Browsing by Author "Bilgin, Egemen"
Now showing items 1-8 of 8
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An antipodal vivaldi antenna design for torso imaging in a coupling medium
Joof, Sulayman; Doğu, Semih; Bilgin, Egemen; Çayören, Mehmet (IEEE, 2021)An antipodal Vivaldi antenna designed to operate in a coupling medium with a relative dielectric constant of epsilon(r) = 25 for microwave imaging of torso is presented in this paper. The proposed antenna is similar to the ... -
Differential microwave imaging of cerebral hemorrhage via dort method
Bilgin, Egemen; Dilman, İsmail; Doğu, Semih (IEEE, 2023)Bleeding in the brain tissues may cause fatal health conditions and continuous monitoring of the change in this blood accumulation becomes important in the first few hours after the incident. The continuous post-event ... -
Feasibility of distorted born iterative method for detecting early stage of heart failure
Doğu, Semih; Bilgin, Egemen; Joof, Sulayman; Akıncı, Mehmet Nuri (IEEE, 2020)In this paper, we analyze the feasibility of using microwaves to detect early stage of congestive heart failure, which causes water accumulation in the lungs. To this aim, a slice from realistic human torso phantom, which ... -
Microwave imaging of breast cancer with factorization method: SPIONs as contrast agent
Coşğun, Sema; Bilgin, Egemen; Çayӧren, Mehmet (Wiley, 2020)Female breast at macroscopic scale is a non-magnetic medium, which eliminates the possibility of realizing microwave imaging of the breast cancer based on magnetic permeability variations. However, by administering ... -
A modified newton method formulation for microwave imaging
Bilgin, Egemen; Doğu, Semih; Coşğun, Sema; Çayören, Mehmet (IEEE, 2020)A new variant of Newton type methods has been developed for quantitative microwave imaging. To deal with the ill-posedness of the inverse problems, standard Newton type methods involve a linearization of the so called data ... -
Monitoring of intracerebral hemorrhage with a linear microwave imaging algorithm
Dilman, Ismail; Bilgin, Egemen; Akinci, Mehmet Nuri; Cosgun, Sema; Dogu, Semih; Çayören, Mehmet; Akduman, Ibrahim (Springer, 2022)Intracerebral hemorrhage is a life-threatening condition where conventional imaging modalities such as CT and MRI are indispensable in diagnosing. Nevertheless, monitoring the evolution of intracerebral hemorrhage still ... -
Quasi-newton based inversion method for determining complex dielectric permittivity of 3D inhomogeneous objects
Coşğun, Sema; Bilgin, Egemen; Çayören, Mehmet (IEEE, 2022)We present a new method for determining the complex dielectric permittivity profile of 3D inhomogeneous dielectric objects from measurements of the scattered electric field vectors in the frequency domain. The method is ... -
Single-slice microwave imaging of breast cancer by reverse time migration
Bilgin, Egemen; Cayoren, Mehmet; Joof, Sulayman; Cansız, Gökhan; Yılmaz, Tuba; Akduman, İbrahim (Wiley, 2022)Purpose Microwave imaging of breast cancer is considered and a new microwave imaging prototype including the imaging algorithm, the antenna array, and the measurement configuration is presented. The prototype aims to project ...
