Wave transmission lines and networks – Long line elements and components – Waveguide elements and components
Patent
1985-05-13
1987-08-18
Gensler, Paul
Wave transmission lines and networks
Long line elements and components
Waveguide elements and components
333 35, H01P 108
Patent
active
046880097
ABSTRACT:
A waveguide window contains a central transverse pane of a material with high dielectric constant such as alumina ceramic. The central pane is an integral number of half-wavelengths thick. On each side of the central pane and immediately adjacent it is a side pane of material with relatively low dielectric constant such as fused quartz. The side panes are odd numbers of quarter-wavelengths thick. The dielectric constants of the side panes are preferably the square root of the dielectric constant of the central pane. The improved wave impedance matching provides a low wave reflection over a wide frequency band.
REFERENCES:
patent: 2411534 (1946-11-01), Fox
patent: 2958834 (1960-11-01), Symons et al.
Ferguson Patrick E.
Nordquist Andrew L.
Cole Stanley Z.
Gensler Paul
Varian Associates Inc.
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