Abstract
In this study, a novel microstrip-fed planar antenna with triple notched bands is presented for various ultra-wideband (UWB) applications. The antenna comprises a circular radiating patch, a 50 Ω microstrip feed line, a partially slotted ground plane, and a couple of modified capacitance loaded loop (MCLL) resonators. The novel MCLL resonators are symmetrically located near the feed line to achieve the triple band-notched characteristics, such as 3.4–3.7 GHz for WiMAX, 5.15–5.825 GHz for wireless local area network and 7.25–8.395 GHz for X-band satellite communication. The good performance of triple notched bands, stable gain and omnidirectional radiation patterns in the operating bands make the proposed antenna a good candidate for UWB utilisation.
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