Title:
REFLECTIVE MEMBER WITH PROTECTIVE PLATE
Document Type and Number:
WIPO Patent Application WO/2022/185811
Kind Code:
A1
Abstract:
Provided is a reflective member with a protective plate, wherein the reflective member can satisfactorily reflect or re-radiate radio waves incident over a wide range of angles from narrow angles to wide angles. The reflective member with a protective plate has: a reflective member that reflects or re-radiates incident radio waves; and the protective plate installed on the radio-wave-incident side of the reflective member, wherein, when the wavelength specified for the operation center frequency f0 [Hz] is λ0 [mm], the thickness of the protective plate is d [mm], the relative permittivity of the protective plate at the operation center frequency f0 [Hz] is εr, and a constant is α, d=α×λ0/(1.75×εr
0.555) is satisfied, where 1≦α≦1.25.
Inventors:
TAKAHASHI KOUICHIROU (JP)
KAGAYA OSAMU (JP)
KUMAGAI AKIRA (JP)
NAGAE SHIMPEI (JP)
KAGAYA OSAMU (JP)
KUMAGAI AKIRA (JP)
NAGAE SHIMPEI (JP)
Application Number:
PCT/JP2022/003667
Publication Date:
September 09, 2022
Filing Date:
January 31, 2022
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
H01Q1/42; H01Q15/14
Domestic Patent References:
| WO2017204059A1 | 2017-11-30 | |||
| WO2020179048A1 | 2020-09-10 |
Foreign References:
| JP2020010304A | 2020-01-16 | |||
| JP2014030138A | 2014-02-13 | |||
| JP2003032165A | 2003-01-31 | |||
| JP2021031839A | 2021-03-01 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
Download PDF:
Previous Patent: SAMPLE COLLECTION CALL TIME PREDICTION SYSTEM AND METHOD
Next Patent: AUTOMATIC VENDING MACHINE
Next Patent: AUTOMATIC VENDING MACHINE