Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
FERRITE PLATE, MEMBER FOR ANTENNA ELEMENT AND ANTENNA ELEMENT
PROBLEM TO BE SOLVED: To provide a ferrite plate containing the ferrite composition having high real part μ' and low imaginary part μ'' of complex magnetic permeability in high frequency band (e.g. 13.56 MHz), a member for antenna element containing the ferrite plate and an antenna element containing any of them.SOLUTION: There is provided a ferrite plate which is NiCuZn ferrite having a crystal particle diameter of a sintered body before separation of 1 μm to 20 μm and has a main component containing iron oxide of 43.0 to 50.0 mol% in terms of Fe2O3, copper oxide of 2.0 to 20.0 mol% in terms of CuO, zinc oxide of 16.0 to 28.0 mol% in terms of ZnO and the balance nickel oxide, and containing titanium oxide of 0.2 to 3.0 mass% in terms of TiO2, cobalt oxide of 0.25 to 3.0 mass% in terms of CoO as accessory components to the main component excluding inevitable impurities.
【課題】高周波数帯（たとえば１３．５６ＭＨｚ）において複素透磁率の実部μ’が高く、かつ虚部μ”が低い、該フェライト組成物からなるフェライトプレートと、該フェライトプレートからなるアンテナ素子用部材と、これらのいずれかを備えたアンテナ素子とを、提供すること。【解決手段】分割前の焼結体の結晶粒径が１μｍ〜２０μｍであるＮｉＣｕＺｎフェライトで、主成分が、酸化鉄をＦｅ２Ｏ３換算で４３．０モル％〜５０．０モル％、酸化銅をＣｕＯ換算で２．０モル％〜２０．０モル％、酸化亜鉛をＺｎＯ換算で１６．０モル％〜２８．０モル％を含有し、残部が酸化ニッケルで構成されており、前記主成分に対して、不可避不純物を除き、副成分として、酸化チタンをＴｉＯ２換算で０．２質量％〜３．０質量％、酸化コバルトをＣｏＯ換算で０．２５質量％〜３．０質量％含有することを特徴とするフェライトプレート。【選択図】図１
FERRITE PLATE, MEMBER FOR ANTENNA ELEMENT AND ANTENNA ELEMENT
PROBLEM TO BE SOLVED: To provide a ferrite plate containing the ferrite composition having high real part μ' and low imaginary part μ'' of complex magnetic permeability in high frequency band (e.g. 13.56 MHz), a member for antenna element containing the ferrite plate and an antenna element containing any of them.SOLUTION: There is provided a ferrite plate which is NiCuZn ferrite having a crystal particle diameter of a sintered body before separation of 1 μm to 20 μm and has a main component containing iron oxide of 43.0 to 50.0 mol% in terms of Fe2O3, copper oxide of 2.0 to 20.0 mol% in terms of CuO, zinc oxide of 16.0 to 28.0 mol% in terms of ZnO and the balance nickel oxide, and containing titanium oxide of 0.2 to 3.0 mass% in terms of TiO2, cobalt oxide of 0.25 to 3.0 mass% in terms of CoO as accessory components to the main component excluding inevitable impurities.
【課題】高周波数帯（たとえば１３．５６ＭＨｚ）において複素透磁率の実部μ’が高く、かつ虚部μ”が低い、該フェライト組成物からなるフェライトプレートと、該フェライトプレートからなるアンテナ素子用部材と、これらのいずれかを備えたアンテナ素子とを、提供すること。【解決手段】分割前の焼結体の結晶粒径が１μｍ〜２０μｍであるＮｉＣｕＺｎフェライトで、主成分が、酸化鉄をＦｅ２Ｏ３換算で４３．０モル％〜５０．０モル％、酸化銅をＣｕＯ換算で２．０モル％〜２０．０モル％、酸化亜鉛をＺｎＯ換算で１６．０モル％〜２８．０モル％を含有し、残部が酸化ニッケルで構成されており、前記主成分に対して、不可避不純物を除き、副成分として、酸化チタンをＴｉＯ２換算で０．２質量％〜３．０質量％、酸化コバルトをＣｏＯ換算で０．２５質量％〜３．０質量％含有することを特徴とするフェライトプレート。【選択図】図１
FERRITE PLATE, MEMBER FOR ANTENNA ELEMENT AND ANTENNA ELEMENT
フェライトプレート、アンテナ素子用部材、およびアンテナ素子
ASANO NORIZUMI (Autor:in) / ISHIKURA TOMOKAZU (Autor:in) / TAKANE SUSUMU (Autor:in)
25.06.2015
Patent
Elektronische Ressource
Japanisch
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