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US 2016/0080011 A1Published application
Multi-band device with reduced band loading
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 matching network with a load impedance configured to prevent a resonance in the second RF signal path due to coupling with the first RF signal path when the first RF signal path is active.
Claims23
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 matching network with a load impedance configured to prevent a resonance in the second RF signal path due to coupling with the first RF signal path when the first RF signal path is active.
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 by way of the second matching network, the second multi-throw switch having an input impedance configured to prevent a resonance in the second transmission path due to coupling with the first transmission path when the first transmission path is active.
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 select switch in communication with the amplifier by way of the matching network, the select switch configured to electrically couple an input of the select switch to a selected output path in an active state, the select switch having an input impedance in a non-active state to prevent a resonance on the matching network due to coupling to another RF signal path from developing when the select switch is in the non-active state and the amplifier is deactivated.
1 more element
Dependencies are inferred from the claim text.