Patent ID: 11923808
Assignee: SKYWORKS SOLUTIONS, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A mobile device comprising:
an antenna configured to provide a single-ended input signal in response to receiving a radio wave; and
a front-end system including a single-ended low noise amplifier stage configured to amplify the single-ended input signal to generate a single-ended amplified signal, an input balun having a first winding configured to receive the single-ended amplified signal and a second winding configured to output a differential amplified signal, a first differential low noise amplifier stage having a first input and a second input, a first switch connected between a first end of the second winding of the input balun and the first input of the first differential low noise amplifier stage, and a second switch connected between a second end of the second winding of the input balun and the second input of the first differential low noise amplifier stage, the front-end system further including a second differential low noise amplifier stage having a first input and a second input, a third switch connected between a first output of the first differential low noise amplifier stage and the first input of the second differential low noise amplifier stage, and a fourth switch connected between a second output of the first differential low noise amplifier stage and the second input of the second differential low noise amplifier stage.