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Special Issue Article Open Access
A monopole antenna is a resonator antenna and has omni-directional radiation pattern. Slots used in monopole antenna for performing band- notching function by eliminating the interference in wireless communications. This letter presents a novel printed monopole antenna for ultrawideband applications with dual band-notched function. The antenna structure consists of a square radiating patch with an inverted Tshaped ring slot surrounded by a C-shaped slot for single band notching function. By inserting an inverted T-shaped parasitic structure inside the inverted T-shaped slot dual band-notching is achieved. A small ground slots are inserted to increase the bandwidth of planar monopole antenna with microstrip-fed. The antenna has an operating range of 3.05-11.5 GHz. The effect of slot is studied for varying the notch band operation of the antenna without changing the nature of omni-directional radiation characteristics in its operating band. The issue on monopole antenna with effects of slots and feed line is obtained.
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Author(s): V. Madhankumar , A. Manikandan