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Published in:
2016 | OriginalPaper | Chapter
Design of a Compact Novel Planar Dual Band-Notched UWB Antenna
Authors : Sanjiv Tomar, Ajay Kumar
Published in: Proceedings of the International Conference on Recent Cognizance in Wireless Communication & Image Processing
Publisher: Springer India
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Abstract
In this paper, a compact planar ultra-wideband (UWB) antenna with double band-notched characteristics has been presented. The design involves a lamp post-shaped planar radiator fed through a microstrip line of width 2.6 mm, with a U-shaped slot and a C-shaped slot etched on the radiator, with a slotted ground plane on the other side of the substrate. The proposed antenna has been realized using CST MWS SuiteTM. The antenna has a size of 30 × 30 × 1.6 mm3 prototyped on FR4 substrate. The proposed antenna exhibited a bandwidth of more than 7.5 GHz, i.e., 2.68–11.75 GHz for VSWR ≤ 2 over the entire range except at two notched bands for WiMax systems at 3.3–3.7 GHz and WLAN systems at 5.15–5.85 GHz. The average gain of the antenna is 4.5 dBi with a variation of ±1.8 dBi over the entire impedance bandwidth. The proposed antenna has demonstrated nearly omnidirectional radiation pattern over the entire impedance bandwidth except for the two notched bands centered at 3.5 and 5.5 GHz.