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R. Sinha and A. De,"Theory on matching network in viewpoint of transmission phase shift", IEEE Transactions on Microwave Theory and Techniques, vol.64, no.6, pp.1704-1716, IEEE 2016, 10.1109/tmtt.2016.2558645       Article

R. Sinha, A. De, and S. Sanyal,"A Theorem on Asymmetric Structure Based Rat-race Coupler", IEEE Microwave and Wireless Components Letters, vol.25, no.3, pp.145-147, IEEE 2015, 10.1109/lmwc.2014.2382661       Article