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Patent Searching and Data


Title:
ANTENNA DEVICE AND METHOD FOR DESIGNING SAME
Document Type and Number:
WIPO Patent Application WO/2014/129147
Kind Code:
A1
Abstract:
Disclosed is an antenna device or the like having a split ring resonator that adapts to different frequency bands. An antenna device has a laminated structure that is composed by alternating dielectric layers (DL) (35) and conductor layers (CL) and that includes a plurality of structures each comprising: a first split ring (first SR) (31) that is formed in a first conductor layer (first CL) (36A) extending along one surface of a DL (35), surrounds an opening (2) and has a first split (first SP) (51) formed in a circumferential portion along the opening (2); a second split ring (second SR) (32) that is formed in a second conductor layer (second CL) (36B), which extends along the other surface of the DL (35), in such a manner that the second SR (32) is opposed to the first SR (31), the second SR (32) surrounding the opening (2) and having a second split (second SP) (52) formed in a circumferential portion along the opening (2); a plurality of conductor vias (CVs) (3) that are circumferentially formed at intervals, sandwich the first SP (51) and second SP (52) and electrically connect the first SR (31) to the second SR (32); and a feeder line (4) that is formed in a particular one of the CLs and has one end electrically connected to at least one of the CVs (3) and the other end insulated from the particular CL by a clearance (39) formed in the particular CL along the extending direction of the particular CL.

Inventors:
MIURA KEN (JP)
Application Number:
PCT/JP2014/000729
Publication Date:
August 28, 2014
Filing Date:
February 13, 2014
Export Citation:
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Assignee:
NEC ACCESSTECHNICA LTD (JP)
International Classes:
H01Q5/10; H01Q1/38; H01Q7/00
Foreign References:
JP2006217026A2006-08-17
JP2012244608A2012-12-10
JP2006526322A2006-11-16
Other References:
HIROSHI TOYAO ET AL.: "Electrically Small Split-Ring Resonator Antenna", 2011 NEN IEICE COMMUNICATIONS SOCIETY CONFERENCE, THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, vol. 133, 30 August 2011 (2011-08-30), pages B-1 - 133
Attorney, Agent or Firm:
SHIMOSAKA, NAOKI (JP)
Naoki Shimosaka (JP)
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