Anechoic chambers demand materials that deliver consistent, broadband absorption and long‑term reliability. Since 1985, Cuming-Lehman Chambers has been designing and building custom anechoic chambers to the exact specifications of its customers in the defense and commercial markets. We provide engineered RF and acoustic absorber solutions that help aerospace, defense and electronics organizations create stable, low‑reflection test environments for EMC, antenna, radar cross-section (RCS), and microwave measurements. Our portfolio includes microwave and RF absorbers, pyramidal and wedge panels, ferrite tiles and acoustic isolation materials designed to integrate seamlessly into chamber walls, ceilings, floors and test fixtures. Backed by decades of materials expertise, we support custom chamber configurations, precise performance specifications and compliance with demanding industry standards, enabling repeatable measurements and accelerated program timelines.
What Is an Anechoic Chamber?
An anechoic chamber is a controlled environment engineered to minimize electromagnetic (RF/microwave) or acoustic reflections, so measurements can be taken without interference from surrounding surfaces. RF anechoic chambers use high‑loss absorber materials to attenuate incident energy across targeted frequency bands, reducing standing waves, multipath and background noise. Applications range from EMC/EMI compliance and antenna pattern characterization to radar signature evaluations. Acoustic anechoic chambers rely on specialized acoustic absorbers and geometry to eliminate echoes for sound power and noise measurements. In both cases, the quality of absorber materials directly impacts the chamber’s usable bandwidth, dynamic range, and measurement repeatability.
Specialized Anechoic Chamber Requirements Demand a Custom Approach
Our broad knowledge and experience combined with our team of dedicated professionals enable us to tackle the most unique and demanding projects. In an era of unprecedented growth in digital electronic devices and high-speed wireless communications, Cuming-Lehman Chambers is poised and ready to meet the increased demand for anechoic test facilities. Likewise, with the technological advancements taking place within the Department of Defense, we capitalize on our experience to provide the best overall solutions.
Why Choose an Anechoic Chamber from Cuming-Lehman Chambers?
Cuming-Lehman Chambers specializes in the design and construction of RF shielded anechoic chambers for commercial and defense markets. Our staff has the expertise and dedication to provide quality turnkey anechoic chamber facilities for EMC and high frequency applications. Along with the different types of chambers that we offer, we can put together complete measurement systems to include instrumentation and software. With over fifty years of construction experience, our company has built a solid reputation of completing our projects on time and within budget. Our company was established as a general construction firm; we’re capable of building host building structures to house our anechoic chambers.
