Title:
TRANSPARENT ANTENNA, ANTENNA ARRAY, AND DISPLAY MODULE
Document Type and Number:
WIPO Patent Application WO/2021/220778
Kind Code:
A1
Abstract:
A transparent antenna that can communicate in at least two 5G bandwidths, and that has a reduced antenna thickness. A transparent antenna provided with a transparent substrate and a metal thin line layer on the upper side of the transparent substrate, wherein: the transparent substrate has a thickness of not more than 200 μm; the metal thin line layer has a porosity of at least 80%; and, if the input reflectance coefficient S11 of a metal conductor having a surface resistivity ρ[Ω/sq] at a frequency of f[GHz] when placed in parallel with the antenna at a distance of 0.15 mm is defined as S11(ρ,f), and the radiation efficiency is defined as Eff(ρ,f)[%], at two frequencies f1, f2 between 2GHz < f < 50GHz, S11(0.1[Ω/sq], f1[GHz]) < -10[dB], S11(0.1[Ω/sq], f2[GHz]) < -10[dB], and | Eff(0.1[Ω/sq], f1[GHz]) - Eff(0.1[Ω/sq], f2[GHz]) | < 25%.
Inventors:
MORIMOTO YASUO (JP)
NAKAMURA NOBUHIRO (JP)
ISSHIKI MASANOBU (JP)
NAKAMURA NOBUHIRO (JP)
ISSHIKI MASANOBU (JP)
Application Number:
PCT/JP2021/015048
Publication Date:
November 04, 2021
Filing Date:
April 09, 2021
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
H01Q1/38; H01Q1/24; H01Q5/371; H01Q9/42; H01Q19/30
Domestic Patent References:
| WO2020066817A1 | 2020-04-02 |
Foreign References:
| JP2011205635A | 2011-10-13 | |||
| JP2013005013A | 2013-01-07 | |||
| US20190058264A1 | 2019-02-21 | |||
| JP2020078662A | 2020-05-28 |
Other References:
See also references of EP 4120474A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
Download PDF:
Previous Patent: SYSTEM FOR DETERMINING MATERIAL TO BE PROPOSED TO USER
Next Patent: ILLUMINATION DEVICE
Next Patent: ILLUMINATION DEVICE