In this paper, an ultra‐wideband (UWB) monopole antenna with penta‐notched rejection characteristics is proposed. The first three rejected bands, 2.6 GHz (LTE band), 4.0 GHz (C‐band satellite downlink), and 8.0 GHz (X‐band satellite uplink), are obtained using two fork‐shaped slots embedded on the radiating patch, respectively. However, additional two notched frequencies for 5.5 GHz (WLAN band) and 6.5 GHz (C‐band IEEE INSAT) applications are achieved by spiral line electromagnetic bandgap (EBG) structures. The designed antenna is fabricated over FR4 substrate and has a compact size of 31.3 × 34.9 × 1.6 mm³ and is covering the impedance bandwidth of 2.9–10.5 GHz. Moreover, the suggested antenna has efficient notch controlling capabilities, and its performance characteristics are evaluated and analyzed in terms of rejecting frequencies, surface current distributions, radiation patterns, etc.

中文翻译：

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使用EBG结构和叉形槽的五角UWB单极天线

本文提出了一种具有五级陷波特性的超宽带（UWB）单极天线。前两个被拒绝的频段分别是2.6 GHz（LTE频段），4.0 GHz（C频段卫星下行链路）和8.0 GHz（X频段卫星上行链路），分别使用嵌入在辐射贴片上的两个叉形槽获得。但是，通过螺旋线电磁带隙（EBG）结构可实现5.5 GHz（WLAN频段）和6.5 GHz（C频段IEEE INSAT）应用的另外两个陷波频率。设计的天线在FR4基板上制造，紧凑尺寸为31.3×34.9×1.6 mm ³并且覆盖了2.9–10.5 GHz的阻抗带宽。此外，建议的天线具有有效的陷波控制能力，并根据拒绝频率，表面电流分布，辐射方向图等评估和分析其性能特征。