Patent ID: 7830315

Claim:
An antenna apparatus capable of multifrequency resonance, comprising: a feed element supplied with electricity; a single or a plurality of non-feed element(s) disposed over a circuit substrate or outside the circuit substrate having a feeding portion disposed for supplying electricity to the feed element, the non-feed element(s) having an end by which the non-feed element(s) is located adjacent to the feed element; and a single or a plurality of coupling portion(s) that electromagnetically couples the feed element to the non-feed element(s) by the end, the feed element including first and second antenna element units which have different element length, the first and second antenna element units being formed from a connecting portion to the feeding portion that is on the circuit substrate, the antenna apparatus resonating in a frequency band of the feed element, the antenna apparatus resonating in a frequency band of the non-feed element.