2.45 GHz inter‐/intraboard wireless communication using a CPW‐fed vertical bow‐tie antenna

Abstract

AbstractCoplanar waveguide (CPW)‐fed vertically standing bow‐tie antennas for 2.45 GHz ISM band applications for inter‐/intraboard wireless communication are presented. The vertical antenna scheme provides wave propagation in the horizontal direction parallel to the substrate, allowing effective in‐plane board‐to‐board communication. The monopole bow‐tie antenna is implemented in an air‐lifted fashion, resulting in high efficiency, broad bandwidth, and small footprint compared with the conventional surface mounted patch type antenna. The vertical bow‐tie antenna with a height of 22.4 mm and a flare angle of 43° shows a 10‐dB bandwidth of 20.4%, a footprint of ∼1 mm2, and a height reduction of 33% compared with a cylindrical monopole counterpart. A numerical analysis has been performed between 1 and 4 GHz and the transmission characteristics using two identical antennas have been performed at 2.45 GHz with a network analyzer. The numerical results are in good agreement with experimental data. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 266–269, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23988