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Planar branched monopole antenna for UWB applications
Author(s) -
Jacob K. Francis,
Suma M. N.,
Raj Rohith K.,
Joseph Manoj,
Mohanan P.
Publication year - 2007
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.22045
Subject(s) - monopole antenna , standing wave ratio , radiation pattern , microstrip antenna , ground plane , dipole antenna , antenna measurement , planar , coaxial antenna , electrical engineering , antenna (radio) , physics , acoustics , engineering , computer science , computer graphics (images)
Development of a compact microstrip‐fed, branched monopole antenna for ultra wide band (UWB) applications is presented. By suitably embedding branches on the top edge of the strip monopole, an UWB response can be easily achieved by merging different resonances. The simulated and experimental results demonstrate that the proposed antenna achieves more than 3:1 impedance bandwidth for 2:1 VSWR criteria. The antenna exhibits nearly omni directional radiation characteristics and moderate gain in the entire band. The proposed antenna is printed on a FR4 substrate of ε r = 4.4 and thickness h = 1.6 mm and having an overall dimension of 65 × 35 mm 2 including the ground plane. The parameters that affect the performance of the antenna are presented and discussed. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 45–47, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22045