Abstract
AbstractA novel compact PCB printed quad‐band antenna using a composite loop and PIFA structure for mobile phones is presented. The proposed antenna is composed of a meandered loop antenna and PIFA having the merits of the loop antenna and PIFA. The antenna element is printed on the top ungrounded portion (34.5 mm (W) × 17 mm (L)) of a 0.8‐mm thick FR4 substrate of a mobile phone PCB. Despite the low volume and low profile of the antenna structure, it can fulfill the bandwidth requirements of the GSM900, DCS1800, PCS1900, and UMTS2100 systems with sufficiently high efficiency, thus making it a promising antenna candidate for future mobile terminals. The antenna design was carried out using a high‐frequency structure simulator (HFSS) by Ansoft, and the modeling structure of the mobile handsets was obtained with the aid of the commercially available simulation software SEMCAD. The overall radiation pattern is suitable for mobile applications. To demonstrate the proposed design, simulated and measured results are presented and discussed. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1332–1336, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24309
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