OPTICAL WAVEGUIDES Hans-Georg Unger ~ Summary Dielectric films, strips and ribs on transparent substrates serve as waveguides in planar optics. Made of materials suitable for integration of lines and components into microscopic circuits they are preferably monomode and have less than 1 dB/cm loss. Cladded core and gradient glass fibres transmit optical signals over wide distances with low los



THE MEASURED PERFORMANCE OF A MILLIMETRE.WAVE UNIT' FOR TRUNK WAVEGUIDE COMMUNICATION. FREQUENCY MULTIPLEXING J. Bodonyi* and B. K. Watson* ABSTRACT A rectangular waveguide commutating-hybrid array channelling filter and a centre-excited band branching unit have been combined to form a frequency division multiplexing (f.d.m.) network in the 32-50GHz frequency region. These units terminate the c

LOW-MODE LOW-LOSS WAVEGUIDE FOR THE 100-1000 GHz RANGE R.J. Batt, A. Doswell, D.J. Harris and J.M. Reeves ABSTRACT The characteristics of H-guide have been investigated theoretically and experimentally. A modified form allows support of very thin films across the guide and provides some higher order mode suppression. Measurements at 26-40 GHz by a resonance technique have verified the





EXPERIMENTAL FOR CIRCULAR B. Baccetti, 800 MBIT/S WAVEGUIDE C. Bassi, - 4PSK TRANSMITTER AND RECEIVER T. D'Arcangelo. (0) ABSTRACT. application mission city An experimental has been Laboratory Post 800 Mbit/s trans-receiver research Office for circular program waveguide Transcapa- designed and realized of an Italian systems. at GTE-Telecomunicazioni on high program [1] (ISPT). transm

TRANSMITTER-RECEIVERS FOR THE MILLIMETER-WAVE TRANSMISSION SYSTEM IN THE 43-87 GHz RANGE Kazuhiro Kanmuri*, Miyauchi*, Haruhiko Seizo Kato*, Seki*, Susumu Noriaki Ishida*, Masami Akaike*, Kitazume** and Hideki Kobayashi** Noboru ABSTRACT This report describes construction and performance of the millimeterwave solid state regenerative repeaters which were designed and built for use in the field tr

ITALIAN WAVEGUIDE EXPERIMENTAL EQUIPMENT FOR HIGH BIT RATE TRANSMISSIUN ON CIRCULAR P~Bernardi,G.C.Corazza,G.Falciasecca,R.Koch,G.Magni,G.A.Mastellari, G.B.Stracca,F.Valdoni. ABSTRACT. Bordoni, ting waveguide trial, rimental A research and is currently program, sponsored by Centro by Istituto Onde with the Superiore purpose upon Poste e TeleUgo comunicazioni developed Millimetriche desig

NON-LINEARITIES OF FLANGE CONNECTIONS IN TRANSMISSION LINES CARRYING HIGH RF POWER E. Nuding AEG- TELEFUNKEN Germany ABSTRACT Because of the non-linear characteristics of current-carrying contact areas in waveguides and coaxial connectors, combination frequencies with very small amplitudes are generated, when these components are to carry two or more frequencies. Inmicrowave systems these mixing