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Genetic algorithm optimization of a CPW fed UWB circular ring monopole with modified ground plane
Author(s) -
Rodrigues E. J. B.,
D'Assunção A. G.,
Lins H. W. C.,
Peixeiro C.
Publication year - 2016
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.29794
Subject(s) - coplanar waveguide , ground plane , monopole antenna , microwave , reflection coefficient , bandwidth (computing) , antenna (radio) , wideband , electronic engineering , engineering , physics , optics , electrical engineering , telecommunications
In this paper a coplanar waveguide (CPW) fed ultra‐wideband (UWB) circular ring monopole antenna with a modified ground plane is proposed. The dimensions of the antenna are obtained using a genetic algorithm (GA) optimization procedure. To proof the concept and validate the design antenna prototypes have been fabricated and tested. A good agreement is obtained between numerical simulation and experimental results. The input reflection coefficient is below −10 dB in the frequency range 2.52 GHz to 12 GHz, which corresponds to an impedance bandwidth of about 4.8:1, and the gain is about 3 dBi. The proposed antenna element seems to be suitable for UWB and cognitive radio spectrum sensing applications. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1319–1323, 2016