Abstract—There have been a number of numerical analyses of RF absorber. These however, tend to focus on the reflectivity of the material not on the radar cross section (RCS) that it presents. Brumley studied the RCS of RF absorbers as a way to estimate the background RCS of anechoic ranges . The study was done empirically, doing measurements of the RF absorber, and looking at the RCS of different pyramids, with and without paint. Brumley presents some potential ways of improving the RCS signature of the range thus reducing the background RCS of the site. In this paper the suggestions presented by Brumley are revisited. Read More
Abstract—Financial impacts often drive decisions to repurpose existing ranges instead of procuring new measurement facilities. These existing ranges have fixed geometries (height, width and length) that were set when the range was originally constructed and often are designed for a different purpose. The inability to set the geometry precludes the range designer from using the range geometry to improve measurement performance. Read More
Abstract—Spherical Near-Field (SNF) systems using a swing arm gantry configuration have been the “go to” solution for automotive measurement systems. Recent advances in the automotive industry have warranted a need for SNF systems with high mechanical positioning accuracy supporting measurements up to 40 GHz and beyond. This paper presents the design and implementation of a new swing arm gantry positioner having an 8-meter radius and a radial axis to support high frequency SNF measurements. Read More
NSI-MI Technologies is a company deeply embedded in developing RF and Microwave Measurement Solutions by delivering systems and products to customers operating in the areas of Aerospace, Satellites, General Defense, Missile Defense, Automotive and Vehicle, Wireless and EMC. Customer product cost and productivity are key to the Customer’s success as well as NSI-MI’s success. We apply 65 years of experience and developed expertise in microwave technologies, electromagnetic propagation and mechanical system design to provide RF/microwave measurements, systems and products for aerospace, defense, wireless communications, and transportation industries worldwide.
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We apply our expertise in microwave technologies, electromagnetic propagation and mechanical system design to provide complete antenna test systems for aerospace, defense, wireless communications, and transportation industries as well as academia and research institutes.