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CPW-FED MINIATURIZED ISOSCELES TRIANGULAR SLOT UWB PLANAR ANTENNA WITH TRIPLE BAND-NOTCHED CHARACTERISTICS

In this paper, a compact triangular defected ground plane monopole antenna with 5G, WLAN, and downlink/uplink of X-band notched characteristics for UWB applications is presented. The initial design consists of a CPW rectangle-shaped patch with a triangular, slotted ground plane to obtain ultra-wideband feature. The 3.3–3.7 GHz for the 5G band is eliminated by inserting dual symmetrical Tshaped slots at the upper edge of the ground plane. Further, a metamaterial as dual symmetrical single split ring resonator slits is etched at the bottom edge of the ground plane to suppress electromagnetic interference at IEEE upper WLAN band from 5.72 to 5.84 GHz. To restrict the interferences with the existing downlink and uplink for X-band signals from 7.1 to 8.39 GHz, we load a single I-slot to the radiator patch. The small size of the presented triple band eliminated antenna makes it a candidate suitable for recent communication systems.