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Small size tripleband monopole antenna with a parasitic element
Author(s) -
Sim ChowYenDesmond,
Chen HorngDean,
Yeh ChihHusan,
Lin HenLun
Publication year - 2015
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.28837
Subject(s) - monopole antenna , coplanar waveguide , antenna (radio) , microwave , impedance matching , parasitic element , electrical impedance , dipole antenna , radiation pattern , physics , electrical engineering , engineering , telecommunications
A small size (20 × 38.5 × 0.8 mm 3 ) coplanar waveguide (CPW)‐fed monopole antenna for wireless local area network and worldwide interoperability for microwave access applications is proposed. To achieve tripleband operation, the proposed monopole antenna is designed with a modified symmetrical U‐shaped printed structure attached with a parasitic element behind it. Good impedance matching is also attained by loading two dissimilar notches separately into the two CPW ground planes. The measured 10‐dB impedance bandwidths of the three operating bands (f L , f M , and f H ) are 16.96% (2.105–2.495 GHz), 28.72% (3.22–4.30 GHz), and 23.32% (4.895–6.125 GHz), respectively, and all bands of interest have yielded peak gain and radiation efficiency of more than 2.7 dBi and 65%. Detail process of designing the proposed antenna is explicitly shown, and vital parametric studies were also conducted by simulation. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:342–348, 2015