Design of Phase-Nonreciprocal CRLH Metamaterials for Antenna Applications

• Material Type: 博士論文
• Title: Design of Phase-Nonreciprocal CRLH Metamaterials for Antenna Applications
• Author/Editor: POROKHNYUK, ANDREY
• Publication Date: 2014-03-25
• Publication Date (W3CDTF): 2014-03-25
• Alternative Title: アンテナ応用のための非相反CRLHメタマテリアルの設計
• Degree grantor/type: 京都工芸繊維大学
• Date Granted: 2014-03-25
• Date Granted (W3CDTF): 2014-03-25
• Dissertation Number: 甲第696号
• Degree Type: 博士（工学）
• Conferring No. (Dissertation): 甲第696号
• Text Language Code: eng
• Subject Heading: nonreciprocity; Metamaterials; pseudo-traveling wave resonator; phase nonreciprocity; leaky-wave antennas; zeroth-order resonator; transmission line matrix methods; electromagnetic analysis; ferrite devices; beam steering; polarization control; beam-squinting; coplanar waveguide antenna; microstrip antenna
• Note (General): Phase-nonreciprocal CRLH metamaterials are analyzed using a new approach in which field analysis and transmission line model are combined. The examined one-dimensional nonreciprocal metamaterials are composed of a ferrite-embedded microstrip line periodically loaded with shunt stubs. In the present approach, the phase constant nonreciprocity is analytically estimated and formulated under the assumption of operating frequency far above the ferromagnetic resonant frequency. The approach gives a good explanation to the phenomenon in terms of ferromagnetic properties of the ferrite and asymmetric geometry of the metamaterial structure, showing a good agreement with numerical simulations and experiment. The present approach simplifies the design of leaky wave antennas without beam-squinting, and such antenna design is proposed. The nonreciprocal metamaterial design is also proposed for circular beam antenna with switchable direction of circular polarization. Based on the principles formulated for ferrite-embedded microstrip line based metamaterial, a coplanar design with enhanced magnitude in nonreciprocity is proposed.; This work includes results of simplified electromagnetic field analysis, numerical simulation and experimental results. Important conclusions are given on the basis of analytic approach and extended to design of nonreciprocal metamaterials with enhanced properties and new antenna types.
• Persistent ID (NDL): info:ndljp/pid/9278004; https://dl.ndl.go.jp/pid/9278004
• Collection: 障害者向け資料
• Collection (Materials For Handicapped People:1): テキストデータ
• Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文; https://dl.ndl.go.jp/collections/A00014
• Acquisition Basis: 博士論文（自動収集）
• Date Accepted (W3CDTF): 2015-05-01T13:23:17+09:00
• Format (IMT): application/pdf
• Access Restrictions: 国立国会図書館内限定公開
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• Periodical Title (URI): http://hdl.handle.net/10212/2183
• Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp