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A compact CPW‐FED wideband metamaterial antenna with EBG loading
Author(s) -
Gupta Ashish,
Chaudhary Raghvendra Kumar
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.29384
Subject(s) - monopole antenna , patch antenna , ground plane , antenna efficiency , antenna measurement , metamaterial , microstrip antenna , coaxial antenna , wideband , optoelectronics , physics , radiation pattern , metamaterial antenna , bandwidth (computing) , antenna factor , optics , antenna (radio) , electrical engineering , engineering , telecommunications
Two wideband CPW‐fed metamaterial antenna structures based on CRLH resonant approach are proposed and developed in this article. Antenna‐1 is basically an asymmetric CPW‐fed antenna, comprises of meandered line inductor, which is connected between patch and one of the CPW ground plane. Antenna‐2 is modified form of Antenna‐1 where conventional uniplanar electromagnetic bandgap (EBG) structures have been incorporated to enhance bandwidth of the antenna. It has been observed that Antenna‐2 is operating at 4.84–10.64 GHz equivalent to 74.9% measured fractional bandwidth with respect to Antenna‐1 with operating frequency 5.03–8.39 GHz equivalent to 50.1% fractional bandwidth. It is demonstrated that surface waves are suppressed effectively in the extended band. The radiation patterns of the Antenna‐2 are not influenced significantly with the incorporation of EBG and offers consistent radiation patterns throughout the operational bandwidth. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2632–2636, 2015