In this study, two new printed slot antennas have been simulated and fabricated using a single layer of FR4 substrate for modern wireless applications. The first printed slot antenna with etched stair-step topology in the ground plane is proposed to achieve the single-band operation. This topology is based on two components of asymmetrical step-impedance resonator (SIR) and one component of symmetrical SIR. The first designed printed slot antenna satisfies the requirements of WLAN applications at 5.75 GHz. The second printed slot antenna is a developed version of the first one with one inserted component of symmetrical SIR and one asymmetrical SIR component to be operated as a multiband antenna applicable for WiMAX, WLAN, and X-band downlink satellite systems at 3.5, 5.75, and 7.75 GHz, respectively. The proposed antennas have small sizes, and competitive electrical specifications than many reported SIR and non-SIR antennas in the literature.

在这项研究中，使用单层 FR4 基板模拟和制造了两个新的印刷缝隙天线，用于现代无线应用。提出了第一个在接地平面上具有蚀刻阶梯拓扑的印刷缝隙天线，以实现单频段操作。这种拓扑结构基于非对称步进阻抗谐振器 (SIR) 的两个组件和对称 SIR 的一个组件。第一个设计的印刷缝隙天线满足 5.75 GHz WLAN 应用的要求。第二个印刷缝隙天线是第一个的开发版本，其中插入了一个对称 SIR 组件和一个非对称 SIR 组件，作为适用于 3.5、5.75、WiMAX、WLAN 和 X 波段下行链路卫星系统的多波段天线，和 7.75 GHz，分别。建议的天线尺寸小，