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Title:
メタマテリアル及びアンテナシステム
Document Type and Number:
Japanese Patent JP2014527366
Kind Code:
A
Abstract:
A metamaterial 14 comprises an array of conductive tracks where at least one conductive track has a different length, width or thickness to that of at least one of the other conductive tracks. The conductive tracks are formed in an array of unit cells. The unit cells may form a two dimensional array or a stack of such arrays. The unit cells may be formed in or on a dielectric substrate 3 and possibly on opposed surfaces of the substrate. A conductive track for a unit cell, or each unit cell of an array, may include an asymmetric split ring resonator where the conductive track may have various portions of different sizes or shapes such that they resonate at different frequencies. One or more unit cell elements may be omitted to leave an empty region within the array. The metamaterial 14 may be placed between two or more antennas 1, 2 to improve isolation between the antennas.

Inventors:
Harper, a mark
Application Number:
JP2014526550A
Publication Date:
October 09, 2014
Filing Date:
August 16, 2012
Export Citation:
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Assignee:
Microsoft Corporation
International Classes:
H01Q1/52; H01Q5/10; H01Q15/14; H01Q21/08
Domestic Patent References:
JP2010103609A2010-05-06
JP2009540691A2009-11-19
JP2010028182A2010-02-04
Foreign References:
US20100232017A12010-09-16
US20040160367A12004-08-19
US20050073744A12005-04-07
US20100295739A12010-11-25
US20070285336A12007-12-13
Other References:
SU H-L: "Dual-band insulator design by stacking capacitively loaded loops for MIMO antennas", ELECTRONICS LETTERS, vol. V46 N20, JPN5014009826, 30 September 2010 (2010-09-30), pages 1364 - 1365, ISSN: 0003324489
CHENG ZHU: "Multiresonant Metamaterial Based on Asymmetric Triangular Electromagnetic Resonators", IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, vol. V9, JPN5014009828, 17 February 2010 (2010-02-17), US, pages 99 - 102, ISSN: 0003324490
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Shinsuke Onuki
Toson Naoki



 
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