| 摘要 |
PROBLEM TO BE SOLVED: To provide a mass-producible monopole antenna wherein an impedance matching circuit is integrally formed with antenna elements, matching can be taken without affecting the radiation characteristic, and the state can be reproduced with high accuracy attended with the low-height tendency. SOLUTION: A first dielectric board 1, on one side of which radiation element conductors (a horizontal strip element 3 and a vertical strip element 4) are printed and on the other side of which a transmission line stub 7 penetrated through and short-circuited to an upper end of the vertical strip element 4 is printed, is perpendicularly stood upright onto a second dielectric board 2, on a lower side of which a ground conductor 6 is printed and on the upper side of which a capacitive patch 5 is printed, the vertical strip element 4 and the capacitive patch 5 are connected together, and the transmission line stub 7 is penetrated through and connected to the ground conductor 6. COPYRIGHT: (C)2007,JPO&INPIT
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