FIELD: contactless signal transmission and reception; electronic-microchip contactless cards.
SUBSTANCE: coupling antenna is formed by plurality of series-interconnected turns disposed on flat substrate built around insulating material. Antenna has one or more series-connected nodes with at least one turn located on flat substrate. At least one of nodes is formed of at least two series-connected turns placed one on top of other along axis perpendicular to substrate plane and isolated from one another by means of strip of insulating paint thereby ensuring rather high inductance. Method for manufacturing such antenna and its use in contactless electronic-microchip card is also given in description of invention.
EFFECT: enhanced inductance of antenna; improved characteristics, enhanced reliability, and reduced cost of card.
15 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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|
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|
RU2351009C2 |
