@inproceedings{537b2bbbb8484e2986405662d0987d76,
title = "Design of An Ultra-Compact Bidirectional Amplifier in 55-nm CMOS",
abstract = "This paper proposes a novel compact bidirectional amplifier topology utilizing transformers stacking technology. This solution employs magnetic self-canceling technique to fully stack the low-noise amplifier (LNA) within the power amplifier (PA), resolving performance and area trade-offs inherent in traditional bidirectional amplifier architecture. To validate this approach, we implemented a bidirectional amplifier with switchable LNA/PA operating modes for K/Ka-band satcom systems using 55-nm CMOS technology. The proposed bidirectional amplifier achieves a peak saturated power (Psat) of 11.9 dBm and output power of 1 dB (OP1dB) of 10.4 dBm in the PA mode while maintaining a minimum noise figure (NF) of 4.3 dB in the LNA mode. The core size of this proposed design is only 0.14 mm2, which is only 20\%-50\% of the size occupied in conventional works.",
keywords = "bidirectional amplifier, low-noise amplifier, millimeter wave(mm-wave), power amplifier, transformer-based transmit/receive switch(TRSW)",
author = "Yuxuan Wang and Lei Zhang and Fangxuan Liu",
note = "Publisher Copyright: {\textcopyright} 2026 IEEE.; 6th International Conference on Neural Networks, Information and Communication Engineering, NNICE 2026 ; Conference date: 23-01-2026 Through 25-01-2026",
year = "2026",
doi = "10.1109/NNICE68970.2026.11466244",
language = "English",
series = "2026 6th International Conference on Neural Networks, Information and Communication Engineering, NNICE 2026",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1429--1432",
booktitle = "2026 6th International Conference on Neural Networks, Information and Communication Engineering, NNICE 2026",
address = "United States",
}