@inproceedings{728c714854d240d8bd9f82e470d6108c,
title = "A C-Band Commutated-LC-Negative-R Delay Circuit with Harmonic Power Recycling Achieving 1.5-ns Delay, 1.4-GHz BW, and 6-dB IL",
abstract = "This work presents a commutated-LC-negative-R delay circuit for broadband signal processing at RF. It introduces negative resistance to compensate inductor loss in a commutated-LC broadband delay circuit, and unveils a new capability of time-varying RF circuits that we call harmonic power recycling. For a time-invariant circuit or an N-path filter circuit, its desired passband consists of only one harmonic. Hence, energies at all other harmonics provided by the broadband negative resistance are wasted. In contrast, a commutated-LC broadband delay circuit has multiple harmonics across its passband, recycling the wasted RF energies from the negative resistance. This harmonic power recycling results in improved noise figure and low dc power in addition to reduced insertion loss (IL). A proof-of-concept CMOS delay line is implemented, achieving 1.5-ns delay, 1.4-GHz instantaneous bandwidth (BW), and 6-dB IL at the C band.",
keywords = "Cmos, N-path filter, delay, harmonic, linear periodically time varying, low noise, radio frequency",
author = "Shuxin Ming and Rakibul Islam and Jin Zhou",
note = "ACKNOWLEDGMENT This work was supported by the National Science Foundation CAREER Program under Grant ECCS-2046104.; 2022 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2022 ; Conference date: 19-06-2022 Through 21-06-2022",
year = "2022",
doi = "10.1109/RFIC54546.2022.9863138",
language = "English (US)",
series = "Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "271--274",
booktitle = "2022 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2022",
address = "United States",
}