Company Filing History:
Years Active: 1993-1994
Title: The Innovative Mind of David M. Krafcsik
Introduction
David M. Krafcsik, hailing from Glen Burnie, MD, is an accomplished inventor with two patents to his name. His contributions to the field of microwave frequency technologies have proven essential to advancing modern telecommunication systems.
Latest Patents
Among his latest innovations is a 180-degree phase shifter bit. This sophisticated device utilizes embedded switches to selectively connect the RF input and output to a loosely coupled transmission line segment and a pi section of transmission line. By selecting a hybrid coupler with a characteristic impedance of less than 50 ohms and coupling of less than -3 dB, Krafcsik achieved extremely low insertion loss. The oversized field effect transistors compensate for impedance mismatches, allowing RF signals to operate effectively. This results in signal cancellation effects that recover the input/output impedance across an approximate one-octave bandwidth.
In addition, Krafcsik has developed a miniature thin film microwave frequency manifolded filter bank. This acoustic filter device features acoustic resonators formed on a shared dielectric membrane, resulting in identical frequency responses. The miniature design allows for manifold configurations without the additional circuitry typically responsible for significant filter losses.
Career Highlights
David M. Krafcsik is currently affiliated with Westinghouse Electric Corporation, where he continues to innovate and contribute to cutting-edge technology. His expertise in microwave frequency devices has made him a pivotal figure within the organization and the broader engineering community.
Collaborations
Throughout his career, Krafcsik has collaborated with notable coworkers, including Christopher R. Vale and Dale E. Dawson. These partnerships have allowed for the exchange of ideas and have led to advancements in the technologies being developed.
Conclusion
David M. Krafcsik, with his remarkable inventions and collaborative spirit, is a testament to the power of innovation in enhancing communication technologies. His patents are a reflection of his commitment to pushing the boundaries of engineering and contributing to the technological landscape.