Dual‐band circular polarization square patch antenna for GPS and DMB

We designed and implemented a dual-band square patch antenna with circular polarization for the reception of GPS and DMB. Resonant elements of 1.5- and 2.6-GHz bands are entire square patch and inner square patch divided by slots, respectively. And impedance bandwidths (VSWR ≤ 2) are 61 MHz (3.84%) for 1.5-GHz band and 138 MHz (5.15%) for 2.6-GHz band. The implemented antenna has a good radiation pattern characteristic. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2925–2926, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22972