US 12,463,684 B2
Reflect array and wireless communication apparatus
Akira Kumagai, Tokyo (JP); Kotaro Enomoto, Tokyo (JP); Osamu Kagaya, Tokyo (JP); and Yutaka Ui, Tokyo (JP)
Assigned to AGC Inc., Tokyo (JP)
Filed by AGC Inc., Tokyo (JP)
Filed on Jan. 2, 2024, as Appl. No. 18/401,820.
Application 18/401,820 is a continuation of application No. PCT/JP2022/026867, filed on Jul. 6, 2022.
Claims priority of application No. 2021-114605 (JP), filed on Jul. 9, 2021; and application No. 2022-011317 (JP), filed on Jan. 27, 2022.
Prior Publication US 2024/0137075 A1, Apr. 25, 2024
Prior Publication US 2024/0235619 A9, Jul. 11, 2024
Int. Cl. H04B 7/04 (2017.01); H01Q 5/378 (2015.01)
CPC H04B 7/04013 (2023.05) [H01Q 5/378 (2015.01)] 21 Claims
OG exemplary drawing
 
1. A reflect array that sets a reflection angle of a radio wave to an angle that is different from an angle of specular reflection, the reflect array comprising:
a plurality of cells arranged in an array,
wherein
each of the plurality of cells includes at least two main resonant elements and a parasitic resonant element coupled to the at least two main resonant elements,
an element interval of the main resonant elements is (½)λg±20%, where λ0 is a free space wavelength of a frequency of the radio wave, and
the parasitic resonant element is configured to adjust a resonant frequency of the parasitic resonant element and adjust a reflection phase of a surface of the reflect array by adjusting a resonant frequency of the at least two main resonant elements each adjacent to the parasitic resonant element, the parasitic resonant element being coupled to the at least two main resonant elements each adjacent to the parasitic resonant element.