Wave transmission lines and networks – Long lines
Patent
1983-04-11
1985-06-25
LaRoche, Eugene R.
Wave transmission lines and networks
Long lines
333240, 333242, 156 47, 156184, H01P 316
Patent
active
045256934
ABSTRACT:
A transmission line is provided, at least a portion of the wave energy transmitting part of the line being made of a dielectric material shaped to create a physical condition which preserves the deflected wave surface of the electromagnetic wave along the portion of the transmission line. The physical condition for preserving the deflected wave surface is formed by providing at least one linear portion which retards the speed of energy transmission so as to prevent the rotation of the electric field surface of the electromagnetic wave. The wave energy transmitting portion composed of dielectric material is preferably made to have an oval cross-section in which the ratio between the major axis and the minor axis has a value not lower than 4/3. Alternatively, the wave energy transmitting portion can be made to have a rectangular cross-section. The objects of the invention can also be attained by increasing the density of a portion of the line along its length or by applying a local stress over the entire length of the line.
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Okamoto, Katsunari et al., "Linearly Single Polarization Fibers with Zero Polarization Mode Dispersion", IEEE Jorn'l Quantum Elec., vol. QE-18, #4, Apr. '82.
Ohki Hajime
Suzuki Hirosuke
Junkosha Company Ltd.
LaRoche Eugene R.
Lee Benny T.
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