Microchip Technology Inc.

Broadcom Corporation

Mohsen Pourkhaatoun

Rahim Bagheri

Masoud Djafari

Esmael Heidari

Kiran Gowda

Siddharth Shetty

Hamid Shafiee

Ali Fard

Alireza Tarighat Mehrabani

Vipin Aggarwal

Philippe Riondet

Embodiments of the present disclosure include an OFDM receiver circuit, which includes an FFT circuit configured to calculate an FFT of a plurality of sample values received by the receiver circuit, and a smoothing circuit configured to identify equalizer coefficients for the sample values by truncating portions of an impulse response of the FFT.

Channel estimation in OFDM communication systems

A receiver circuit includes a conversion circuit configured to down-convert a received radio-frequency signal to a baseband signal, an analog-to-digital converter configured to sample the baseband signal into a sampled signal, a Fast Fourier transform (FFT) circuit configured to perform an FFT on the sampled signal, and a digital compensation circuit configured to compensate for IQ distortion in a frequency domain.

Digital compensation of IQ coupling in communication receivers

A RF transmitter includes a power amplifier that generates a transmit signal modulated with outbound data for transmission to a remote communication device via an antenna section. A supply voltage to power the power amplifier is adjusted based on an average power tracking signal. A reflected power from the antenna section is measured. The average power tracking signal is adjusted based on the reflected power to compensate for the changes in impedance of the antenna section and to maintain a desired linearity.

RF transmitter with average power tracking and methods for use therewith

Growing community of inventors

Laguna Niguel, CA, United States of America

Mohsen Pourkhaatoun