| 摘要 |
A ground electrode is formed on upper and lower surfaces of a substrate. Along a part of one side of the substrate, a non-ground area is formed on the upper and lower surfaces of the substrate. In the non-ground area on the upper surface of the substrate, a substrate-side radiation electrode is formed along an edge of the substrate. An earth terminal at one end of the substrate-side radiation electrode is electrically connected to the ground electrode or is grounded. A dielectric-block-side radiation electrode and a capacitance forming electrode are formed on a dielectric block. There is a capacitive coupling portion in an inter-electrode gap between an end of the dielectric-block-side radiation electrode and an end of the capacitance forming electrode. A capacitor is connected in series in the middle of the substrate-side radiation electrode.
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