Jongseok Bae
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View article: 2.4 GHz GaN HEMT Class-F Synchronous Rectifier Using an Independent Second Harmonic Tuning Circuit
2.4 GHz GaN HEMT Class-F Synchronous Rectifier Using an Independent Second Harmonic Tuning Circuit Open
This paper proposes a class-F synchronous rectifier using an independent second harmonic tuning circuit for the power receiver of 2.4 GHz wireless power transmission systems. The synchronous rectifier can be designed by inverting the RF ou…
View article: Extendable Array Rectenna for a Microwave Wireless Power Transfer System
Extendable Array Rectenna for a Microwave Wireless Power Transfer System Open
In this study, a rectenna is adopted in a microwave-based wireless power transfer system to rectify the received radio frequency (RF) to DC power. Each rectenna comprises a DC-DC converter at the DC output port to ensure a stable power sup…
View article: 5.8 GHz 4-Channel Beamforming Tx IC for Microwave Power Transfer
5.8 GHz 4-Channel Beamforming Tx IC for Microwave Power Transfer Open
The microwave power transfer (MPT) system requires a massive Tx array for building a focused radio wave to efficiently transfer power to the Rx. Beamforming IC is one of the core elements for the massive Tx array. This paper presents a 5.8…
View article: Correction to “5.8 GHz 4-Channel Beamforming Tx IC for Microwave Power Transfer”
Correction to “5.8 GHz 4-Channel Beamforming Tx IC for Microwave Power Transfer” Open
In the above article [1], the received power in dc referred from the reference [2], which is the reference [35] in the original article [1], was incorrectly introduced. It was written as 0.2 W (dc) in the introduction of [1], but the corre…
View article: Analysis of Received Power in RF Wireless Power Transfer System With Array Antennas
Analysis of Received Power in RF Wireless Power Transfer System With Array Antennas Open
In this paper, a method for calculating the received power in a radio-frequency wireless power transfer system with array antennas is proposed. The received power is derived based on the superposition of the electric fields that radiate fr…
View article: A High-Efficiency and Wide-Input Range RF Energy Harvester Using Multiple Rectenna and Adaptive Matching
A High-Efficiency and Wide-Input Range RF Energy Harvester Using Multiple Rectenna and Adaptive Matching Open
In this paper, a Radio Frequency (RF) energy harvester (EH) system for Internet of Things (IoT)-related applications is presented. The proposed EH architecture operates at 5.2 GHz band and utilizes multiple rectenna. This approach enhances…
View article: LUT-Based Focal Beamforming System Using 2-D Adaptive Sequential Searching Algorithm for Microwave Power Transfer
LUT-Based Focal Beamforming System Using 2-D Adaptive Sequential Searching Algorithm for Microwave Power Transfer Open
This paper presents a look-up table (LUT)-based focal beamforming system that can effectively transmit RF power up to mid-range distances (≤ 3 m) including when the Rx is in the near-field zones. The Tx elements control and radiate signals…
View article: 5.8 GHz High-Efficiency RF–DC Converter Based on Common-Ground Multiple-Stack Structure
5.8 GHz High-Efficiency RF–DC Converter Based on Common-Ground Multiple-Stack Structure Open
This paper presents a 5.8 GHz RF–DC converter for high conversion efficiency and high output voltage based on a common-ground and multiple–stack structure. An RF isolation network (RFIN) for the multiple-stack RF–DC converter is proposed t…
View article: High-Efficiency Stacked Power Amplifier IC With 23% Fractional Bandwidth for Average Power Tracking Application
High-Efficiency Stacked Power Amplifier IC With 23% Fractional Bandwidth for Average Power Tracking Application Open
This paper presents a two-stage stacked power amplifier integrated circuit (PAIC) for broadband and high efficiency using a 2-μm InGap/GaAs HBT process with a second-harmonic control circuit and a bias-switching circuit for an average powe…