A multiband and wideband frequency reconfigurable slotted bowtie antenna

Izni Husna Idris (Universiti Teknologi Malaysia)
Mohamad Rijal Hamid (Universiti Teknologi Malaysia)
Kamilia Kamardin (Universiti Teknologi Malaysia)
Mohamad Kamal A. Rahim (Universiti Teknologi Malaysia)
Huda A. Majid (Universiti Tun Hussein Onn Malaysia)

Indonesian Journal of Electrical Engineering and Computer Science
Vol 19, No 3: September 2020

A multiband and wideband frequency reconfigurable antenna is presented. A wideband from 3.5 GHz to 9.0 GHz is achieved by introducing one stripline in the middle of a slotted bowtie antenna, whereas multiband is obtained by integrating an additional two slotted arms at the end of bowtie-shaped. As a result, the antenna operated at multiband mode (1.7 GHz and 2.6 GHz) and wideband mode (3.5 GHz to 9.0 GHz) simultaneously. The reconfigurability of the antenna is attained through switches. Five states are achieved with three  pairs of switches configurations. All results are presented and discussed, including S11, current distribution, radiation pattern, and gain. The antenna is suitable to be used in multimode communication systems.