PROBLEM TO BE SOLVED: To provide an antenna device that can achieve wide-angle radiation directivity by using a single patch antenna, without increasing the size of the device or complicating the configuration that would accompany an array.SOLUTION: An antenna device 1 constructed using a dielectric substrate includes a patch antenna 20 formed on a specified conductor layer, a cavity 12 formed in a dielectric layer 11 arranged on the specified conductor layer and having a shape surrounding the patch antenna 20 in a planar view seen from the Z direction, which is the thickness direction of the dielectric substrate, and ground conductors 21, 22, and 23 arranged opposite the dielectric layer 11 in the Z direction, sandwiching the specified conductor layer therebetween.SELECTED DRAWING: Figure 2
- 출원번호 : 2024161899
- 출원인 : NGK SPARK PLUG CO LTD
- 특허번호 :
- IPC : H01Q-013/08(2006.01);H01Q-019/09(2006.01);