IEE International Conference on Millimetric Waveguide Systems.

摘要

At the headquarters of the Institution of Electrical Engineers in London a symposium took place from 9-12 November 1976 on the use of circular waveguides for the long-distance transmission of telephone and related traffic. It served principally as a forum for the presentation of the work of six countries--France, West Germany, Italy, Japan, the US, and the UK--and it included a visit to the UK Post Office Research Centre to see the British 14-km test system as well as devices for its fabrication, measurement, installation, and maintenance developed both by the Centre and by its commercial contractors. This report discusses the six systems, describes equipment seen at the Post Office Research Centre, and reports on some of the 62 papers and the discussions they engendered. Conference sessions were devoted to overview papers, waveguide design and production, routing and laying, characteristics of installed waveguides, rf multiplexing, repeaters, active components and devices, systems aspects, and an open forum. The British system is intended ultimately to carry 500,000 two-way voice channels in a single 50-millimeter waveguide, and the UK is making plans for the installation of a waveguide system between Bristol and Reading (123 km) with its commercial use scheduled to begin perhaps as early as 1982. French and US plans are not far behind, but Italy and Japan have not yet established schedules, and Germany has decided against the use of a wavegudie system on account of its lower rate of growth of long-distance telephone traffic. (Author)