A new omnidirectional monopole antenna well suited to application in a wireless universal serial bus dongle for wideband operation is presented. The antenna is an L-shaped metal-plate monopole antenna consisting of a rectangular monopole element and a matching portion. The antenna is suitable to be mounted at the top region of a host dongle as a concealed antenna and can provide a very wide operating bandwidth of larger than 6.8 GHz (∼3.4–10.2 GHz). In addition, omnidirectional radiation is obtained for frequencies across the operating bandwidth. Effects of the system ground-plane length on the antenna's impedance and radiation characteristics are also analyzed. Details of the proposed antenna are described, and a prototype of the design example is constructed and studied. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 625–628, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22217

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Volume49, Issue3

March 2007

Pages 625-628

Wideband omnidirectional L-shaped monopole antenna for a wireless USB dongle

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Wideband omnidirectional L-shaped monopole antenna for a wireless USB dongle

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