Balanced\/Unbalanced Wideband: A Wideband, Bifilar Transmission-Line Balun

This article presents the design details of a wideband, bifilar transmission-line balun submitted for the student design competition for wideband baluns held during the 2015 IEEE Microwave Theory and Techniques Society (MTT-S) International Microwave Symposium (IMS 2015) in Phoenix, Arizona, and sponsored by the MTT-17 Technical Committee on HF-VHF-UHF Technology.