Analytical investigation of phase agile reflectarray elements based on non-linear materials

Ismail, Muhammad Yusof and Dahri, Muhammad Hashim (2012) Analytical investigation of phase agile reflectarray elements based on non-linear materials. In: International Conference on Electrical, Computer, Electronics and Communication Engineering ICECECE 2012, 28 - 29 February 2012, Florence, Italy.

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Abstract

An investigation of phase agility characteristics and kequency tunability performance of different reflectarray resonant elements is presented in this paper. Dynamic phase range and ftequency tunability characteristics of rectangular, dipole and ring elements printed on grounded non-linear dielectric anisotropic materials have been investigated at X-band kequency range using CST computer model and analytical equations. Analysis of tunability performance for different non-linear materials is carried out with dielectric anisotropy (A&) values ranging ftom 0.17 to 0.45. Method of Moment is used to solve analytical equations for static and dynamic phase ranges as well as frequency tunability. It has been demonstrated that the ring element with higher static phase range of 210" offers a maximum dynamic phase range of 242" whereas rectangular element with lower static phase range of 166" attains a higher kequency tunability of 796 MHz. The possibility of using different reflectarray elements with different non-linear dielectric materials demonstrated a significant effect on the phase agility and tunability performance of reflectarray antenna.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:dielectric anisotropy; dynamic phase range; method of moment; phase agility
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics
Divisions:Faculty of Electrical and Electronic Engineering > Department of Communication Engineering
ID Code:6075
Deposited By:Normajihan Abd. Rahman
Deposited On:11 Nov 2015 15:44
Last Modified:11 Nov 2015 15:44

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