Syracuse, NY – The U.S. Patent and Trademark Office has issued SRC, Inc. a patent for “Method for Calibrating a Phased Array,” a process that allows for accurate calibration measurements of a phased array, and a patent for “Pattern Compression and Modal Beamforming,” a technique that uses a compression algorithm to minimize memory usage while supporting complex beamforming operations. “SRC’s ability to innovate at the forefront of technology is key to our success,” said Kevin Hair, president and CEO of SRC. “Lance’s work has been instrumental in developing methods that ensure our products perform with the precision and reliability our customers depend on to keep America and our allies safe and strong.” The phased array calibration method uses a specialized spherical near-field chamber to measure each component of the radar array. By measuring various angles and positions, the chamber gathers comprehensive data across the entire array surface. Used successfully across various radar products at SRC, this process accommodates a wider range of radar shapes and offers enhanced flexibility for synthesizing beam patterns. As radar systems advance and become more digitally controlled, this approach is critical to maintaining high performance and accuracy. Bradstreet’s method for “Pattern Compression and Modal Beamforming” uses spherical wave expansion coefficients to represent the element patterns, allowing operations to be performed on the compressed data instead of the full antenna pattern. The full antenna pattern can later be reconstructed from these coefficients, reducing memory requirements while preserving accuracy and performance. The inventor for both patents is Lance Bradstreet, senior principal RF engineer. His role includes working with various programs to perform antenna related activities, ranging from design to modeling to taking measurements. He also oversees the operation of the spherical near-field antenna range and planar/cylindrical near-field antenna range. Bradstreet has published multiple papers, holds three additional patents and was named Young Technologist of the Year by the Technology Alliance of Central New York in 2017.
About SRCSRC, Inc. (@SRCDefense), a not-for-profit research and development company, combines information, science, technology and ingenuity to solve “impossible” problems in the areas of defense, environment and intelligence. Across a family of companies, SRC applies bright minds, fresh thinking and relentless determination to deliver innovative products and services that are redefining possible® for the challenges faced by America and its allies. Since 1957, SRC’s commitment to the customer and the best solution — not the bottom line — has remained a core value that guides its efforts. This passion for quality carries through to the technologies the company invents and manufactures, the laboratories and facilities it builds, the people they hire, and communities where they work. Today, nearly 1,400 engineers, scientists and professionals work together at SRC to protect people, the environment and our way of life.
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