用于宽带应用的改进TEM喇叭天线

2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting Pub Date : 2009-03-24 DOI:10.1109/ANTEMURSI.2009.4805077

F. Karshenas, A. Mallahzadeh, A. Imani

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引用次数: 25

摘要

提出了一种提高2 ~ 19 GHz频段瞬变电磁法喇叭天线方向图特性的新方法。传统TEM喇叭天线在中心频率(10 ~ 15 GHz)上的主瓣辐射方向图存在一些波动。这促使我们提出了一种新的方法，通过在指数锥形板的开口端雕刻一个弧形来消除上述影响。这条弧的相关曲率经过优化，完全消除了上述波动。仿真结果表明，改进的TEM喇叭天线结构在2 ~ 19 GHz频段具有较低的驻波比和良好的辐射方向图。

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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Modified TEM horn antenna for wideband applications

This paper presents a novel method to enhance the pattern characteristics of the TEM horn antenna for 2−19 GHz frequency band. The conventional TEM horn antenna introduces some fluctuations in the main lobe radiation pattern over the center frequencies, which are 10−15 GHz. This motivated us to propose a new method to remove the aforementioned impact by carving an arc shape to the open end of exponentially tapered plates. The associated curvature of this arc is optimized to completely remove the aforementioned fluctuation. The simulation results show that the improved TEM horn antenna structure exhibits low VSWR as well as good radiation pattern over 2−19 GHz frequency band.

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来源期刊

2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting

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