| 摘要 |
<p>A car audio apparatus (200) mounted with a communication device comprises an apparatus body section (210) and an apparatus panel section (220) mutually detachable with each other wherein a radiator (212) is arranged in the apparatus body section (210) and a waveguide (222) is arranged in the apparatus panel section (220). Under a state where the apparatus panel section (220) is attached to the apparatus body section (210), the radiator (212) and the waveguide (222) are arranged in predetermined sizes and positions at a predermined distance for enhancing the directivity and gain of a radio wave radiated from the radiator (212) or taken into the radiator (212).</p> |
