Sreelakshmi Gopinathan, Samira Al'Habsi, Thuraiya Al'Ruzaiqi and Khalid Al'Hadharami
Middle East College, Oman
Posters & Accepted Abstracts: J Bioengineer & Biomedical Sci
Microwave imaging is a promising method in biomedical applications such as breast cancer detection due to its good penetration property, non-ionizing and non-invasive nature which has the potential to be a complementary modality to standard mammography. In this paper, an UWB microstrip-fed Vivaldi antenna for microwave imaging systems aimed for early breast cancer detection is presented. The Vivaldi antenna is designed to operate between 8.821 to 22.30 GHz with dimensions of 44.85x25.28 mm that permits good radiation within the frequency range. To achieve UWB performance, Taconic TLC-32 substrate which has relative permittivity of 3.2 has been used to simulate the antenna by using Antenna Magus Software. The simulation results show that the return loss is better than -10dB within the range of 7.143 GHz to 24.60 GHz with the maximum return loss of -37.56 dB at 18.39 GHz. A comparison of performance with various substrates including ROGERS RO4003C, TMM4 and Taconic are also presented in this paper.
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