Abstract
AbstractA novel design of semicircular slot antenna with dual‐broadband operation for 2.4/5 GHz wireless local network area (WLAN) is proposed. With the use of an arc‐shaped strip inset along the circle edge of the semicircular slot antenna, a new resonant mode close to the second operating mode of the regular semicircular slot antenna is excited to enhance the operating bandwidth of the high band, and the obtained impedance bandwidths for two operating bands can reach about 14.8% for 2.4 GHz band and 22.0% for 5 GHz band, which cover the required bandwidths of IEEE 802.11b/g (2.4–2.484 GHz) and IEEE 802.11a (5.150–5.950 GHz). The measured peak antenna gains for the operating frequencies across dual WLAN bands are measured to be, respectively, 4.7 and 4.9 dBi with the gain variations within 0.5 dBi. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2165–2169, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22670
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