A compact and small printed monopole antenna for WLAN applications

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Title:	A compact and small printed monopole antenna for WLAN applications
Authors:	Chen, Wen-Shan Lee, Bau-Yi Chang, Po-Yuan 陳文山李寶宜張博源 (東方設計學院電機工程系)
Contributors:	東方設計學院電機工程系
Keywords:	WLAN antenna portable wireless products IEEE 802.11 standards 50-ohm microstrip feed-line coupling
Date:	2011-07
Issue Date:	2015-07-15 14:43:29 (UTC+8)
Abstract:	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 mm3) 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. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26089
Relation:	Microwave and Optical Techmology Letters, Vol.53 no.7, pp.1518-1522
Appears in Collections:	[Department of Electrical Engineering] journal

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