This inventor holds 1 USPTO granted patent. Top assignee: Hughes Aircraft Company. Active years: 1976.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1976
Title: David L English - Innovator in Microwave Technology
Introduction
David L English is a notable inventor based in Garden Grove, California. He has made significant contributions to the field of microwave technology, particularly in the development of tunable oscillator and amplifier circuits for millimeter-wave diodes. His innovative work has implications for various applications in telecommunications and electronics.
Latest Patents
David L English holds a patent for a "Tunable oscillator/amplifier circuit for millimeter-wave diodes." This invention discloses microwave oscillator or amplifier circuitry that is tunable over a wide bandwidth. It includes an improved variable loading on a negative resistance semiconductor diode, such as an IMPATT diode. The design features loading provided in mutually perpendicular directions closely adjacent to the diode. One direction includes a DC bias connection mounted with an adjustable coaxial filter, serving as a series tuning element for the diode. A movable short is also included for adjustment in a direction perpendicular to the coaxial filter, providing parallel tuning for the diode. These tuning elements work to match the real and imaginary components of the diode impedance to those of the load impedance at a specific operating frequency, maximizing power transfer and DC to RF conversion efficiency. The frequency-dependent parameters of the circuitry are contained in a removable and replaceable insert that fits securely into the waveguide housing.
Career Highlights
David L English is associated with Hughes Aircraft Company, where he has applied his expertise in microwave technology. His work has contributed to advancements in the field, showcasing his skills as an inventor and engineer.
Collaborations
One of his notable coworkers is Hiromu John Kuno, with whom he has likely collaborated on various projects within the company.
Conclusion
David L English's contributions to microwave technology through his innovative patent demonstrate his expertise and commitment to advancing the field. His work continues to influence the development of efficient electronic systems.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile