A slot loaded annular sector microstrip antenna having a pentaband operation is presented. The antenna has six resonant frequencies and the fourth band occurs between the fourth and fifth resonance. The radiation pattern is linearly polarized at all the frequencies. The radiation is broadside directed at the first three bands, tilted at the fourth and split at the fifth band. The resonant frequencies are located at 3.543 (Sub-6 GHz 5G band), 5.118 (ISM 5.2 GHz), 5.625 (WiMAX 5.8 GHz), 8.463, 9.534 and 11.25 GHz. Analysis of the structure is done using Multiport Network Modeling which fairly accurately predicts the resonant frequencies of the structure.

中文翻译：

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基于多端口网络建模的五频环形微带天线设计与分析

提出了具有五频带操作的缝隙加载的环形扇区微带天线。天线具有六个谐振频率，并且第四频带出现在第四和第五谐振之间。辐射图在所有频率下都是线性极化的。辐射的宽边指向前三个频段，在第四个频段倾斜，在第五个频段分裂。谐振频率位于3.543（Sub-6 GHz 5G频段），5.118（ISM 5.2 GHz），5.625（WiMAX 5.8 GHz），8.463、9.534和11.25 GHz处。使用多端口网络建模可以对结构进行分析，该模型可以相当准确地预测结构的共振频率。