Wave transmission lines and networks – Wave mode converters
Patent
1989-10-02
1991-10-08
LaRoche, Eugene R.
Wave transmission lines and networks
Wave mode converters
333250, 333258, 343756, H01P 1161
Patent
active
050558056
ABSTRACT:
An apparatus is disclosed comprising a polarization mode selection switch for preselected wavelengths using a waveguide having a first array of PIN type diodes mounted in a plane extending substantially perpendicular to a longitudinal waveguide axis. The diodes are disposed at one-quarter wavelength intervals along a first series of parallel lines which are separated at about one-half wavelength intervals. A second PIN diode array is also mounted within the waveguide in a second plane extending substantially perpendicular to the waveguide axis with diodes disposed at one-quarter wavelength intervals along a second series of parallel lines that are also spaced about one-half wavelength apart. The second plane is substantially parallel and adjacent to the first plane with the second lines being oriented substantially perpendicular to the first lines. The diodes are mounted on opposite surfaces of a planar substrate made from quartz or plastic and interconnected with conductive material such as thin metal foil or strips. The diodes can be formed by discrete beam lead PIN diodes or by depositing appropriate layers of P-type, intrinsic, and N-type semiconductor materials adjacent to each other on the substrate. Polarization modes are selected by forward biasing lines of diodes in one array to short or shunt polarization modes aligned with conduction paths in that array.
REFERENCES:
patent: 3189722 (1965-06-01), Fritz
patent: 3708796 (1973-01-01), Gilbert
patent: 4212014 (1980-07-01), Chekroun
patent: 4266203 (1981-05-01), Saudreau et al.
patent: 4518966 (1985-05-01), Sadones
patent: 4595890 (1986-06-01), Cloutier
patent: 4754243 (1988-06-01), Armstrong et al.
Hamann H. Frederick
LaRoche Eugene R.
Lee Benny
Montanye George A.
Ogrod Gregory D.
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