GEC-Marconi Materials Technology Ltd., Caswell - an overview

Article Abstract:

GEC-Marconi Materials Technology Ltd's (GMMTL) research and development activities cover packaging, sensors, optoelectronics and gallium arsenide programmes. GMMTL, a business unit of GEC-Marconi Group, carries out R&D programmes at Caswell to supply technology and products for GEC businesses. The company's research includes optoelectronic integrated circuits, optical interconnection and switching, RF and microwave optoelectronics and optical sources for sensing and communications. Biochemical, acoustic and infra-red sensors research is examined, together with technical services available and packaging and interconnection techniques.

Sensors, Company Profile, Gallium arsenide

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Transparent networks for multi-format optical communications

Article Abstract:

Different wavelength multiplexing levels can be combined with passive optical networks to produce a flexible interconnect medium that can support various signal formats. Fibre optics can be used to produce an evolutionary transparent network. Fibre optics offers improved capacity and new functionality for networking in modern LAN applications, with fibre optic networks providing better price and performance. Transparent networks, multi-format networks and high capacity video networks are overviewed. Focus is given to the high capacity and mixed format networks under development at the GEC-Marconi Research Centre.

Fiber optic networks, Optical communications technologies, Optical communications, Multiplexing, Microwave communications, GEC-Marconi Company Ltd.

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The development of a conical frequency selective radome

Article Abstract:

A sandwich radome of the 'A'-type has been developed and tested, functioning at X-band. The frequency selective surface can be used for radomes, and for other tasks where it is important for the pass band to be stable, both with polarization and where there are wide incidence angles. Predications and measurements coorelate using software built on the model of equivalent circuits. In-band performance is similar to that of a dielectric radome.

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing, Radar Systems & Equip, Electronics industry, Radar

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