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首页> 外文期刊>Journal of Microwaves, Optoelectronics and Electromagnetic Applications >A New Technique Using Axially Slotted Microstrip Line for Antenna Impedance Matching Designs
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A New Technique Using Axially Slotted Microstrip Line for Antenna Impedance Matching Designs

机译：轴向开槽微带线用于天线阻抗匹配设计的新技术

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摘要

A new technique is presented for designing microstrip patch antennas with very good input impedance matching. The analysis is carried out for 1.78 GHz, 2.42 GHz and 3.46 GHz rectangular patch antennas printed on low-cost fiberglass substrates (FR-4), mounted on a ground plane and fed by a microstrip line. The antenna impedance matching is obtained using a slotted microstrip line feeder. The use of the proposed impedance matching technique showed considerable improvement from the reflection coefficient point of view, with reduction of about 20 dB at the resonant frequency, without modifying the original dimensions of the antenna patch elements or the width of the feeding microstrip line. Numerical characterization is carried out using Ansoft Designer software and iterative method WCIP. Prototypes are fabricated and measured, for validation purpose, showing good agreement when compared to simulated results.
机译：提出了一种新技术，用于设计具有非常好的输入阻抗匹配的微带贴片天线。针对在低成本玻璃纤维基板（FR-4）上印刷，安装在接地板上并由微带线供电的1.78 GHz，2.42 GHz和3.46 GHz矩形贴片天线进行了分析。使用开槽的微带线馈线获得天线阻抗匹配。从反射系数的角度来看，所提出的阻抗匹配技术的使用显示出相当大的改进，在谐振频率下降低了约20 dB，而没有改变天线贴片元件的原始尺寸或馈电微带线的宽度。使用Ansoft Designer软件和迭代方法WCIP进行数值表征。为了进行验证，制造并测量了原型，与模拟结果相比，它们显示出良好的一致性。

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