A wideband staircase pattern defected ground monopole antenna integrated with an artificial magnetic conductor (AMC) reflector has been proposed for C-band (4–8 GHz) and ITU band (8.01–8.5 GHz) applications. The integrated antenna consists of a staircase antenna at top, a 2 × 2 AMC reflector at the bottom and an air substrate as gap between them. The AMC offers 18.5% ± 90° reflection phase bandwidth from 6.10 to 7.32 GHz. The AMC layer has achieved mu-negative properties in the designated band. The AMC proffers polarization independent behavior in the respective frequency band depicting robustness in AMC reflection phase characteristics. The integrated antenna has offered a wide impedance bandwidth of 2.78 GHz (42.8% at 6.5 GHz and 34.1% at 8.15 GHz) due to the defected ground monopole. The integration of wideband AMC beneath the staircase monopole antenna alters the out of phase radiation to in-phase planer pattern which enhances the peak gain up to 9.7 dB. It reduces the 1-g averaged specific absorption rate to 0.223 and 0.324 W/kg at the two designated bands. The structure maintains almost similar bandwidth and gain due to artificial human body loading.

中文翻译：

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一种宽带、紧凑、高增益、薄型、单极天线，使用宽带人造磁导体进行离体通信

已针对 C 波段（4-8 GHz）和 ITU 波段（8.01-8.5 GHz）应用提出了一种集成了人工磁导体 (AMC) 反射器的宽带阶梯状缺陷地面单极天线。集成天线由顶部的阶梯天线、底部的 2 × 2 AMC 反射器和作为它们之间间隙的空气基板组成。AMC 在 6.10 至 7.32 GHz 范围内提供 18.5% ± 90° 反射相位带宽。AMC 层在指定频带内实现了 mu-negative 特性。AMC 在各自的频带中提供与偏振无关的行为，描绘了 AMC 反射相位特性的稳健性。由于接地单极子有缺陷，集成天线提供了 2.78 GHz 的宽阻抗带宽（6.5 GHz 时为 42.8%，8.15 GHz 时为 34.1%）。楼梯单极天线下方的宽带 AMC 集成将异相辐射更改为同相平面模式，从而将峰值增益提高到 9.7 dB。它在两个指定波段将 1-g 平均比吸收率降低到 0.223 和 0.324 W/kg。由于人工人体负载，该结构保持几乎相似的带宽和增益。