Printed monopole array antenna for WLAN operation in the 2.4/5.2/5.8 GHz bands

A printed monopole array antenna consisting of three equally-spaced equilateral-triangular monopoles suitable for 2.4/5.2/5.8-GHz wireless local area network (WLAN) operation is presented. Among the three monopoles, the center one has a larger size, which controls the excitation of the 2.4-GHz band, and the other two (of smaller size) are for the excitation of the 5.2/5.8-GHz bands. Owing to the array effect, the two smaller ones provide enhanced antenna gain (>6 dBi across the operating band) for WLAN operation in the 5.2/5.8-GHz bands. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 37: 370–372, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10921