Filtronic plc designs, develops, manufactures, and sells advanced radio frequency (RF) communications equipment for telecommunications infrastructure, aerospace and defense, and critical communications market sectors in the United Kingdom, Europe, the Americas, and internationally. It provides Morpheus II, an e-band transceiver module; Cerus, a power amplifier for long range e-band communications; tower top amplifiers; Orpheus, an ultra-high-capacity turn-key solution for backhaul, fronthaul, and mid haul; switched filter banks; GaN amplifiers; custom filters products, including metal cavity, ceramic, combline, interdigital, lumped element, suspended substrate, waveguide, and thin-film filters; and custom combiner products. The company also offers interference mitigation filters; transmit and receive modules; microwave and mmWave transceivers; front end modules, such as power amplifiers, low noise amplifiers, switches, filters, power detectors, baluns, and other products; ceramic, combline, lumped element, metal cavity, suspended substrate, thin film, and small cell filters; waveguide diplexers; and cross-band and in band combiners. In addition, it provides contract design and microelectronic manufacturing services, RF design and testing, and process engineering services. The company was formerly known as Filtronic Comtek plc and changed its name to Filtronic plc in March 1998. Filtronic plc was founded in 1977 and is based in Sedgefield, the United Kingdom.