This article presents a simple compact microstrip feedline printed antenna that can minimize the consequences of frequency interference, thereby, providing good stable omnidirectional radiation pattern and transmission response within whole range of desired frequencies. The proposed antenna has two regular shaped hexagonal radiators, a mictrostrip-fed line and a partially extended ground plane perturbed by a circular slot inserted at the centre. The partial ground plane with a circular slot at the center plays an important role in the broad band characteristics of the proposed antenna, because they can adjust the electromagnetic coupling effect between patch and ground plane and improve the impedance bandwidth. The simulation and measured results are in close agreement and show that a wide bandwidth of 10.39 GHz (2.52-12.91 GHz) at −10 dBi return loss with voltage standing wave ratio less than two is achieved by this antenna. The antenna is compact (0.37λ × 0.24λ), has good radiation pattern, appreciable gain of 5.97 dBi and 134% fraction bandwidth which is favorable for ultra-wide band applications such as S, C, X, WLAN, and WiMAX. The equivalent lumped circuit model of the proposed antenna is also presented for validation purpose. The proposed antenna in particular focusses on 3.4 to 3.6 GHz frequency band with centre frequency 3.5 GHz (sub 6 GHz 5G band) and WLAN/Wi-Fi (3.6/4.9/5.9 GHz) applications.

中文翻译：

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一种用于 UWB 应用的带有扰动部分地平面的紧凑型微带馈线印刷天线

本文介绍了一种简单紧凑的微带馈线印刷天线，它可以最大限度地减少频率干扰的后果，从而在整个所需频率范围内提供良好的稳定全向辐射图和传输响应。建议的天线具有两个规则形状的六边形辐射器、一条微带馈线和一个部分扩展的接地平面，该接地平面被插入中心的圆形缝隙扰动。中心带有圆形缝隙的部分接地平面在所提出的天线的宽带特性中起着重要作用，因为它们可以调整贴片和接地平面之间的电磁耦合效应并提高阻抗带宽。仿真和测量结果非常吻合，表明 10.39 GHz (2.52-12.5) 的宽带宽。91 GHz) 在 -10 dBi 回波损耗和电压驻波比小于 2 时由该天线实现。该天线结构紧凑（0.37λ × 0.24λ），具有良好的辐射模式，5.97 dBi 的可观增益和 134% 的分数带宽，有利于超宽带应用，如 S、C、X、WLAN 和 WiMAX。为了验证目的，还提供了所提出天线的等效集总电路模型。所提议的天线特别关注中心频率为 3.5 GHz（低于 6 GHz 5G 频段）的 3.4 至 3.6 GHz 频段和 WLAN/Wi-Fi（3.6/4.9/5.9 GHz）应用。C、X、WLAN 和 WiMAX。为了验证目的，还提供了所提出天线的等效集总电路模型。所提议的天线特别关注中心频率为 3.5 GHz（低于 6 GHz 5G 频段）的 3.4 至 3.6 GHz 频段和 WLAN/Wi-Fi（3.6/4.9/5.9 GHz）应用。C、X、WLAN 和 WiMAX。为了验证目的，还提供了所提出天线的等效集总电路模型。所提议的天线特别关注中心频率为 3.5 GHz（低于 6 GHz 5G 频段）的 3.4 至 3.6 GHz 频段和 WLAN/Wi-Fi（3.6/4.9/5.9 GHz）应用。