Technique to evaluation the input reflection coefficient of infinite arrays of printed dipoles

 

J. Foshi*

Laboratory of Electronics, instrumentation and physical measurements

University of Moulay Ismail, Faculty of Sciences and Technologies Errachidia

P.O. 509 Boutalamine Errachidia Morocco

* Corresponding author: E-mail: j.foshi@yahoo.fr  

Received: 27 March 2011; revised version accepted: 03 July 2011

 

Abstract

     This paper presents an accurate and efficient method to determine the input reflection coefficient of infinite arrays of printed dipoles. In this method, the moment method is utilized to solve the equation system derived from de Green function. Data are presented for the input reflection coefficient for various element spacings and substrate parameters. A simple theory, based on coupling from Floquet modes to surface wave modes on the substrate, is shown to predict the occurrence of scan blindness. Measurements from a waveguide simulator of a blindness condition confirm the theory.

 

Keywords: Simulation technique; Input reflection coefficient infinite arrays; Printed dipoles.

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