Design of compact ultra wideband antenna for microwave medical imaging application

Adib Othman (Universiti Teknikal Malaysia Melaka (UTeM))
Nur Ishmah Sabirah Shaari (Universiti Teknikal Malaysia Melaka (UTeM))
Abdullah M. Zobilah (Universiti Teknikal Malaysia Melaka (UTeM))
Noor Azwan Shairi (Universiti Teknikal Malaysia Melaka (UTeM))
Zahriladha Zakaria (Universiti Teknikal Malaysia Melaka (UTeM))

Indonesian Journal of Electrical Engineering and Computer Science
Vol 15, No 3: September 2019

A compact ultra wideband (UWB) antenna for operation at 6 GHz intended for microwave medical imaging (MMI) application is proposed. The microstrip patch antenna (MPA) was design in hexagon shape which is contain H-slot at the centre top of the patch and a slot at the ground. Those slots method is utilised to enhance the operating bandwidth as well as minimising the antenna’s impedance mismatch caused by its proximity to material. Results shows that, the implementation of slot on the patch has profoundly enhance the bandwidth (BW) of the antenna to 503.54 MHz. Measurement of fabricated antenna produce significant result in term of producing wide bandwidth of 520 MHz, with slightly shifting on operating frequency. Therefore, it has been proved that the required performance of UWB antenna has been achieved successfully.