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A compact and small printed monopole antenna for WLAN applications
Author(s) -
Chen WenShan,
Lee BauYi,
Chang PoYuan
Publication year - 2011
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.26089
Subject(s) - monopole antenna , electrical engineering , antenna (radio) , engineering , electronic engineering , computer science , telecommunications
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. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26089