Open AccessMultimode electric ring resonator (ERR) for ultra-wideband (UWB) antenna with multi-notch band
Author(s) -
I. Vendik,
Alexander Rusakov
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1461/1/012183
Subject(s) - split ring resonator , omnidirectional antenna , monopole antenna , coplanar waveguide , optics , radiation pattern , multi mode optical fiber , physics , resonator , antenna (radio) , optoelectronics , electrical engineering , microwave , telecommunications , computer science , engineering , optical fiber
The electric ring resonator (ERR) is widely used for a design of metamaterials. The planar multimode ERR is considered as a promising structure for a design of multiband microwave devices. The ultra-wideband (UWB) planar antenna with multi-notch band is designed as a circular metallic patch fed by a coplanar waveguide (CPW) loaded with the ERR. To achieve the notched characteristics at desirable frequencies, the multimode ERR is incorporated into the CPW feedline of the planar UWB antenna. The notched frequency band is controlled by dimensions of the ERR structure. The antenna demonstrated a VSWR lower than 2.5:1 and consistent monopole-like, omnidirectional radiation patterns over a 4.8:1 bandwidth. A prototype of the antenna with physical dimensions of 50×50×1.52 mm demonstrates multi-notch characteristic at 3.5, 5.8, and 7.5 GHz in the 2.5 - 12 GHz frequency range