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Study of magnetic properties of substituted LiTiZn-ferrite for microwave antenna applications

N. K. SAXENA1, N. KUMAR2, P. K. S. POURUSH1, S. K. KHAH3,*

Affiliation

  1. Microwave Lab, Department of Physics, Agra College Agra-282002, India
  2. Solid State Physics Laboratory, Lucknow Road, Delhi 110007, India
  3. Department of Physics, Jaypee University of Information Technology, Waknaghat, Solan-173215, India

Abstract

Ferrite is one of the most versatile magnetic materials which is frequently used for the high frequency microwave systems. The substituted lithium ferrites have been found most suitable for microwave device applications because of their inherent properties such as high Curie temperatures, high dielectric constant, high saturation magnetization & low dielectric losses. A composition of titanium substituted Li-ferrite with saturation magnetization 2200 Gauss has been synthesized and investigated which can be used for antenna applications in microwave frequency range. The material was prepared by solid state reaction technique (SSRT) and later studied for its electrical, magnetic & structural behaviors. It is observed that LiTiZn ferrite shows different magnetic behavior during DC biasing for microwave frequency antenna applications. The paper describes a precise description of LiTiZn-ferrite preparation, its characteristic plots with a detailed study of nonreciprocal behavior of LiTiZn ferrite slab or substrate under magnetic biasing..

Keywords

Substituted ferrite, Microwave frequency range, Electric & magnetic properties, Tunable property.

Citation

N. K. SAXENA, N. KUMAR, P. K. S. POURUSH, S. K. KHAH, Study of magnetic properties of substituted LiTiZn-ferrite for microwave antenna applications, Optoelectronics and Advanced Materials - Rapid Communications, 4, 3, March 2010, pp.328-331 (2010).

Submitted at: Oct. 27, 2009

Accepted at: March 12, 2010