A dual-frequency dual-polarization incident wave anti-reflection glass and anti-reflection method thereof

By pasting a transparent urgency film on the glass surface, the periodically arranged metal grid pattern changes the equivalent dielectric constant of the glass, solving the problem of dual-frequency dual-polarized high-transmittance glass at large incident angles in the prior art, and achieving efficient electromagnetic transmittance enhancement in 5G communication environment.

CN115347377BActive Publication Date: 2025-03-25SOUTHEAST UNIV
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Patent Information

Application Number
CN202211019176.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-24
Publication Date
2025-03-25
Estimated Expiration
2042-08-24

AI Technical Summary

Technical Problem

The prior art is difficult to provide dual-band dual-polarized high-transmittance glass for 5G communication devices at large incident angles, and traditional metamaterial design is complex and costly, which limits industrial development.

Method used

By pasting a transparent urgency film on the surface of the glass, the metal grid pattern arranged periodically within the subwavelength generates an electrical response to the incident electromagnetic waves, changing the equivalent dielectric constant of the glass, matching it with the wave impedance of the air in both frequency bands, thereby achieving dual-frequency dual-polarization electromagnetic transmittance enhancement.

Benefits of technology

The transmission amplitude of the TE and TM polarization modes is greatly enhanced within the 0-80° incident angle range, and the indoor and outdoor communication quality is improved. The two working frequency bands can be independently adjusted by adjusting the structural parameters of the metal pattern to improve the utilization rate of frequency resources.

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Abstract

The present invention provides a dual-frequency dual-polarization incident wave anti-reflection glass and an anti-reflection method thereof. The anti-reflection glass comprises a lower transparent glass layer (1), a lower OCA photoresist layer (2), a PET layer (3), and a grid pattern layer (4) arranged in sequence from bottom to top, wherein the grid pattern layer comprises N metal patterns (41), N being an integer greater than or equal to 1; wherein each of the metal patterns comprises a large square ring (411), a small square ring (412), and a metal fine wire (413) extending at the top corner of the small square ring; the N metal patterns are sequentially arranged on the lower transparent glass layer; the technical solution of the present invention only uses a transparent anti-reflection film to stick on the glass surface, thereby greatly enhancing the transmission amplitude of the incident wave and maintaining a high light transmittance in two specified radio frequency bands, and further, the technical solution of the present invention can greatly improve the communication quality of indoor and outdoor communications.
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