Features & BenefitsSeries FBI millimeter-wave fullband isolators featuring Millitech technology are Faraday rotation ferrite devices and are available in full waveguide bandwidths from 18 to 220 GHz. Series FBI isolators are available in a wide range of input and output waveguide configurations and are available with a DC block for used in conjunction with a detector to measure power. Also see series JFD ferrite circulators and isolators for narrow band applications. Full waveguide bandwidths High isolation Low insertion loss Available DC block Contact our product experts to discuss your specific requirements and custom configurations to meet your needs.