Sectorized approach and measurement reduction for mutual coupling calibration of non-omnidirectional antenna arrays

被引：4

作者：

Aksoy, Taylan ^{[1
]}

Tuncer, T. Engin ^{[1
]}

机构：

[1] Middle E Tech Univ, Dept Elect & Elect Engn, TR-06800 Ankara, Turkey

来源：

RADIO SCIENCE | 2013年 / 48卷 / 02期

关键词：

non-omnidirectional antenna array calibration; mutual coupling; sectorized approach; measurement reduction; direction-of-arrival estimation;

D O I：

10.1002/rds.20017

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Mutual coupling calibration is an important problem for antenna arrays. There are different methods proposed for omnidirectional antennas in the literature. However, many practical antennas have non-omnidirectional (NOD) characteristics. Hence, the previous mutual coupling calibration methods cannot be applied directly since the mutual coupling matrix of an NOD antenna array has angular dependency. In this paper, a sectorized approach is proposed with a transformation matrix for mutual coupling calibration of NOD antenna arrays. In addition, the symmetry of the array radiation patterns for the symmetric array elements is used to reduce the number of calibration measurements. A novel antenna is used to show the accuracy and performance of the proposed approach in direction finding problem where numerical electromagnetic simulations are used to obtain the simulation data.

引用

页码：102 / 110

页数：9

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