JELE_V5_N4_A1 Akshay Kumar Srivastava Arvind Pandey B.S. Rai Journal on Electronics Engineering 2249 – 0760 5 4 1 6 Metamaterial, Microstrip Line, Negative Refractive Index, Microstrip Filter, Miniaturization This paper provides knowledge about how to decrease the overall physical size and insertion loss of the filter. Metamaterial is taken as a reference to achieve this goal. Physical size and light weight is a major concern in today's integrated circuit. The application of low pass filter is very wide in the field of communication engineering and the complex receiver in which frequency selection is a primary factor and much more. The rate of change of magnitude with respect to frequency (roll off) and the magnitude in pass band are two most important features of any filters. The particular shape of metamaterial having various unit cell has ability to improve the overall performance of filter. This improves selectivity to great extent. Metamaterial in shape of hexagonal-omega structure provides the negative permittivity. June – August 2015 Copyright © 2015 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=3539