Design and evaluation of printed log periodic dipole antenna for an L band electrically steerable array system

2014 First International Conference on Computational Systems and Communications (ICCSC) Pub Date : 2014-12-01 DOI:10.1109/COMPSC.2014.7032669

Jolly Rajendran, G. Sundaram

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引用次数: 11

Abstract

RADAR systems that use a phased array and an electronically scanned array of antennas are extensively used in terrestrial applications on account of their vastly improved directive gain over single-element antennas. The effective beam pattern in such cases is a combination of the elemental pattern and the array factor. In this paper, the design and evaluation of a printed log-periodic dipole antenna, that operates in the L-band, is being discussed. The antenna was fabricated on an FR-4 substrate using printed circuit technology; tested and characterized in terms of its S-parameters, return loss, and insertion loss. The radiation pattern in the azimuth and elevation planes has also been determined. The antenna is found to have a directive pattern, and is linearly polarized with a wide bandwidth. The antenna is being designed for use in the front-end of a RADAR system for terrestrial surveillance applications such as landslide detection, and monitoring the productivity of metallicore mines.

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L波段电控阵列系统打印对数周期偶极子天线的设计与评价

使用相控阵和电子扫描阵列天线的雷达系统被广泛应用于地面应用，因为它们比单元件天线的指令增益大大提高。在这种情况下，有效的波束方向图是元素方向图和阵列因子的组合。本文讨论了一种工作在l波段的印刷对数周期偶极子天线的设计与评价。采用印刷电路技术在FR-4衬底上制作天线;根据其s参数、回波损耗和插入损耗进行了测试和表征。在方位角和仰角平面上也确定了辐射方向图。发现该天线具有方向性方向图，并且具有宽带宽的线极化。该天线的设计目的是用于雷达系统的前端，用于地面监视应用，例如滑坡探测和监测金属核矿的生产力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2014 First International Conference on Computational Systems and Communications (ICCSC)

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