| 摘要 |
Antenna 2 and radio communication apparatus 1 include mount portions 9 and 15, flat proximity opposing surfaces 13 and 20, and waveguide portions 12 and 19 penetrating through proximity opposing surfaces 13 and 20, respectively. For example, in proximity opposing surface 13 of radio communication apparatus 1, choke groove 14 is formed outside waveguide portion 12. With mount portions 9 and 15 of antenna 2 and radio communication apparatus 1 abutted against and fixed to each other, proximity opposing surfaces 13 and 20 are set parallel to, and directly opposite to each other with a clearance interposed therebetween so that waveguide portions 12 and 19, opposite to each other and with a clearance, form a waveguide. |
