A Triple Band-Notched UWB Antenna for Microwave Imaging Applications

In this paper, a unique wideband monopole triple band-notched antenna for microwave imaging applications is proposed. It is designed on 38 X 38 mm(2) Fire-Resistant (FR-4) epoxy substrate. It can avoid the inferences which rise from the Wi-MAX (3.3 GHz - 3.7 GHz), WLAN (5 GHz - 6 GHz), and X-band satellite communication uplink band (7.9 GHz - 8.4 GHz). Three slots are introduced in the radiating part to achieve the band rejection characteristics. The designed antenna is enhanced by utilizing electromagnetic simulation software Ansoft HFSS. The prototype antenna is fabricated and tested. The designed antenna operates in a band from 3.1 to 11 GHz and observed excellent radiation characteristics. A 50 mm 3-D breast model is designed and simulated specific absorption rate values are estimated for glandular, fatty, skin and tumor to detect cancer in the initial time.