A Power-Efficient 308-to-331-GHz 4 2 Radiator Array Achieving 13.6-dBm Chip-Only EIRP in 65-nm CMOS

doi:10.1109/TMTT.2025.3642283

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	A Power-Efficient 308-to-331-GHz 4 2 Radiator Array Achieving 13.6-dBm Chip-Only EIRP in 65-nm CMOS
	Wu, Huibo 1; Liu, Xuan 1; Li, Xingcun 1; Liu, Yuqun 2; Li, Shuyang 1; Zhang, Yuhang 1; Gao, Liang 3; Li, Yue 1; Chen, Wenhua 1
	2025-12-18
发表期刊	IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
ISSN	0018-9480
页码	14
摘要	In this article, a coherent power-efficient terahertz (THz) radiator array with eight coupled oscillator elements is presented. First, an efficiency-enhanced resonant tank based on the low-k transformer is proposed, which can drive fundamental oscillation into the deep triode region while effectively reducing harmonic leakage between the gate and the drain. Depending on this resonant tank, a 2nd-harmonic oscillator is designed to generate high output power. In addition, a broadband dual-mode on-chip patch antenna array with U-shaped slots is proposed and optimized for chip-only high effective isotropic radiated power (EIRP). The harmonic oscillators finally use a ring-scalable coupling network to realize a 2-D array configuration for spatial power combining. The chip is fabricated by the TSMC 65-nm CMOS process, and the core area of the chip is 1.8 x 0.82 mm. The measured tuning range of the proposed radiator array is 7.2% from 308.2 to 331.4 GHz. The maximum chip-only EIRP achieves 13.6 dBm with a peak radiated power (P-rad) of 1 dBm. The peak dc-to-RF efficiency achieves 0.493%.
关键词	Harmonic extraction Harmonic extraction on-chip antenna radiator array radiator array radiator array radiator array 65-nm CMOS 65-nm CMOS terahertz (THz) terahertz (THz) terahertz (THz)
DOI	10.1109/TMTT.2025.3642283
收录类别	SCI
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Electrical & Electronic
WOS记录号	WOS:001643513300001
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/42956
专题	中国科学院计算技术研究所
通讯作者	Chen, Wenhua
作者单位	1.Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Inst Comp Technol, Beijing 100190, Peoples R China 3.Southeast Univ, Sch Informat Sci & Engn, State Key Lab Millimeter Waves, Nanjing 210096, Peoples R China
推荐引用方式 GB/T 7714	Wu, Huibo,Liu, Xuan,Li, Xingcun,et al. A Power-Efficient 308-to-331-GHz 4 2 Radiator Array Achieving 13.6-dBm Chip-Only EIRP in 65-nm CMOS[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES,2025:14.
APA	Wu, Huibo.,Liu, Xuan.,Li, Xingcun.,Liu, Yuqun.,Li, Shuyang.,...&Chen, Wenhua.(2025).A Power-Efficient 308-to-331-GHz 4 2 Radiator Array Achieving 13.6-dBm Chip-Only EIRP in 65-nm CMOS.IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES,14.
MLA	Wu, Huibo,et al."A Power-Efficient 308-to-331-GHz 4 2 Radiator Array Achieving 13.6-dBm Chip-Only EIRP in 65-nm CMOS".IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES (2025):14.