Zhigang Zhang, Yong Fan, Yujian Cheng, Yonghong Zhang. Compact Multilayer Substrate Integrated Waveguide Dual-band Filtering Rat-race Coupler Based on Fan-shaped Cavities. ACES Journal [Internet]. 2020 Mar. 1 [cited 2026 Apr. 29];35(3):344-53. Available from: https://journals.riverpublishers.com/index.php/ACES/article/view/7945