A balun apparatus and method of designing same

Details A balun apparatus and method of designing same A balun apparatus and method of designing same

H - Electricity

01

P

H01P 5/10 (2006.01) H03H 7/42 (2006.01)

Patent

CA 2160024

An electrical connection (400) between a balanced circuit (405), such as a radio receiver (503) and a balanced circuit (401), such as an antenna (515) requires a balun (403). In a small electronic device such as a radiotelephone (500), a traditional balun is impractical because of physical constraints. The balun function is performed by using a transmission line (517) of minimum transverse dimensions and a predetermined length between the receiver (503) and the antenna (515).

L'invention se rapporte à une connexion électrique (400) effectuée entre un circuit équilibré (405) tel qu'un récepteur radio (503), et un circuit équilibré (401) tel qu'une antenne (515), qui nécessite un symétriseur (403). Dans un petit dispositif électronique, tel qu'un radiotéléphone (500), il n'est pas possible d'utiliser un symétriseur traditionnel du fait de ses contraintes physiques. La fonction du symétriseur est effectuée à l'aide d'une ligne de transmission (517) de dimensions transversales minimum et d'une longueur prédéterminée entre le récepteur (503) et l'antenne (515).

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