An investigation of BaLaxFe12−XO19 magneto dielectric material to develop miniaturized antenna for navigational applications
| Autor: | S. Balaji, C Gokulnath, S. Deepak Ram Prasath, V. Abhaikumar, S. Raju |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Polymers and Plastics chemistry.chemical_element 02 engineering and technology Dielectric Radiation 01 natural sciences Biomaterials chemistry.chemical_compound 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Lanthanum Helical antenna Magneto Barium ferrite 010302 applied physics business.industry 020208 electrical & electronic engineering Metals and Alloys Surfaces Coatings and Films Electronic Optical and Magnetic Materials Characterization (materials science) chemistry Optoelectronics Antenna (radio) business |
| Zdroj: | Materials Research Express. 5:076103 |
| ISSN: | 2053-1591 |
| DOI: | 10.1088/2053-1591/aacfe0 |
| Popis: | The paper presents the synthesis, characterization of Lanthanum substituted Barium ferrite material and its real time application in the development of miniaturised navigational antenna at 2.492 GHz. The Lanthanum substitution is observed to increase the ferro magnetic resonance frequency of BaFe12O19 parent material because of its octahedral site preference. Among the synthesized material, the BaLa0.2Fe11.8O19 material has resulted in higher effective magnetic permeability of around 2.5 and dielectric permittivity of around 5.5. The Quadrifilar helix antenna which is miniaturised by loading the BaLa0.2Fe11.8O19 material has the axial height reduction of 59% compared to the conventional quadrifilar helix antenna, while retaining the radiation characteristics like gain and band width. |
| Databáze: | OpenAIRE |
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