Summary
International Symposium on Antennas and Propagation
2008
Session Number:1C06
Session:
Number:1C06-4
Microstrip Reflectarray Using Crossed-Dipole with Frequency Selective Surface of Loops
Long Li, Qiang Chen, Qiaowei Yuan, Kunio Sawaya, Tamami Maruyama, Tatsuo Furuno, Shinji Uebayashi,
pp.-
Publication Date:2008/10/27
Online ISSN:2188-5079
Summary:
In this paper, a new idea for reflectarray design is presented that the reflectarray can work as a reflector and produce desired reflection beam shape and direction for a primary wave source, but be partially transparent for other wave sources. A microstrip reflectarray using crossed-dipole elements with frequency selective surface (FSS) of square loops is designed to demonstrate the effectiveness of the present idea. An infinite periodic model is used to analyze the reflection and transmission coefficients of the new crossed-dipole elements. The results show that the square-loop FSS can be used to replace the metal ground plane of a conventional microstrip reflectarray under certain conditions. The reflection phase curve is estimated from the case of normal plane incidence on a periodic infinite array. Using this approach a design of 3× 5 reflectarray of variable size crossed dipoles with square-loop FSS is presented. The properties of the new reflectarray is discussed and compared with a conventional microstrip reflectarray.