For over 60 years ARRA (Antenna & Radome Research Associates) has been a global innovator in designing, manufacturing, distribution of coaxial and waveguide components. Supplying dependable, cost effective solutions to commercial and military customers worldwide. Our vast products line includes: Attenuators, DC Blocks, Couplers, Power Dividers, Combiners, Line Stretchers, Phase Shifters, PIN Diode Switches, Waveguides, Adapters, shorts, Pressure Windows, Twists, Bends, Horns and Terminations.