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Dual‐band monopole antenna excited by a capacitive coupling feed for WLAN applications
Author(s) -
Huang ChihYu,
Lin HsiaoCheng,
Kuo JiehSen
Publication year - 2007
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.22380
Subject(s) - electrical engineering , multi band device , wi fi , monopole antenna , capacitive coupling , bandwidth (computing) , microstrip antenna , microwave , capacitive sensing , engineering , wireless , microstrip , electrical length , electronic engineering , physics , antenna (radio) , optoelectronics , telecommunications , antenna factor , wireless network , voltage
A printed dual‐band T‐shaped monopole antenna with a shorted strip fed by a coupling microstrip line for wireless communication in the wireless local‐area network (WLAN) band is studied. The proposed antenna can provide two separate impedance bandwidths of 101 MHz (about 4.1% centered at 2.45 GHz) and 1490 MHz (about 27% centered at 5.5 GHz), making it easier to cover the required bandwidths for WLAN operation in the 2.45 GHz band (about 3.4% bandwidth required) and 5.2/5.8 GHz bands (about 13% bandwidth required). We can easily find the enhancement of impedance bandwidth by using capacitive coupling feed. Details of the proposed antenna design and experimental results are presented and discussed. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1135–1138, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI.10.1002/mop.22380