X-Band CMOS Rectifier With 4&#x0025; Efficiency at &#x2212;35 dBm for Wireless Power Transmission

Troy Buhr; Aydin I. Karsilayan; Jose Silva-Martinez; Christopher Rodenbeck; Brian Tierney; Yanghyo Kim

doi:10.1109/ACCESS.2023.3237647

IEEE Access (Jan 2023)

X-Band CMOS Rectifier With 4% Efficiency at −35 dBm for Wireless Power Transmission

Troy Buhr,
Aydin I. Karsilayan,
Jose Silva-Martinez,
Christopher Rodenbeck,
Brian Tierney,
Yanghyo Kim

Affiliations

Troy Buhr: ORCiD; Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX, USA
Aydin I. Karsilayan: ORCiD; Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX, USA
Jose Silva-Martinez: ORCiD; Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX, USA
Christopher Rodenbeck: U.S. Naval Research Laboratory, Washington, DC, USA
Brian Tierney: ORCiD; U.S. Naval Research Laboratory, Washington, DC, USA
Yanghyo Kim: ORCiD; Department of Electrical and Computer Engineering, Stevens Institute of Technology, Hoboken, NJ, USA

DOI: https://doi.org/10.1109/ACCESS.2023.3237647
Journal volume & issue: Vol. 11
pp. 6792 – 6801

Abstract

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This paper proposes a radio frequency (RF) rectifier topology for low-power wireless power transmission (WPT) applications in the X band. The rectifier consists of a biased PMOS pair and is matched to the RF signal source impedance using a PCB transmission line (TL) matching network. It is demonstrated that a clever optimization of the bias voltage enables the rectifier to achieve greater sensitivity and efficiency than previous works at X band. The rectifier was designed in a 45 nm silicon-on-insulator (SOI) process and operates at a frequency of 9.64 GHz. It achieves a power conversion efficiency (PCE) of 4% and 46% at power levels of −35 dBm and −10 dBm, respectively.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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