Apple inc. (20240322759). Radio-frequency Amplifier with Load Response Estimation simplified abstract
Contents
Radio-frequency Amplifier with Load Response Estimation
Organization Name
Inventor(s)
Stephan Henzler of Munich (DE)
Radio-frequency Amplifier with Load Response Estimation - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240322759 titled 'Radio-frequency Amplifier with Load Response Estimation
The abstract describes an electronic device with wireless circuitry that includes a processor generating baseband signals, an upconversion circuit converting these signals to radio-frequency signals, a power amplifier, an antenna, and a transmit filter with a frequency-dependent response.
- The wireless circuitry includes predistortion circuitry to mitigate the frequency-dependent filter response.
- The predistortion circuitry has an amplifier load response estimator, an amplifier non-linearity estimator, and a control signal generator.
- The amplifier load response estimator implements a baseband model of the filter response.
- The amplifier non-linearity estimator models the non-linear behavior of the amplifier.
- The control signal generator adjusts the power amplifier based on the estimations from the load response and non-linearity estimators.
Potential Applications: - This technology can be used in wireless communication devices such as smartphones, tablets, and IoT devices. - It can improve the efficiency and performance of wireless transmitters in various applications.
Problems Solved: - Mitigating the frequency-dependent filter response in wireless communication devices. - Improving the overall performance and efficiency of power amplifiers in transmitting signals.
Benefits: - Enhanced signal quality and reliability in wireless communication. - Increased efficiency and reduced power consumption in electronic devices.
Commercial Applications: - This technology can be utilized in the telecommunications industry for improving the performance of wireless networks. - It can also be integrated into consumer electronics for better connectivity and signal transmission.
Questions about the technology: 1. How does the predistortion circuitry improve the performance of the power amplifier? 2. What are the potential challenges in implementing this technology in mass-produced electronic devices?
Original Abstract Submitted
an electronic device may include wireless circuitry with a processor that generates baseband signals, an upconversion circuit that upconverts the baseband signals to radio-frequency signals, a power amplifier, an antenna, and a transmit filter with a frequency dependent filter response coupled between the output of the power amplifier and the antenna. to help mitigate the frequency dependent filter response, the wireless circuitry may further include predistortion circuitry having an amplifier load response estimator that implements a baseband model of the filter response, an amplifier non-linearity estimator that models the non-linear behavior of the amplifier, and a control signal generator for adjusting the power amplifier based on the output of the amplifier load response estimator and the amplifier non-linearity estimator.
