Design of Dual-Band Wide Slot Monopole Antenna

Abstract

A wide slot dual band rectangular microstrip antenna with an L-shaped notch on radiating monopole antenna is presented in this paper. A wide rectangular shaped slot is etched from the ground in order to minimize the volume of the ground plane impact for portable devices. The performance of antennae for portable devices is commonly excited by the ground plane to result in variation in terms of operating frequency, impedance bandwidth and radiation pattern. This in turn increases the current distribution on the ground plane. It is also noticed that the impedance matching level is also stronger with the reduction of ground plane excitation. The antenna features bidirectional radiation pattern across all the operating centre frequencies. Antenna exhibits a dual band simulated impedance bandwidth (-10 dB, IBW) at a centre frequency 1.45 GHz and 4.05 GHz, respectively, ranging from 1.2–1.7 GHz (i.e. 33.5%) and 2.3–5.8 GHz (86.4%) respectively. The peak gain is 5.41 dBi at 2.5 GHz frequency. This antenna operates at GPS, LTE band 1.4/1.5 GHz, also covering the 2.4/5.2/5.8-GHz WLAN bands and 2.5/3.5/5.5-GHz WiMAX bands.

Keywords: Impedance bandwidth, LTE, sot antenna, WiMAX, WLAN

Cite this Article: Reshmi Dhara, Sarita Kumari Gupta, Sanjay Kumar Jana. Design of Dual-band Wide Slot Monopole Antenna. International Journal of Distributed Computing and Technology. 2020; 6(1): 1–11p.