Characteristics Mode Analysis-Inspired Compact UWB Antenna with WLAN and X-Band Notch Features for Wireless Applications

J. Sens. Actuator Networks Pub Date : 2023-04-23 DOI:10.3390/jsan12030037

Praveen Kumar, M. Mm, P. Kumar, T. Ali, M. Alsath, V. Suresh

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Abstract

A compact circular structured monopole antenna for ultrawideband (UWB) and UWB dual-band notch applications is designed and fabricated on an FR4 substrate. The UWB antenna has a hybrid configuration of the circle and three ellipses as the radiating plane and less than a quarter-lowered ground plane. The overall dimensions of the projected antennas are 16 × 11 × 1.6 mm3, having a −10 dB impedance bandwidth of 113% (3.7–13.3 GHz). Further, two frequency band notches were created using two inverted U-shaped slots on the radiator. These slots notch the frequency band from 5–5.6 GHz and 7.3–8.3 GHz, covering IEEE 802.11, Wi-Fi, WLAN, and the entire X-band satellite communication. A comprehensive frequency and time domain analysis is performed to validate the projected antenna design’s effectiveness. In addition, a circuit model of the projected antenna design is built, and its performance is evaluated. Furthermore, unlike the traditional technique, which uses the simulated surface current distribution to verify functioning, characteristic mode analysis (CMA) is used to provide deeper insight into distinct modes on the antenna.

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基于特性模式分析的紧凑型超宽带天线，具有无线应用的WLAN和x波段陷波特性

在FR4基板上设计并制造了一种用于超宽带和超宽带双频陷波应用的紧凑圆形结构单极天线。超宽带天线具有圆形和三个椭圆作为辐射面和低于四分之一的低地平面的混合结构。投影天线的整体尺寸为16 × 11 × 1.6 mm3，−10 dB阻抗带宽为113% (3.7-13.3 GHz)。此外，使用散热器上的两个倒u形槽创建了两个频段缺口。这些插槽的频段从5-5.6 GHz到7.3-8.3 GHz，涵盖IEEE 802.11、Wi-Fi、WLAN和整个x波段卫星通信。进行了全面的频域和时域分析，验证了投影天线设计的有效性。此外，建立了投影天线设计的电路模型，并对其性能进行了评价。此外，与使用模拟表面电流分布来验证功能的传统技术不同，使用特征模式分析(CMA)来更深入地了解天线的不同模式。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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J. Sens. Actuator Networks

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