Location History:
- Santee, CA (US) (1985)
- Poway, CA (US) (1980 - 1998)
- Mesa, AZ (US) (2000 - 2005)
Company Filing History:
2 out of 5 
2 out of 1,173 
1 out of 27 
Years Active: 1980-2005
Title: Leland H Hemming: Innovator in Electromagnetic Testing and Antenna Technology
Introduction
Leland H Hemming is a notable inventor based in Poway, California, recognized for his contributions to electromagnetic testing and antenna technology. With a total of 11 patents to his name, Hemming has made significant advancements in the field, particularly in the design of anechoic test chambers and integrated antenna structures.
Latest Patents
Hemming's latest patents include an anechoic test chamber and a method for determining the loss characteristics of material specimens. This innovative chamber features first and second opposed tapered conical sections, covered with an anechoic material on the inside surface. It is equipped with feed and receive antennas at the ends of the conical sections, and an aperture plate that electromagnetically isolates the sections. The method developed utilizes this dual tapered conical chamber to process S-parameter measurements, allowing for the determination of impedance, complex permittivity, or complex permeability of the specimen. Another significant patent is a conformable, integrated antenna structure that provides multiple radiating apertures within a single assembly. This design is particularly beneficial for aircraft, as it minimizes aerodynamic drag while accommodating various antenna services, including communications and navigation.
Career Highlights
Throughout his career, Hemming has worked with prominent companies, including McDonnell Douglas Technologies Inc. His work has focused on enhancing the efficiency and effectiveness of electromagnetic testing and antenna systems, contributing to advancements in aerospace and communication technologies.
Collaborations
Hemming has collaborated with notable professionals in his field, including Edward S Harrison and James L Melquist. These collaborations have further enriched his work and led to innovative solutions in electromagnetic applications.
Conclusion
Leland H Hemming's contributions to the fields of electromagnetic testing and antenna technology have established him as a significant figure in innovation. His patents reflect a commitment to advancing technology and improving the efficiency of systems used in various applications.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.