| 摘要 |
PROBLEM TO BE SOLVED: To provide a broad band antenna substrate capable of excellently transmitting/receiving an electric wave in a wide frequency band.SOLUTION: An antenna substrate includes: a first dielectric layer 1; a strip conductor 5 disposed on a bottom face of the first dielectric layer 1 and extending in a first direction to terminate; a ground conductor layer 6 disposed on a top face of the first dielectric layer 1 and having a slot 6a extending in a second direction orthogonal to the strip conductor 5; a second dielectric layer 2 stacked on the first dielectric layer 1 and the ground conductor layer 6; and a first patch conductor 7 disposed on a top face of the second dielectric layer 2. The slot 6a has a side protrusion portion E at a location overlapping with the strip conductor 5 where a width W2 of the slot 6a partially increases in the first direction. A multiple resonance favorably occurs due to the slot 6a having the side protrusion portion E, and therefore favorable transmission/reception is possible in a wide frequency band. |
