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SHEET TYPE METAMATERIAL AND SHEEET TYPE LENS

外国特許コード F180009336
整理番号 S2016-0487-C0
掲載日 2018年3月13日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2017JP004381
国際公開番号 WO 2017150098
国際出願日 平成29年2月7日(2017.2.7)
国際公開日 平成29年9月8日(2017.9.8)
優先権データ
  • 特願2016-038296 (2016.2.29) JP
発明の名称 (英語) SHEET TYPE METAMATERIAL AND SHEEET TYPE LENS
発明の概要(英語) This sheet type metamaterial has a first wire array 10 formed on the front surface of a film-like dielectric substrate 12 and a second wire array 11 formed on the back surface of the dielectric substrate 12. The first wire array 10 is constituted of long, thin metal first cut wire 10a of a length l at a spacing g along the direction of the y axis and a spacing s along the direction of the x axis, and a second wire array 11 is constituted of a second cut wire 11a in a symmetrical disposition with the same shape so as to overlap the first cut wire 10a. When the design frequency is 0.51 THz, the thickness d of the dialectic substrate is 50 µm, spacing s is approximately 361 µm, spacing g is approximately 106 µm, and length l for the first cut wire 10a and the second cut wire 11a is a length substantially resonant at the frequency used. Thus, a sheet type metamaterial with an index of refraction of zero can be obtained.
特許請求の範囲(英語) [claim1]
1. A film-like dielectric substrate, the dielectric substrate is formed on one surface of the first wire array and 1, formed on the other surface of the dielectric substrate 2 and a second wire array, said first wire array is a 1, g intervals spaced apart in the axial direction of the dielectric substrate with y, interval s y axis perpendicular to the x axis and spaced apart in the direction of the array are arranged in the predetermined lengths of the first elongated metal l 1 constituted by a cut wire, said first wire array is 2, 1 wherein the first and second cut wire cut wire 1 has the same shape and are arranged symmetrically so as to overlap are arranged in a first cut wire made of a metal and a 2, and 0.51THz when the design frequency, said dielectric substrate has a thickness of about 50μm d, wherein s spacing of about 361μm, about 106μm interval g, wherein the first and second 1 cut wire length l 2 of the cut wire length near resonance frequency using a sheet-type characterized in that the metamaterial.
[claim2]
2. A plurality of unit cells aligned in the form of a film of a dielectric substrate formed in the sheet-type lens, each of the unit cell is, is formed at one surface of the dielectric substrate is of a predetermined length cut wire l 1 and the second elongated metal, the first cut wire 1 in the same shape as the other surface of the dielectric substrate is formed of a metal and a second cut wire 2, wherein on one surface of the dielectric substrate, each of the unit cell of claim 1 in the axial direction of the cut wire spaced apart with g y, y-axis in a direction orthogonal to the x-axis direction s interval spaced arrangement, the other surface of the dielectric substrate, each of the unit cell of claim 2 in the axial direction of the cut wire spaced apart with g y, y-axis in a direction orthogonal to the x-axis direction are arranged in a spaced apart distance s, wherein the first and the second cut wire 1 2 the long axis of the cut wire aligned substantially parallel to the y-axis direction and, when the area of the dielectric substrate, from the central portion to an outer periphery of the region is divided into n, the refractive index of the innermost first region R1 of the 1 is positive, the refractive index of the outermost region of the n first Rn is negative, wherein the first R1 region 1 region between the first predetermined region of the n Rn Rk and zero refractive index, n R1 1 first region from the first refractive index is gradually reduced toward the region Rn and the sheet-shaped and the lens.
[claim3]
3. Wherein the first region to the region R1 to 1 Rk in a region or area, wherein the first 2 and second 1 cut wire cut wire so as to overlap with and are arranged symmetrically, said area (k+1) in the area next Rk R Rn from the first to the n region in the region of the, wherein the first and second cut wire cut wire 1 2 y-axis direction so as to overlap and display is performed by an asymmetrical arrangement according to claim 2 characterized in that the sheet-type lens.
[claim4]
4. In order to obtain an index of refraction, 1 said first and second cut wire width w 2 of the cut wire, wherein the predetermined length l, s wherein said intervals, said intervals g dimension, the first to n 1 first region in the region, and is adjusted according to claim 2 characterized in that the sheet-type lens.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • IBARAKI UNIVERSITY
  • 発明者(英語)
  • SUZUKI TAKEHITO
国際特許分類(IPC)
指定国 (WO2017150098)
National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
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