This paper presents a novel approach of sensing the defect response after craniotomy on cranial surgery phantom models utilizing a short pulsed radar technique. The proposed antenna has demonstrated that the short pulse can be radiated without antenna's own distortion, which is a desirable characteristic for sensing defect response. The layered microwave head phantom has been developed for the purpose of emulating the healing stages of cranial surgery after craniotomy. The fabricated phantom has been validated with reference values reported in literature. The longitudinal scan has been performed for various skull thicknesses as a preliminary study. The one-dimensional pulsed profile has been obtained to achieve the pulse compression so that the defect response can be highlighted. The results obtained in this paper have the potential that the microwave based technique can be utilized for monitoring the healing stages for the future work.
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