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Investigation on the use of high‐permittivity substrate in stacked patch antenna fed by a coplanar waveguide
Author(s) -
Chen YihChien,
Tsai JianMin
Publication year - 2009
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.24157
Subject(s) - coplanar waveguide , return loss , microwave , bandwidth (computing) , permittivity , optics , materials science , radiation pattern , patch antenna , broadside , radiation , center frequency , microstrip antenna , optoelectronics , antenna (radio) , electrical engineering , physics , engineering , telecommunications , dielectric , band pass filter
In this article, the measurement results for the use of high‐permittivity material in stacked patch antenna, with coplanar waveguide feed line at 2.5 GHz, have been presented. With this technique, a 13% bandwidth (return loss < −10 dB) of center frequency at 2.5 GHz has been successfully achieved. The copolarization radiation is strongest at θ ≅ 0° from the broadside both in the xz‐ and yz‐ planes. The antenna has a 3 dB beam angle of about 110° and 85° in the xz‐ and yz‐ planes, respectively. Peak antenna gain is about 4.9 dBi, and the gain is >2.0 dBi for frequencies within in the −10 dB S 11 bandwidth. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 715–717, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24157