active and the second RF signal path is inactive.
An apparatus comprising:
- an amplifier configured to amplify a radio frequency (RF) signal;
- a matching network coupled to an output of the amplifier;
- and
- a multi-throw switch having an input configured to receive the RF signal from the amplifier by way of the matching network, the multi-throw switch having an input shunt arm electrically coupled to the input, and the input shunt arm is configured to be on when the multi-throw switch is in a non-active state.
Dependencies are inferred from the claim text.