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Quarter‐band internal antenna design using three branches for GPS, UMTS/WCDMA, ISM, and SDMB band operation
Author(s) -
Jang Byungchan,
Kim Cheyoung,
Park Jeungkeun
Publication year - 2008
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.23345
Subject(s) - hfss , anechoic chamber , miniaturization , engineering , ground plane , antenna (radio) , return loss , umts frequency bands , electrical engineering , microwave , electronic engineering , microstrip antenna , telecommunications
A design scheme of a quarter‐band internal antenna is proposed for use in GPS, UMTS/WCDMA, ISM, and SDMB bands. The folded metal plates of the three branches are mounted on a dielectric‐coated ground plane for size miniaturization and durability. For a multiband operation the sectional antenna corresponding to each band was designed, combined, and finally trimmed. The return loss of the suggested antenna was calculated by a commercial HFSS simulator and the results are compared with measured return loss, which shows a good agreement between them. Gain and radiation pattern are also measured by the field measurement system in an anechoic chamber. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1227–1232, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23345