| CPC H01P 5/187 (2013.01) [H03H 7/0115 (2013.01); H03H 2001/0085 (2013.01)] | 7 Claims |
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1. A coupler comprising:
a coupler body comprising ground electrodes and port electrodes for power connection to an outside on a lower surface;
a first coupling line located inside the coupler body, electrically connected to at least one of the port electrodes, and having a spiral structure as a whole;
a second coupling line located inside the coupler body, electrically connected to at least another one of the port electrodes, and having a shape corresponding to the first coupling line; and
an internal ground pattern electrically connected to the ground electrodes,
wherein the first coupling line comprises:
a 1-1 line connected to the port electrode;
a 1-2 line extending long in a first direction from the 1-1 line;
a 1-3 line extending long in a second direction bent at a predetermined angle from the 1-2 line; and
a 1-4 line extending long in a third direction bent at a predetermined angle from the 1-3 line,
wherein the 1-3 line is formed to have a thicker width than that of the 1-2 line.
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