环形吸收器夹有圆形HIS反射器的螺旋天线

2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2022-09-05 DOI:10.1109/APWC49427.2022.9899965

M. Tanabe

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引用次数: 1

摘要

研究了一种圆形高阻抗表面反射器(CirHISR)与环形吸收器(r - abs)夹在一起的螺旋天线。为了改善带有CirHISR的螺旋天线在特定频率区域的增益变化，我们提出了一种新的结构，即CirHISR被两个r - abs夹在中间。2.5 GHz(最低工作频率)时，天线高度为0.096波长。利用市售的矩量软件分析了天线的特性。研究发现，与没有r - abs的CirHISR相比，夹有两个r - abs的CirHISR有助于增强增益变化(在2.5 GHz至9 GHz的频率范围内超过5.0 dBi)。天线的其他特性，包括输入阻抗和轴比，也进行了分析和介绍。

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Spiral Antenna with a Circular HIS Reflector Sandwiched by Ring-shaped Absorbers

A spiral antenna with a circular high-impedance surface (HIS) reflector (CirHISR) sandwiched by ring-shaped absorbers (R-ABSs) is investigated. To improve the variation of the gain in a specific frequency region for a spiral antenna with a CirHISR, we propose a new structure where the CirHISR is sandwiched by two R-ABSs. The antenna height is 0.096 wavelength at 2.5 GHz (the lowest operating frequency). The antenna characteristics are analyzed using a commercially available method of moment software. It is found that the CirHISR sandwiched by two R-ABSs contributes to the enhancement of the gain variation (more than 5.0 dBi across a frequency range of 2.5 GHz to 9 GHz), compared to the gain of the CirHISR without R-ABSs. Other antenna characteristics, including input impedance and axial ratio, are also analyzed and presented here.

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来源期刊

2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)

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