A Novel UWB Antenna Design for Noninvasive Brain Stroke Diagnosis Systems

The brain stroke diagnosis is one of the third rank listed in the death and psychological disabilities in behind of heart diseases and cancers. It affected the long term disabilities which go in front of the economic impact. For that reason, the real time diagnosis is required for different clinical treatments. Ischemic stroke patients are given thrombolytic treatment which could be critical for hemorrhagic patients. Presently, two different kinds of stroke diagnosis techniques are available in the research and development namely, image reconstruction and statistical classification. The microwave based tomography systems require an antenna which is operated under multiple and single frequency coverage. A novel micro-strip patch antenna design for the stroke diagnosis application based microwave tomography system is the major objective presented in this paper. The design consists of ?U shaped antenna with dimension 50*40*1 mm3 and FR4 dielectric constant 4.4 mounted on the ground plane. It provides wide band of 2.6 - 4.2 GHz frequency. This design is very much suitable for the detection of brain death attack, blood bleeding in brain surface and stroke. The design provides reflection loss about -29 dB at 3.6 GHz. The human phantom brain model is used for simulation and provides reflection loss about -24 dB at 3.2 GHz. These simulation results are analyzed with the results obtained from fabricated models. The fabricated patch antenna provides reflection loss about -18.35 dB at 4 GHz. The results obtained from fabricated models are compared with simulation results. [PUBLICATION ABSTRACT]