High-quality waveguide components and systems from 1 to 500+ GHz Since 1956, Flann Microwave has been a market-leading designer and manufacturer of Antennas, Precision Microwave Components and Test and Measurement products operating between frequencies of 1 to 500+ GHz. With strong RF, Mechanical and Electronic design teams integrated within the same facility as our world-leading micro-machining and fabrication plant, we develop innovative solutions to our customers' problems. The biggest players in Communications, Security, Radar, Satellite, Standards and Research work with Flann, towards terahertz frequencies, to manufacture highly integrated subsystems.