Nguyen , C. N., V. T. B. Nguyen, H. N. Duong, and V. Ánh Dinh. “Design and Simulation of Ultra-Wideband (uwb) System and Proposed a Solution to Uwb Connection in the Three- Imensional Integrated Circuits”. Journal of Technical Education Science, vol. 7, no. 1, Mar. 2012, pp. 41-50, https://www.jte.edu.vn/index.php/jte/article/view/717.