Near-field communication antenna device
A near-field communication antenna and antenna device technology, which is applied in the direction of antenna support/installation device, antenna, loop antenna, etc., can solve the problems of communication effect influence, damage to the integrity of the conductor layer, etc., and achieve near-field communication distance shortening, parasitic The effect of reducing capacitance and reducing eddy current loss
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Embodiment 1
[0043] Make a single-layer conductor antenna with an area of 40mm×40mm and a line width of 0.8mm equal to 5 turns. The bottom is equipped with magnetic material, and the surface of the coil conductor is not covered by a conductor layer. It is recorded as a common antenna device; The antenna has a line width of 5 turns, and area 3 adopts the upper and lower layer overlapping wiring design, where two parallel wires are on the bottom and three parallel wires are on the top. The coil conductor structure is as follows Figure 4 As shown, the bottom of the antenna coil is equipped with magnetic material, the surface of the coil conductor of the antenna device area 4 is covered with a conductor layer, the surface of the coil conductor of the area 3 has no conductor layer, and the width of the area 3 is 4mm, which is recorded as the antenna device of the present invention; It is 40mm×40mm, common 0.8mm equal line width single layer antenna with 5 turns design, the bottom is equipped wi...
Embodiment 2
[0048] The difference between this embodiment and the first embodiment lies in the overlapping manner of the first coil conductor and the second coil conductor.
[0049] Figure 5 It is a top view of the first coil conductor (B), the second coil conductor (C), and the overlap mode (A) of the first coil conductor and the second coil conductor in Example 2, where Figure 5 In (A), (B), and (C), the flexible substrate 8 is transparently processed, that is, the second coil conductor under it can be seen through the flexible substrate. The first coil conductor 9 and the second coil conductor 10 are connected by four vias 11 to form a complete 5-turn spiral coil. Such as Figure 5 As shown in (A), the first coil conductor 9 and the second coil conductor 10 in the area 3 (the first area) completely overlap the two wires in one side of the top area, and the first coil conductor in the area 4 (the second area) The wires in the remaining three sides of 9 and the second coil conductor 10...
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