Directional coupler and wireless communication apparatus...

H - Electricity – 01 – P

Patent

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Details

H01P 5/18 (2006.01) H04B 1/04 (2006.01)

Patent

CA 2749355

A directional coupler (1) composed of a micro-strip line (20) containing a main line (2) having an input port (P1) and an output port (P2) and a sub line (3) having a coupling port (P3) and an isolation port (P4). The sub line (3) consists of a high impedance line (4) narrower than the main line (2). The high impedance line (4) has first coupling lines (5A, 5B) and a second coupling line (6) all extending in parallel to the main line (2). A distance between the first coupling lines (5A, 5B) and the main line (2) is made to be shorter than that between the second coupling line (6) and the main line (2).

Coupleur directif (1) composé d'une ligne microruban (20) contenant une ligne principale (2) comportant une borne d'entrée (P1) et une borne de sortie (P2) et une ligne secondaire (3) comportant une borne de couplage (P3) et une borne d'isolation (P4). La ligne secondaire (3) est constituée d'une ligne à forte impédance (4) plus étroite que la ligne principale (2). La ligne à forte impédance (4) comprend des premières lignes de couplage (5A, 5B) et une deuxième ligne de couplage (6) s'étendant toutes parallèlement à la ligne principale (2). Une distance séparant les premières lignes de couplage (5A, 5B) de la ligne principale (2) est plus courte que celle séparant la deuxième ligne de couplage (6) de la ligne principale (2).

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