Johannes H A Brekelmans

Title: **Johannes H A Brekelmans: A Pioneer in Harmonic Rejection Mixer Technology**

Introduction

Johannes H A Brekelmans, an esteemed inventor based in Nederweert, Netherlands, has made significant contributions to the field of electronic systems through his innovative patents. With a portfolio of five patents, Brekelmans has focused on advancements in harmonic rejection mixer technology, an essential component in modern communication systems.

Latest Patents

Brekelmans' latest inventions include a **Polyphase Harmonic Rejection Mixer** and a **Calibration-Free Local Oscillator Signal Generation for a Harmonic-Rejection Mixer**. The polyphase mixer consists of multiple stages capable of performing frequency conversion and selective weighting, ultimately combining signals for optimal performance. The design emphasizes efficiency and may be directly interfaced with antennas in LNA-less receivers, showcasing its practical application in software-defined radios.

In the local oscillator signal generation patent, a circuit is designed to produce multiple switching control signals from a digital local oscillator. By utilizing two waveform combiner circuits arranged symmetrically, the invention ensures accuracy in compensating for phase errors. This innovation directly enhances the performance of harmonic rejection mixers by maintaining reliability and precision in electronic signal processing.

Career Highlights

Brekelmans currently works at NXP B.V., a global leader in semiconductor solutions. His work encompasses the creation and enhancement of technologies that push the boundaries of communication and signal processing. His contributions have been recognized in the industry, marking him as a notable figure in the realm of electronics.

Collaborations

Throughout his career, Brekelmans has collaborated with talented individuals such as Zhiyu Ru and Eric A M Klumperink. These partnerships have enriched his research and development efforts, enabling the cross-pollination of ideas and resulting in innovative solutions that advance electronic technology.

Conclusion

Johannes H A Brekelmans stands out as a prominent inventor in the field of harmonic rejection mixers, with a clear focus on creating efficient and effective electronic components. His work not only reflects his expertise but also marks a significant contribution to the ongoing evolution of communication technology. As electronic systems continue to develop, Brekelmans' innovations are sure to play a pivotal role in shaping the future of this industry.