JIC_V2_N3_RevP1 Amna Bedi Santosh Kumar Journal on Instrumentation & Control Engineering 2321 – 1148 2 3 25 30 Dielectric Resonators, DRA Antenna, Microstrip Antenna, Dielectric Constant, FEM (Finite Element Method), High Frequency Structure Simulated (HFSS) A multi tank level control system is an example of interacting systems. In this paper, the authors considered two first order systems connected in series, one rectangular tank which has inflow of liquid into the tank and out flow. The outflow of first tank is the inflow for second tank through a control valve. The control System is intended to maintain the level of liquid in the second tank at some predefined value irrespective of changes of inflow to the first tank. Fractional Order PID (FOWhen a dielectric resonator is not entirely enclosed by a conducting boundary, it can radiate, and so it becomes an antenna, named Dielectric Resonator Antennas (DRAs). DRAs consist of dielectric materials in its radiating patch also called as dielectric resonators (DRs) on one side of the substrate and has a ground plane (metal) on the other side. DRAs have several merits, including high radiation efficiency, flexible feed arrangement, simple geometry and compactness. There are wide applications of DRAs and it can be designed for the compactness, wide impedance, low profile, circular polarization, and for the high gain. May - July 2014 Copyright © 2014 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=3059