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首页> 外文期刊>Applied Computational Electromagnetics Society journal >Design of a Microstrip-Fed Printed-Slot Antenna Using Defected Ground Structures for Multiband Applications
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Design of a Microstrip-Fed Printed-Slot Antenna Using Defected Ground Structures for Multiband Applications

机译：利用带挠性接地结构的微带馈送印刷槽天​​线设计用于多频带应用

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摘要

This paper presents the design of a microstrip-fed, planar-printed, slot antenna using defected ground structures (DGSs) for multiband applications. The antenna structure consists of two groups of five straight slot elements. The slot elements in each group are of the same width but different lengths on the ground plane and separated by a small strip and a slot cut on both sides of the strip to interconnect the group of slots with each other. The microstrip line is designed on the front side of the PCB with a right angle for all the slots to make it easy to mount the slots and the microstrip with a monolithic microwave integrated circuit (MMIC). The proposed antenna is designed and simulated using an electromagnetic simulator based on the method of moment (MoM). For the validation the antenna was fabricated on a double-sided substrate material that was 0.79 mm thick with an area of 45 x 40 mm(2). The simulation and measurement results show that the antenna has good input-impedance bandwidths of S-11 = -10 dB at the five operating frequencies of 3.5, 4.1, 5, 6.4, and 6.8 GHz and that extends in the range 2 to 7.5 GHz. The measurements were found to be in good agreement with the simulation results for S-11 and provide a stable radiation pattern.
机译：本文介绍了一种采用带缺陷接地结构（DGS）的微带馈送，平面印刷缝隙天线的设计，适用于多频带应用。天线结构由两组五个直槽元件组成。每组中的插槽元件在接地平面上具有相同的宽度但长度不同，并由小条带和在条带两侧切割的插槽分隔开，以使插槽组彼此互连。微带线设计在PCB的正面，所有插槽均成直角，从而易于使用单片微波集成电路（MMIC）安装插槽和微带。所提出的天线是根据矩量法（MoM）使用电磁模拟器设计和仿真的。为了进行验证，天线是在0.79毫米厚，面积为45 x 40毫米（2）的双面基板材料上制造的。仿真和测量结果表明，该天线在3.5、4.1、5、6.4和6.8 GHz的五个工作频率下具有良好的S-11 <= -10 dB的输入阻抗带宽，并且在2至7.5的范围内扩展GHz。发现测量结果与S-11的模拟结果非常吻合，并提供了稳定的辐射方向图。

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