| 摘要 |
PROBLEM TO BE SOLVED: To provide a slot antenna whose grating lobe is improved without using a dielectric body.SOLUTION: The slot antenna includes: a ground conductor 2 formed in a hollow cylindrical shape; a plurality of slots 3 formed by being separated in an axial direction at the ground conductor 2; and a transmission line 4, disposed at a hollow part of the ground conductor 2, for supplying power by sequentially exciting the slots 3. The transmission line 4 includes an inclined part 5, inclined to the axial direction, in at least one section of sections between neighboring slots 3.SELECTED DRAWING: Figure 1 |
