International Science Community Association Research Journal of Engineering Sciences 2278 - 9472 3 7 2014 July 26 Utilizing Implanted Antennas to Detect the Presence of Oral Cancers 22 27 EN Ngunzi V.K. 1 Department of Engineering and Technology, Kisii University, Kisii, KENYA Mugucia S.W. 2 Department of Biomechanical and Environmental Engineering, Jomo Kenyatta University of Agriculture and Technology, Nairobi, KENYA Kituu G.M. 3 Arjun K.S. 1 Department of Mechanical Engineering, Manav Bharti University, Solan, INDIA Gopu K.B. 2 Dohare Devendra 1 Department of Civil Engineering, S.G.S.I.T.S. College, Indore, MP, INDIA Nagori Kaustubh 2 (Civil) Environmental Engineering Dept., S.G.S.I.T.S. College, Indore, MP, INDIA Hammouda O.K. 1 German University in Cairo New Cairo City, Cairo, EGYPT Allam A.M.M. 2 > Research Article 2014 6 26 2014 July 26 This article presents a design of spiral PIFA antenna in MICS band (402 - 405 MHz) for detecting the oral cancer. The antenna is fabricated on the Roger4350 substrate material which has a thickness of 1.524 mm and a relative permittivity of = 3.66 with overall dimension of 33.8 x 33.8 mm. The mouth is modeled according to the CST Voxel Katja model and the electrical properties of individual tissues. A human mouth model and the antenna are simulated using CST software. Testing on the face is done in three locations, left and right cheeks and under the chin. Testing on malignant tumors is only simulated on the CST. There is a noticeable resonance frequency shift of the return-loss when the malignant tissues are considered. There is a good matching between the measured and simulated results. Copyright@ International Science Community Association