Abdulrahman Alaqeel, Sultan Almorqi, Osama M. Haraz, Saleh A. Alshebeili, Abdel-Razik Sebak. Design of Multilayered K-Band and Ka-Band Slot-Coupled Microstrip 90° Hybrid Couplers Employing Circular Ring Patch Shapes. Wireless Personal Communications, 92(2):653-666, 2017. [doi]
Abstract is missing.