Specular Reflection Analysis for Off-Specular Reflectarray Antennas

被引：14
|
作者：
El Hani, Rachid [1 ]
Laurin, Jean-Jacques [1 ]
机构：
[1] Ecole Polytech, Dept Elect Engn, Montreal, PQ H3T 1J4, Canada
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2013年 / 61卷 / 07期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Microstrip antenna arrays; periodic phase error; reflectarray; specular reflection; PATCHES;
D O I：
10.1109/TAP.2013.2243095
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
It is known that for reflectarrays designed to radiate in an off-specular direction, part of the scattered field may still be directed in the specular direction. In this paper, a reflectarray made of single-layer patch elements is considered. The dependence of the unwanted specular reflection on the size of the patches is examined. Moreover, in a global analysis of the reflectarray, we show that this specular reflection can be due to a periodic error occurring in the applied phase shift. It is found that this periodic error is also responsible for the occurrence of a parasitic lobe in backward directions.
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页码：3575 / 3581
页数：7
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