1. Weakly coupled directional coupler with simultaneous wide bandwidth and high directivity. Issue 5 (28th January 2019) Authors: Hammad Akhtar, M.; Ayaz Zakir, M.; Cheema, Hammad M. Journal: Microwave and optical technology letters Issue: Volume 61:Issue 5(2019:May) Page Start: 1259 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗