| 摘要 |
<p>Provided is a directional coupler for which lowering of the center frequency of same, improvement of the electromagnetic degree of coupling between the main line and the auxiliary line, and low profile design are possible, and for which the design of impedance for each terminal is easy. Within a laminate block (1), a first main line (2A), a first auxiliary line (3A), a second auxiliary line (3B), and a second main line (2B) are formed in order in the stacking direction of the layers, and the first main line (2A), the first auxiliary line (3A), the second auxiliary line (3B), and the second main line (2B) are each split into at least two or more split coil conductors (2c, 2d, ...). In addition, between the first auxiliary line (3A) and the second auxiliary line (3B), two or more split ground conductors (6b and 6c) are provided.</p> |
