@inproceedings{15a31c3be9de4260aa7cb303ddd2bcec,
title = "Reconfigurable microwave couplers with dynamic performance control",
abstract = "Two kinds of reconfigurable microwave couplers are presented in this paper. The first one is a 90-degree branch-line coupler with a wide range of tunable coupling ratios. Especially, when its coupling ratio is tuned to be 1, this coupler becomes a crossover. The second one possesses a reconfigurable performance between a rat-race coupler and a 90-degree coupler. Both of the devices have a symmetrical structure, and varactors are loaded to the couplers as the tuning elements. By applying suitable control voltages, the reconfigurable performance is realized. Closed-form equations are derived to theoretically analyze the proposed devices. To further verify the design theory, both structures are simulated. Moreover, the first coupler is fabricated and characterized. Good performance is achieved in both simulation and measurement results.",
keywords = "Reconfigurable device, branch-line coupler, crossover, ratrace coupler, symmetrical",
author = "Mi Zhou and Han Ren and Jin Shao and Bayaner Arigong and Jun Ding and Hualiang Zhang",
note = "Publisher Copyright: {\textcopyright} 2014 IEEE.; 2014 IEEE 57th International Midwest Symposium on Circuits and Systems, MWSCAS 2014 ; Conference date: 03-08-2014 Through 06-08-2014",
year = "2014",
month = sep,
day = "23",
doi = "10.1109/MWSCAS.2014.6908351",
language = "英语",
series = "Midwest Symposium on Circuits and Systems",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "57--60",
booktitle = "2014 IEEE 57th International Midwest Symposium on Circuits and Systems, MWSCAS 2014",
address = "美国",
}