US 11,916,295 B2
Frequency selective surface
Yohei Toriumi, Tokyo (JP); Go Itami, Tokyo (JP); and Jun Kato, Tokyo (JP)
Assigned to Nippon Telegraph and Telephone Corporation, Tokyo (JP)
Appl. No. 17/283,432
Filed by Nippon Telegraph and Telephone Corporation, Tokyo (JP)
PCT Filed Sep. 26, 2019, PCT No. PCT/JP2019/037954
§ 371(c)(1), (2) Date Apr. 7, 2021,
PCT Pub. No. WO2020/075521, PCT Pub. Date Apr. 16, 2020.
Claims priority of application No. 2018-191608 (JP), filed on Oct. 10, 2018.
Prior Publication US 2021/0351515 A1, Nov. 11, 2021
Int. Cl. H01Q 15/00 (2006.01); H01Q 1/38 (2006.01)
CPC H01Q 15/0013 (2013.01) [H01Q 1/38 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A frequency selective surface having a structure in which resonators having identical shapes are periodically arrayed on a dielectric substrate,
wherein each of the resonators has an equivalent circuit in which two or more LC serial resonance circuits are connected in parallel with each other, and
wherein each of the resonators includes a cross-shaped conductive pattern formed on the dielectric substrate and a lateral pattern and a longitudinal pattern forming a cross are shaped such that each pattern is extended by a predetermined length in respective directions, each pattern extended by the predetermined length is further extended in both directions orthogonal to each other on the dielectric substrate, and leading end parts of the respective further extensions face each other at a predetermined interval.