Transparent film antenna
The present invention relates to a transparent film antenna. The present invention comprises: an insulator film; and a metal electrode for an antenna, which is formed on the insulator film, wherein the transmittance of the metal electrode for an antenna is 80% to 95% inclusive. The present invention employs a metal electrode having a high transmittance and a low resistance, so as to provide a transparent film antenna which can be implemented in the screen display area of a display device, can be applied to a high frequency band for 3G to 5G mobile communication, can be implemented as a transparent film antenna satisfying a high transmittance, and can prevent moiré effects due to components of an antenna and thus improve the optical characteristics of a display device to which the antenna is coupled.
1. A transparent film antenna comprising:
an insulator film; and
a metallic antenna electrode formed on the insulator film,
wherein the metallic antenna electrode has a light transmittance ranging from 80% to 95%;
wherein the metallic antenna electrode has a sheet resistance ranging from 0.05 Ω/sq to 2 Ω/sq,
wherein the metallic antenna electrode contains APC alloy which has an Ag content ranging from 90% to 99%,
wherein the transparent film antenna is formed in a screen region of a display device and is applied to high-frequency bands for 3G to 5G mobile communication.
2. The transparent film antenna of claim 1 , wherein the metallic antenna electrode has a front metal structure or a mesh structure.
3. The transparent film antenna of claim 1 , wherein the transparent film antenna has a transmission coefficient S 21 of −5 dB or greater.