Company Filing History:
Years Active: 2020
Title: Mohsen Hashemi: Innovator in Digital Power Amplification
Introduction
Mohsen Hashemi is a prominent inventor based in Delft, Netherlands. He has made significant contributions to the field of digital power amplification, holding three patents that showcase his innovative approach to technology.
Latest Patents
His latest patents include an intrinsically linear, digital power amplifier employing a nonlinearly-sized RF-DAC, multiphase driver, and overdrive voltage control. This digitally-controlled power amplifier (DPA) features a radio frequency digital-to-analog converter (RF-DAC) constructed from nonlinearly weighted power amplifier (PA) segments. The multiphase RF drive signal generator drives the PA segments, while the overdrive voltage control circuitry fine-tunes the RF output of the DPA. The nonlinear weighting of the PA segments compensates for amplitude-code-word dependent amplitude distortion (ACW-AM distortion), and the multiphase RF drive signal generator reduces ACW-dependent phase distortion (ACW-PM distortion). This innovative design eliminates the need for complicated and efficiency-degrading digital predistortion, addressing various non-idealities and external influences such as process, voltage, temperature (PVT), frequency, and load impedance variations.
Career Highlights
Mohsen Hashemi is affiliated with Technische Universiteit Delft, where he continues to advance his research and development in digital power amplification technologies. His work has garnered attention for its practical applications and contributions to the field.
Collaborations
He collaborates with notable colleagues, including Leonardus Cornelis Nicolaas De Vreede and Leonardus Cornelius Nicolaas De Vreede, enhancing the research environment and fostering innovation.
Conclusion
Mohsen Hashemi's work in digital power amplification exemplifies the intersection of innovation and technology. His patents reflect a commitment to improving efficiency and performance in electronic systems.