Premium
Gain augmentation of a CPW fed printed miniature UWB antenna using frequency selective surface
Author(s) -
Kundu Surajit
Publication year - 2018
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.31246
Subject(s) - monopole antenna , dipole antenna , optics , radiation pattern , antenna efficiency , antenna measurement , antenna (radio) , antenna gain , antenna factor , coaxial antenna , omnidirectional antenna , materials science , physics , acoustics , electrical engineering , engineering
A co‐planar waveguide fed compact ultra‐wideband antenna is proposed in this article. The antenna dimension is reduced from 25 × 15 × 0.8 to 17.5 × 14.5 × 0.8 mm 3 by lateral half cut of the radiating element. This miniature antenna gives a wide impedance bandwidth from 6 to 20.9 GHz with gain variation of 2‐4 dBi, average radiation efficiency of 85% and monopole like E‐plane and omnidirectional H‐plane pattern as per the experimental study. More than 3 dBi gain enhancement is achieved by adding dual frequency selective surfaces of dimension 17.5 × 17.5 mm 2 each at the back side of antenna. The proposed antenna with frequency selective surface package provides more radiation to the broadside direction and an efficiency of >75%, without affecting the impedance band. Linear antenna transfer function and non‐varying group delay response are also reported.