This inventor holds 9 USPTO granted patents. Top assignees: Siemens Aktiengesellschaft, Infineon Technologies Ag. Active years: 1986-2008.
Location History:
- Oberdorfen, DE (1991)
- Dorfen, DE (1986 - 2008)
Company Filing History:
Years Active: 1986-2008
Title: Walter Zimmermann: Innovator in Amplifier and Mixer Circuit Technologies
Introduction
Walter Zimmermann is a notable inventor based in Dorfen, Germany. He has made significant contributions to the field of electronics, particularly in amplifier and mixer circuit technologies. With a total of 9 patents to his name, Zimmermann's work has had a lasting impact on the industry.
Latest Patents
Zimmermann's latest patents showcase his innovative approach to electronic design. One of his notable inventions is an "Amplifier having switchable negative feedback." This amplifier features programmable amplification through a transistor circuit that includes multiple negative feedback resistors. A switch is associated with each negative feedback resistor, allowing for selective activation and deactivation via a controller. This design enables the implementation of a broadband amplifier with high linearity.
Another significant patent is the "Mixer circuit with phase-shifted radio frequency signal." This mixer comprises two transistor circuits, two control inputs, two RF inputs, and two IF outputs. It incorporates positive feedback elements and impedance elements to enhance intermodulation strength, stability, and noise performance, thereby improving the overall functionality of the mixer circuit.
Career Highlights
Throughout his career, Walter Zimmermann has worked with prominent companies in the electronics sector. He has been associated with Siemens Aktiengesellschaft and Infineon Technologies AG, where he contributed to various innovative projects. His experience in these organizations has helped him refine his skills and develop groundbreaking technologies.
Collaborations
Zimmermann has collaborated with several talented individuals in the field. Notable coworkers include Gerhard Lohninger and Horst Klein, who have also made significant contributions to electronics and engineering.
Conclusion
Walter Zimmermann's innovative work in amplifier and mixer circuit technologies has established him as a prominent figure in the electronics industry. His patents reflect a commitment to advancing technology and improving electronic performance. His contributions continue to influence the field and inspire future innovations.

