0351514-A2 is referenced by 1 patents and cites 5 patents.

A waveguide twist for rotating the polarisation plane consists of rectangular hollow conductors wound constantly about its axis, but which require a not inconsiderable constructional length. In a conventional polarisation filter, although it is possible for the propagation direction to be positioned mutually parallel using an elbow, the polarisation planes are however rotated by 90 DEG in the two waveguide branches. In order to provide a waveguide twist, especially for use in a polarisation filter having a small space requirement, with simple means, it is provided that two parallel adjacent waveguides are connected to one another via a common coupling window which is arranged centrally in the one waveguide in the longitudinal direction and off-centre in the other waveguide.; When two rectangular waveguides are employed, the coupling window is arranged on the one hand centrally on the narrow side and off-centre on the wide side on the other waveguide. The waveguide twist is also especially suitable for polarisation filters.

Title
Waveguide twist.
Application Number
EP19890108556 19890512
Publication Number
0351514 (A2)
Application Date
May 12, 1989
Publication Date
January 24, 1990
Inventor
Haslbock Albert
Ephan Norbert Dr
Ilsanker Anton
Assignee
Kathrein Werke Kg
DE
IPC
H01P 01/161
H01P 01/02
H01P 01/16
H01P 01/02
H01P 01/161
H01P 01/02
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