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首页> 外文期刊>Microwave and optical technology letters >A COMPACT AND SMALL PRINTED MONOPOLE ANTENNA FOR WLAN APPLICATIONS
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A COMPACT AND SMALL PRINTED MONOPOLE ANTENNA FOR WLAN APPLICATIONS

机译：适用于WLAN应用的紧凑小巧的单极天线

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摘要

This article proposes a compact and small printed monopole antenna for wireless local area network (WLAN) applications. The substrate used in this design is an FR4 substrate with a permittivity of 4.4, which is an inexpensive and widely used printed circuit board (PCB). The overall dimensions of the proposed antenna (25×20×1.6 mm~3) can be easily applied in todays portable wireless products. The low-frequency band centered at 2.4 GHz is resonated by the coupling between the U-liked ground plane and 50-ohm microstrip feed-line. When the rectangular patch A is added on the ground plane, the high-frequency band centered at 5.48 GHz is obtained. Because of the different polarization direction, the radiation patterns of low-frequency band in X-Z plane are similar to that of high-frequency band in Y-Z plane. The 10-dB impedance bandwidths (2.39-2.52 and 4.97-6.07 GHz) meet the WLAN application bands. With the advantages of dimension, cost, and performance, the proposed antenna appears to be a promising candidate for WLAN applications.
机译：本文提出了一种紧凑，小型的印刷单极天线，用于无线局域网（WLAN）应用。此设计中使用的基板是介电常数为4.4的FR4基板，它是一种廉价且广泛使用的印刷电路板（PCB）。所建议的天线的整体尺寸（25×20×1.6 mm〜3）可以很容易地应用于当今的便携式无线产品中。以U型接地层和50欧姆微带馈线之间的耦合，使以2.4 GHz为中心的低频频带产生共振。当在地面上添加矩形贴片A时，将获得以5.48 GHz为中心的高频频段。由于极化方向不同，X-Z平面中的低频段的辐射方向图与Y-Z平面中的高频段的辐射方向图相似。 10 dB的阻抗带宽（2.39-2.52和4.97-6.07 GHz）满足WLAN应用频段。凭借尺寸，成本和性能的优势，拟议的天线似乎是WLAN应用的有前途的候选者。

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