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Design of wideband antenna with band notch characteristics based on single notching element
Author(s) -
Ur Rahman Saeed,
Cao Qunsheng,
Wang Yi,
Ullah Habib
Publication year - 2019
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.21541
Subject(s) - coplanar waveguide , standing wave ratio , split ring resonator , notching , antenna (radio) , feed line , wideband , resonator , multi band device , materials science , impedance matching , optics , physics , optoelectronics , electrical engineering , electrical impedance , telecommunications , engineering , microstrip antenna , microwave , metallurgy
In this article, a coplanar waveguide (CPW) fed planner monopole antenna with a compact size of 0.32 λ × 0.30 λ × 0.0056 λ mm 3 is presented. The radiator is fed with 50 Ω CPW feed line that provides impedance matching from 1.7 to 30 GHz for VSWR ≤2. In addition, three narrow bands are filtered out in the ultra‐wideband (UWB) range. The narrow notched bands are filtered for WiMAX (3.52‐4.2 GHz), WLAN (5.04‐5.40 GHz), and X band (8.22‐9.10 GHz) application. The rejecting bands are achieved by loading a single tri‐square ring resonator (SRR) on the backside of the feed line. The dimensions of SRR control the notch resonance frequencies. A single‐, dual‐, and tri‐notch frequencies have been achieved by using single‐, dual‐, and tri‐SRR, respectively. The measured results of antenna structures in the absence and presence of the SRR are compared with the simulations. The measured results validate the proposed design.