Company Filing History:
3 out of 8 
2 out of 4,992 
1 out of 502 Years Active: 1976-1985
Title: Innovations of Roger E Clapp
Introduction
Roger E Clapp is a notable inventor based in Cambridge, MA (US). He holds a total of 6 patents that showcase his contributions to the field of technology, particularly in antenna design.
Latest Patents
One of his latest innovations is the multibeam lens antenna. This technology often features a circular design and utilizes propagation in disk-shaped parallel-surface regions. The phase correction is achieved through terms in .theta..sup.2, where .theta. represents the angle of an aperture point measured from the boresight direction. The new designs include a lens made up of two portions, each consisting of closely spaced plates with a dielectric medium in between. One portion is designed as a surface of revolution, either cylindrical or conical, with two circular ends. The other portion is a cap that may be a disk or a segment of a sphere. The dimensions and indices of refraction are carefully selected to provide focus points for feed ports, tailored for specific beam directions. Some designs incorporate phase correction through .theta..sup.2 and .theta..sup.4, while others utilize .theta..sup.2, .theta..sup.4, and .theta..sup.6.
Another significant patent is the radio frequency lens antenna. This innovation modifies and improves multiple beam antennas by using lenses connected through hybrid junctions. The dual lens structure eliminates the need for circulators while allowing the lenses to function for both transmission and reception. A six-lens structure achieves perfect phase focusing through an R-2R geometry with a Mobius topology, enabling 360 degrees of independent antenna beams from a single circular or cylindrical antenna array.
Career Highlights
Throughout his career, Roger E Clapp has worked with various organizations, including Epp, Inc. and the United States of America as represented by the Secretary of the Air Force. His work has significantly impacted the field of antenna technology.
Collaborations
He has collaborated with notable individuals such as Donald J Lennon and Justin Melvin James, Jr. Their combined expertise has contributed to advancements in their respective fields.
Conclusion
Roger E Clapp's innovative work in antenna technology has led to significant advancements, as evidenced by his patents and collaborations. His contributions continue to influence the industry and inspire future innovations.