| 摘要 |
PURPOSE: To provide a planar antenna with excellent impedance matching in which compactness is attained and the manufacture process is simplified. CONSTITUTION: A radial guide path 11 is formed by a 3-layer printed circuit board 20 in which a surface conductor layer 21 is used for a slot plate 12 of the plane antenna 10, an intermediate conductor layer 23 is used for a conductor plate 14 and an insulation board 22 between the surface conductor layer 21 and the intermediate conductor layer 23 is used for a dielectric layer 13. Then a feeding section 15 is formed by a conductor sheath layer 26 coating the wall face of a hole 28 with a bottom formed to the 3-layer printed circuit board 20 and a converter 16 is formed by mounting electronic components onto a rear conductor layer 25 being an electronic component mount wiring. |
