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A Miniaturized Monopole Antenna with Embedded Rectangular Notch for UWB Usage

Ultra-wideband applications have been an important part of wireless communication due to their low power consumption and high data rate. A small monopole antenna for ultra-wideband application is introduced and examined in this paper. The antenna comprises a rectangular patch with lower right angle edges cut for lower length high-frequency resonance. The Rogers RT/Duroid 5880 with an Er of 2.2 was employed as the substrate material. A partial ground plane configuration is used to ensure that the bandwidth of the antenna operation can be improved, and the quality factor reduced to increase back lobe radiation. The final dimensions attained after optimization is a low profile of 27 mm x 32 mm x 0.80 mm including the feeding mechanism. The monopole antenna has a low cost, high impedance bandwidth of 3.58 to 15.10 GHz at 10 dB return loss. The Antenna exhibits multiband characteristics at 20 dB return loss of 4.0 GHz to 5.5 GHz and 10.0 GHz to 11.0 GHz. The antenna achieved a VSWR of less than 2 in the operating frequency band, making the antenna very capable of wireless transmission. The proposed antenna will do well in ultra-wideband operations such as WLAN, WiMAX, and Wi-Fi. Furthermore, its low gain and wide-angle coverage makes it a good fit for urban centers, mobile devices, certain wearable technologies, and aircraft services that find their relevance in the UWB frequency spectrum.