1. An investigation of BaLaxFe12−XO19 magneto dielectric material to develop miniaturized antenna for navigational applications
- Author
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S. Balaji, C Gokulnath, S. Deepak Ram Prasath, V. Abhaikumar, and S. Raju
- Subjects
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 - Abstract
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.
- Published
- 2018
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