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Electromagnetic concentrator as an important wave- manipulation device plays important roles in receiving antenna, solar cell or similar devices. However, anisotropic and inhomogeneous material properties seriously impede the practical fabrication of the device. In this paper, an equivalent realization method for the cylindrical concentrator is proposed based on the transmission line (TL) network. The effectiveness of the method is validated through the Agilent's Advanced Design System (ADS) circuit simulator, and the performance of presented TL concentrator is compared with the ideal concentrator. Besides, the broadband characteristics and the robustness of TL concentrator against the material loss of circuit elements are also discussed. This work expands the application of TL theory and provides a feasible solution to push the concentrator much closer to the application. Keywords-electromagnetic concentrator; TL network; transformation optics

Equivalent Realization of Cylindrical Electromagnetic Concentrator Based On Transmission Line Network