高效率的平面椭圆超宽带单极天线

2011 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC 2011) Pub Date : 2011-10-01 DOI:10.1109/IMOC.2011.6169279

A. Lages, M. Kawakatsu, V. Dmitriev

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引用次数: 3

摘要

本文提出并仿真了一种高效率的平面椭圆型超宽带单极天线。通过对传统单极子天线进行几何修改，再进行参数优化，提高了天线的效率。地平面四角为圆角，进给线设计为梯形，进给线下方的缺口也为梯形。给出了该天线的两种模型。一种具有极好的阻抗匹配特性，回波损耗水平低于- 22 dB，另一种在整个UWB区域具有非常好的辐射方向图特性。两种型号在几乎整个UWB波段内的总效率均大于97%，增益特性平坦，传输失真小。

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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Planar elliptical UWB monopole antenna with high efficiency

We propose and simulate in this work a planar elliptical ultra-wideband monopole antenna with high efficiency. High efficiency of the antenna is archieved by applying some geometrical modifications in the conventional monopole antenna, followed by parametric optimization. The corners of the ground plane were rounded, the feeding line was designed with trapezoidal shape and the notch, also of trapezoidal geometry, was positioned under the feeding line. Two models of this antenna are presented. One has as attractive feature an excellent impedance matching with return loss level lower than −22 dB and the other one has very good radiation pattern characteristics in the entire UWB region. Both models have total effiency greater than 97% within almost entire UWB band, flat gain characteristic and and small transmission distortion.

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来源期刊

2011 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC 2011)

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