Abstract
AbstractIn this article, a compact planar monopole antenna for ultra‐wideband applications with band‐notched characteristic is presented. The antenna with a small size of 30 mm × 39.3 mm operates from 2.57 to over 12 GHz with return loss larger than 10 dB and the radiation patterns similar to that of dipole antennas. A pair of ground stubs locating along the edge of the ground plane is used to create the band‐notch characteristic. The band notch covers the wireless area network band from 5.15 to 5.825 GHz. The center‐notch frequency and notch bandwidth can be adjusted using the dimensions of the ground stubs. Prototype of the proposed antenna is designed, fabricated, and studied. The band‐notched characteristics, return loss, radiation patterns, peak gains, and efficiencies of the antenna are studied using both computer simulation and measurements. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:523–529, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25817
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