Aluminum etched antenna card and manufacturing method thereof

Abstract

The invention discloses an aluminum etched antenna card and a manufacturing method of the aluminum etched antenna card. The aluminum etched antenna card comprises a polyester film antenna layer (1) and covering layers, wherein the polyester film antenna layer (1) comprises a polyester film and an aluminum etched antenna coil which is fixed to the polyester film, the covering layers include the upper covering layer (2) and the lower covering layer (3), the size of each covering layer is larger than that of the polyester film antenna layer (1), multiple holes (4) are formed in the polyester film antenna layer (1), and the upper covering layer (2), the polyester film antenna layer (1) and the lower covering layer (3) are combined in sequence through hot pressing. According to the aluminum etched antenna card, the upper covering layer can be in direct contact with the lower covering layer, in this way, connection of the same kind of materials is achieved, the problem of layering of existing aluminum etched antenna cards is solved, and the range of application environments of the card is effectively widened.

Description

technical field [0001] The invention relates to the technical field of etching antennas, in particular to an aluminum etching antenna card and a manufacturing method thereof. Background technique [0002] With the application of cards becoming more and more extensive, the market demand is increasing, and the price competition between card manufacturers has become increasingly prominent. At present, there is an aluminum etching antenna card on the market, its price is obviously better than the traditional winding process, and its structure and manufacturing process are also simple. [0003] figure 1 and figure 2 The structure schematic diagram and cross-sectional view of an existing aluminum etching antenna are respectively shown. When making an aluminum etching antenna card, the excess part of the aluminum foil is corroded by acidic liquid corrosion to form an aluminum wire coil 10. The coil 10 uses glue The layer 30 is fixed on the polyester film 20, and the polyester f...

AI Technical Summary

Problems solved by technology

However, since the polyester film and the upper and lower layers are not made of the same material, the polyester film and the upper and lower layers are not bonded firmly after hot pressing, resulting in weakened peel strength between the upper and lower layers, which makes the applicable environment of the card correspondingly smaller and limits aluminum etching. Vigorous promotion of antenna cards

Images