Results 31 to 40 of about 39,888 (254)

Efficiency Bound Estimation for a Practical Microwave and mmWave Wireless Power Transfer System Design [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2023
In this study, we present an efficient method to find the power transfer efficiency (PTE) bound for practical microwave and mmWave wireless power transfer (MPT) systems composed of transmitter (Tx) and receiver (Rx) array antennas.
Ho Yeol Kim, Youngseok Lee, Sangwook Nam
doaj   +1 more source

14.6-GHz LiNbO/sub 3/ microdisk photonic self-homodyne RF receiver [PDF]

open access: yes, 2006
Nonlinear optical modulation combined with simultaneous photonic and RF resonance in an LiNbO/sub 3/ microdisk modulator is used to create a self-homodyne photonic RF receiver.
Hossein-Zadeh, Mani, Levi, Anthony F. J.
core   +1 more source

RF Systems Design for Simultaneous Wireless Information and Power Transfer (SWIPT) in Automation and Transportation

open access: yesIEEE Journal of Microwaves, 2021
This work presents some recent solutions that exploit the wireless power transfer (WPT) technology for energizing moving vehicles and machinery tools.
DIEGO MASOTTI   +4 more
doaj   +1 more source

Wearable flexible lightweight modular RFID tag with integrated energy harvester [PDF]

open access: yes, 2016
A novel wearable radio frequency identification (RFID) tag with sensing, processing, and decision-taking capability is presented for operation in the 2.45-GHz RFID superhigh frequency (SHF) band.
Agneessens, Sam   +5 more
core   +2 more sources

Metaheuristic-Based Optimization and Prototype Investigation of Low Frequency Metamaterial for Wireless Power Transfer Application

open access: yesIEEE Access, 2023
The adoption of wireless charging technologies for consumer and industrial applications is inhibited by concerns over reliability culminating from the fluctuating output power, low transmit power, and power transfer efficiency (PTE) of these systems ...
Webster Adepoju   +6 more
doaj   +1 more source

A 24-GHz SiGe Phased-Array Receiver—LO Phase-Shifting Approach [PDF]

open access: yes, 2005
A local-oscillator phase-shifting approach is introduced to implement a fully integrated 24-GHz phased-array receiver using an SiGe technology. Sixteen phases of the local oscillator are generated in one oscillator core, resulting in a raw beam-forming ...
Guan, Xiang   +3 more
core   +1 more source

On-Site Wireless Power Generation

open access: yes, 2018
Conventional wireless power transfer systems consist of a microwave power generator and a microwave power receiver separated by some distance. To realize efficient power transfer, the system is typically brought to resonance, and the coupled-antenna mode
Alu, A.   +6 more
core   +1 more source

Theory Based on Device Current Clipping to Explain and Predict Performance Including Distortion of Power Amplifiers for Wireless Communication Systems [PDF]

open access: yes, 2008
Power amplifiers are critical components in wireless communication systems that need to have high efficiency, in order to conserve battery life and minimise heat generation, and at the same time low distortion, in order to prevent increase of bit ...
Tian, Yunjia, Tian, Yunjia
core   +1 more source

Wireless Power Transfer to a Microaerial Vehicle with a Microwave Active Phased Array

open access: yesInternational Journal of Antennas and Propagation, 2014
A wireless power transfer system using a microwave active phased array was developed. In the system, power is transferred to a circling microaerial vehicle (MAV) by a microwave beam of 5.8 GHz, which is formed and directed to the MAV using an active ...
Shotaro Nako   +4 more
doaj   +1 more source

Recent Advances in Joint Wireless Energy and Information Transfer

open access: yes, 2014
In this paper, we provide an overview of the recent advances in microwave-enabled wireless energy transfer (WET) technologies and their applications in wireless communications. Specifically, we divide our discussions into three parts. First, we introduce
Bi, Suzhi, Ho, Chin Keong, Zhang, Rui
core   +1 more source

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