Location History:
- Eichelhardt, DE (1994)
- 57612 Eichelhardt, DE (1996)
- Munich, DE (1991 - 2004)
Company Filing History:
3 out of 30,040 
1 out of 1 
2 out of 832,812 Years Active: 1991-2004
Title: Friedrich Schumacher: Innovator in Antenna Systems and Amplifier Technology
Introduction
Friedrich Schumacher is a notable inventor based in Munich, Germany. He holds a total of 6 patents that showcase his contributions to the fields of antenna systems and amplifier technology. His innovative work has significantly impacted the way these technologies are developed and utilized.
Latest Patents
One of Schumacher's latest patents is a "System for phase trimming of feeder cables to an antenna system by a transmission pilot tone." This system utilizes a transmission pilot tone to ensure that feeder cables driving an antenna system are properly phased. A pilot tone device generates the transmission pilot tone, which is input into each feeder cable. The received pilot tone is then processed to determine phase differences, which are compensated for by a trimming device.
Another significant patent is the "Control system for the linearization of an amplifier circuit." This control system addresses the challenges of amplifying RF input signals in a power amplifier operating in a non-linear region. It involves a modulator that derives a local oscillator from an input measurement signal, which is then mixed with the input and output measurement signals to create intermediate-frequency signals. These signals are analyzed to derive amplitude control signals that help linearize the amplification process.
Career Highlights
Throughout his career, Friedrich Schumacher has worked with prominent companies, including Siemens Aktiengesellschaft. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in his field.
Collaborations
Schumacher has collaborated with several individuals, including Gustav Schumacher, Ii, and Gustav Schumacher. These collaborations have likely enriched his work and led to further advancements in technology.
Conclusion
Friedrich Schumacher's contributions to antenna systems and amplifier technology are noteworthy. His innovative patents reflect his expertise and commitment to advancing these fields. His work continues to influence the development of new technologies that enhance communication systems.