Filtronic 

Filtronic plc, established in Sedgefield, United Kingdom, in 1977, is a global leader in the design, development, manufacturing, and distribution of sophisticated radio frequency (RF) communications equipment. The company delivers its specialized solutions to vital market sectors, including telecommunications infrastructure, aerospace and defense, and critical communications, serving clients across the United Kingdom, Europe, the Americas, and other international regions. Its comprehensive product line features high-performance components such as the Morpheus II e-band transceiver module and Cerus, a robust power amplifier designed for extended-range e-band communications. Filtronic also supplies tower top amplifiers and Orpheus, a complete, ultra-high-capacity system for backhaul, fronthaul, and mid-haul connectivity. Further offerings include switched filter banks, GaN amplifiers, and a diverse range of custom filters, encompassing types like metal cavity, ceramic, combline, interdigital, and waveguide filters, alongside custom combiner products. The company additionally provides interference mitigation filters, transmit and receive modules, microwave and mmWave transceivers, and integrated front-end modules containing elements such as power amplifiers, low noise amplifiers, switches, and filters. Specific filter types like ceramic, combline, lumped element, and small cell filters are also available, alongside waveguide diplexers and various cross-band and in-band combiners. Beyond its product portfolio, Filtronic offers a suite of professional services, including contract design, microelectronic manufacturing, RF design and testing, and process engineering. The company operated under the name Filtronic Comtek plc until March 1998, when it adopted its current designation.