Nouri, S. ., J. . Nourinia, N. . Valizade, B. . Mohammadi, and A. . Valizade. “Novel Compact Branch-Line Coupler Using Non-Uniform Folded Transmission Line and Shunt Step Impedance Stub With Harmonics Suppressions”. Applied Computational Electromagnetics Society Journal (ACES), vol. 31, no. 04, Aug. 2021, pp. 401-9, https://journals.riverpublishers.com/index.php/ACES/article/view/10155.