Kong W, Wang J, Deng S, Wang Q, Ma L, Zhou B, Song X, Zhang K, Yang G, Li Y, Wang C. A 3 dB Coupler With Defected Ground Structure for Feeds Applied to High-Power Intelligent Metasurface. ACES Journal [Internet]. 2026 Feb. 20 [cited 2026 May 7];41(02):155–161. Available from: https://journals.riverpublishers.com/index.php/ACES/article/view/29729