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US 10,122,332 B2Granted
Low-noise amplifier with integrated wideband transformer-based power splitter
AssigneeQUALCOMM Incorporated
InventorsSerkan Sayilir, Chuan Wang, Kevin Hsi Huai Wang
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Abstract
A wireless communication device includes a first low-noise amplifier (LNA). The wireless communication device also includes a first LNA load circuit coupled to an output of the LNA. The wireless communication device further includes a power splitter switchably coupled to the first LNA load circuit. The power splitter includes a negatively coupled transformer and is switchably coupled to multiple outputs.
Claims20
A wireless communication device, comprising:
- a first low-noise amplifier (LNA);
- a first LNA load circuit coupled to an output of the LNA;
- and
- a power splitter switchably coupled to the first LNA load circuit, the power splitter comprising a negatively coupled transformer, wherein the negatively coupled transformer comprises a first inductor and a second inductor, and further wherein the first inductor is switchably coupled to a first output and the second inductor is switchably coupled to a second output.
1 more element
A method for isolating outputs in a wireless communication device, comprising:
- selectively supplying an amplified signal to a power splitter, the power splitter comprising a negatively coupled transformer, wherein the negatively coupled transformer comprises a first inductor and a second inductor, and further wherein the first inductor is switchably coupled to a first output and the second inductor is switchably coupled to a second output;
- and
- isolating the first output and the second output when the amplified signal is supplied to the power splitter.
A wireless communication device, comprising:
- means for selectively supplying an amplified signal to a power splitter, the power splitter comprising a negatively coupled transformer, wherein the negatively coupled transformer comprises a first inductor and a second inductor, and further wherein the first inductor is switchably coupled to a first output and the second inductor is switchably coupled to a second output;
- and
- means for isolating the first output and the second output when the amplified signal is supplied to the power splitter.
Dependencies are inferred from the claim text.