@inproceedings{62c9064c894244ad8da752cb520cc02d,
title = "Miniature broadband branch-line coupler in silicon-based integrated passive device technology",
abstract = "In this work, a miniature broadband branch-line coupler is proposed. By implementing the quarter-wavelength lines in a three-stage branch-line coupler using bridged T-coils, the circuit size can be largely reduced with no reduction in bandwidth. Specifically, a proposed broadband branch-line coupler with a center frequency f0 = 2.2 GHz is implemented using a silicon-based IPD process. The circuit size is 6.07 mmx2.89 mm, which is only about 0.045λ0×0.021 λ0 at f0. The measured bandwidth for 1-dB amplitude imbalance and 10-degree phase imbalance is from 1.65 to 2.87 GHz, which corresponds to a 54% bandwidth. To our knowledge, this is the smallest branch-line coupler with a larger than 50% bandwidth ever reported.",
author = "Liu, {Xuan Hong} and Lin, {Yo Shen}",
note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; Asia-Pacific Microwave Conference, APMC 2015 ; Conference date: 06-12-2015 Through 09-12-2015",
year = "2016",
month = feb,
day = "18",
doi = "10.1109/APMC.2015.7413128",
language = "???core.languages.en_GB???",
series = "Asia-Pacific Microwave Conference Proceedings, APMC",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
editor = "Fan Meng and Wei Hong and Xiao-Wei Zhu and Guang-Qi Yang and Zhe Song",
booktitle = "2015 Asia-Pacific Microwave Conference, APMC 2015 - Proceedings",
}