@inproceedings{ee4758526e3645f98766a9d89fdce4f0,
title = "A Magnetically Coupled All-Pass Phase Shifter through Heterogeneous Integration",
abstract = "In this work, the concept of heterogeneous integration is adopted to implement an analog phase shifter based on magnetically coupled all-pass network topology. The magnetically coupled all-pass network is composed of coupled inductors and ferroelectric varactors. The coupled inductors are realized using a commercial GaAs-based integrated passive device process, whereas the ferroelectric varactors is fabricated using an in-house process on a sapphire carrier substrate. The implementation of the phase shifter is completed by mounting the GaAs chip on the sapphire carrier through flip-chip bonding. Measurement results show that the phase shifter exhibits a maximum phase shift of 161 degree at 2.35 GHz under 10-V bias. The successful implementation of the phase shifter demonstrates the potential of such heterogeneous integration for realizing tunable RF/microwave circuits.",
keywords = "all-pass network, ferroelectric thin film, heterogeneous integration, phase shifter",
author = "Wu, {Ke Fan} and Fu, {Jia Shiang}",
note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; null ; Conference date: 25-08-2021 Through 27-08-2021",
year = "2021",
month = aug,
day = "25",
doi = "10.1109/RFIT52905.2021.9565240",
language = "???core.languages.en_GB???",
series = "2021 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2021",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2021 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2021",
}