Circular waveguide polarizer

H - Electricity – 01 – P

Patent

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Details

H01P 1/17 (2006.01) H01Q 13/02 (2006.01) H01Q 13/06 (2006.01) H01Q 15/24 (2006.01)

Patent

CA 2361541

The present invention aims at providing a circular waveguide polarizer with high performance and low cost. The circular waveguide polarizer is realized by arranging a plurality of side grooves 12 in a side wall of a circular waveguide 11 along the direction of a pipe axis C1 and by appropriately designing the number, spacing, radial depth, circumferential width, length in the pipe axis direction, and the like. According to this circular waveguide polarizer, disturbance is imparted to a section with a coarse electromagnetic field distribution in a transmission mode to create a phase delay, so that the amount of phase delay does not vary largely with a delicate change in width, depth and length of the side grooves 12. That is, there is little deterioration in characteristics caused by a machining error or the like, and hence it becomes possible to effect mass production and cost reductions.

L'invention concerne un générateur d'ondes à polarisation circulaire économique et puissant, comportant un guide d'ondes circulaire (11) ayant une pluralité de rainures latérales (12) le long de son axe (C1) dans la paroi latérale. Le nombre, le pas, la profondeur radiale, la largeur périphérique, la longueur etc. des rainures latérales du guide d'onde sont choisis de manière adaptée. Selon ledit générateur d'ondes à polarisation circulaire, des perturbations de délai de phase surviennent au niveau des zones où la répartition du champ électromagnétique en mode de transmission est moins dense, ainsi le délai de phase ne sera que faiblement influencé par de faibles variations de la largeur, de la profondeur et de la longueur des rainures latérales (12), c.-à-d. que des variations dans les dimensions des rainures ne modifieront que faiblement les caractéristiques du générateur, permettant par conséquent une production en masse et des réductions des coûts.

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