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UWB monopole antenna with circular polarization
Author(s) -
Rahim Sharul Abdul,
Danesh Sh.,
Okonkwo Uche Anicetus,
Sabran Mursyidul,
Khalily Mohsen
Publication year - 2012
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.26741
Subject(s) - monopole antenna , ground plane , microstrip antenna , optics , bandwidth (computing) , electrical engineering , physics , return loss , acoustics , engineering , antenna (radio) , telecommunications
In this article, ultra‐wideband (UWB) monopole antenna with circular polarization (CP) is designed and implemented. The proposed antenna consists of an asymmetric shaped radiator fed by a microstrip line and a limited ground plane on the back side of the substrate. The overall size of proposed antenna is 28 mm × 29 mm, which is suitable for mobile devices. The antenna is fabricated on inexpensive FR4 a dielectric constant of, loss tangent tan δ = 0.019 with thickness of 1.6‐mm. The measured results show that the proposed monopole antenna has a very wide bandwidth from 2.98 to 10.93 GHz that covers the UWB application range and defined by 10‐dB return loss. Furthermore, a very wide CP bandwidth of 3‐dB axial ratio bandwidth that ranges from 7.18 to 10.01 GHz is achieved. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:949–953, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26741