Feeding or decoupling device for a coaxial line, especially...

H - Electricity – 01 – P

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Details

H01P 5/12 (2006.01) H01P 3/06 (2006.01) H01P 5/16 (2006.01) H01Q 5/00 (2006.01) H01Q 9/28 (2006.01) H01Q 21/30 (2006.01)

Patent

CA 2336579

A feeding or decoupling device for coaxial lines has a spur line (SL) which is short-circuited at the end. The aim of the invention is to provide at least one simple coaxial line with a broadband connection between the inner and outer conductor or to provide at least one simple coaxial line with a corresponding, at least narrow band, preferably also broadband, short circuit connection between the inner and outer conductor. To this end, at least two interwoven coaxial spur lines (SL1, SL2) are provided preferably, said spur lines each being short-circuited at the end with a short circuit (KS1, KS2) and the length of the spur lines being measured in such a way that the appropriate short circuit (KS1, KS2) is transformed to no-load at the feeding and connecting point (46) according to the frequency band range.

L'invention concerne un dispositif d'alimentation ou de découplage pour lignes coaxiales, présentant une ligne de branchement (SL) court-circuitée à son extrémité. L'invention vise à permettre, au moins dans le cas d'une ligne coaxiale simple, une liaison à large bande du conducteur intérieur et du conducteur extérieur, et, dans le cas d'une ligne coaxiale multiple, un court-circuit correspondant entre le conducteur intérieur et le conducteur extérieur, au moins à bande étroite, de préférence également à large bande. A cet effet, de préférence au moins deux lignes de branchement coaxiales (SL1, SL2) imbriquées sont court-circuitées respectivement par un court circuit (KS1, KS2) à leur extrémité, la longueur de ces lignes de branchement étant calculée de sorte que le court-circuit (KS1, KS2) correspondant soit transformé en circuit ouvert au niveau du pont d'alimentation et de raccordement (46), en fonction de la plage de bandes de fréquences concernée.

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