1. Wide bandwidth arbitrary phase difference branch line coupler. Issue 9 (September 2017) Authors: Qamar, Zeeshan; Chan, Wing Shing; Derek, Ho Journal: Microwave and optical technology letters Issue: Volume 59:Issue 9(2017:Sep.) Page Start: 2241 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗