Importance

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Abstract

A surface mounting antenna in which non-contact excitation can be achieved via a capacitor, and easy impedance matching can be provided even when the antenna is downsized. A communication apparatus loaded with the above antenna is also disclosed. A radiation electrode is disposed on the obverse surface of a substrate. A ground electrode is formed on substantially the overall area of the reverse surface of the substrate. The radiation electrode is connected at one end to the ground electrode via a first end surface of the substrate, and extends at the other end to the portion adjacent to a second end surface opposedly facing the first end surface so as to form a free end. An excitation electrode is disposed to face the forward end of the free end of the radiation substrate across a gap g and to extend from the obverse surface of the substrate to the reverse surface via the second end surface of the substrate.

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First Claim