@inproceedings{d71d26c86c7e40b9a3abf74a3a345dc5,
title = "Reconfigurable 1.5-2.5-GHz phase shifter with 360o relative phase-shift range and reduced insertion-loss variation",
abstract = "This paper proposes a varactor-based reflection-type phase shifter that allows for 360o relative phase-shift range and reduced insertion-loss variation over the entire frequency tuning range. In particular, a novel and compact reconfigurable 90o coupler is devised and it is, theoretically, able to achieve perfect return loss and isolation at each tuning state. Thus, when this 3-dB coupler is terminated with two reflective loads, the phase shifter can operate at a wide range of center frequencies. Moreover, a tunable transformation network is proposed to optimally reduce the insertion-loss variation within the 360o continuous phase-shift range for any operational frequency. Experimental results show that the fabricated phase shifter, in a frequency range of 1.5-2.5 GHz, can realize 360o relative phase-shift range with greater than 16.5 dB in return loss and less than 3.8 dB in insertion-loss variation.",
keywords = "Insertion-loss variation, Phase shifter, Reconfigurable, Reflection-type, Relative phase shift, Varactor",
author = "Pei-Ling Chi and Huang, {Chia Ling}",
year = "2017",
month = oct,
day = "4",
doi = "10.1109/MWSYM.2017.8058728",
language = "English",
series = "IEEE MTT-S International Microwave Symposium Digest",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "897--899",
booktitle = "2017 IEEE MTT-S International Microwave Symposium, IMS 2017",
address = "United States",
note = "null ; Conference date: 04-06-2017 Through 09-06-2017",
}