Results 91 to 100 of about 137 (111)
Diplexer-Based Fully Passive Harmonic Transponder for Sub-6-GHz 5G-Compatible IoT Applications
IEEE Transactions on Microwave Theory and Techniques, 2019 A novel diplexer-based fully passive transponder is presented in this paper, which targets sub-6-GHz 5G-compatible internet-of-things applications. To alleviate the antenna design restrictions of traditional transponder with two separate antennas, a new architecture has been proposed with the introduction of a diplexer, which allows transponder to ...
Xiaoqiang Gu, Lei Guo, Simon Hemour
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Analysis and Exploitation of Diplexer-based Fully Passive Harmonic Transponder for 5G Applications
2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies (IMWS-5G), 2018 An analytical model for the conversion loss (CL) calculation of diode-based fully passive harmonic transponders is proposed in this work. Given diode’s SPICE parameters, the proposed model can accurately predict second-harmonic output based on RF input power. Thus, CL can be easily obtained.
Xiaoqiang Gu, Simon Hemour
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Improving Conversion Loss Performance of Fully Passive Harmonic Transponder at Low Temperature
2019 IEEE Wireless Power Transfer Conference (WPTC), 2019 Conversion loss performance of fully passive harmonic transponders, which is drastically affected by low power mixing operation, determines their detection ranges directly. This work presents both theoretical and experimental studies of thermal effects on the performance of fully passive harmonic transponders.
Xiaoqiang Gu, Simon Hemour
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A Novel Passive RFID Transponder Using Harmonic Generation of Nonlinear Transmission Lines
IEEE Transactions on Microwave Theory and Techniques, 2010 We present a novel RF identification transponder based on nonlinear transmission lines (NLTLs). The NLTLs provide an effective solution to self-jamming with the harmonic generation property, and they are passive, compact, and offer easy impedance. Three NLTLs are fabricated with a different Bragg cutoff frequency fT in an IBM 8RF 0.13-μ m CMOS process.
Fan Yu, Edwin C Kan
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Frequency hopped wireless passive sensing system with harmonic transponder antenna sensor
2015 IEEE MTT-S International Microwave Symposium, 2015 This paper presents a passive wireless sensing paradigm based on the harmonic transponder comprising an antenna covered with a metamaterial-inspired helical structure, which is sensitive to the liquid-level within. An interrogator transmits frequency hopped UHF RFID signals to the transponder, and a sniffer detects the harmonic signal from the ...
Haiyu Huang +2 more
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Design of a Compact Harmonic Transponder Based on Quarter-Wavelength Impedance Transformers
, 2022 In this paper, the optimised design of a fully passive harmonic transponder is presented. The proposed harmonic transponder is based on the use of quarter-wavelength impedance transformers.
Jinyao Zhang +2 more
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IEEE Sensors Journal, 2020 We propose here a fully-passive wireless liquid sensor using a harmonic transponder, which comprises a dual-band microstrip antenna reconfigured by different types of liquids injected in a fluidic cavity.
Liang Zhu +2 more
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Wireless Passive Temperature Sensor based on a Harmonic Transponder and a Thermistor
2023 IEEE 13th International Conference on RFID Technology and Applications (RFID-TA), 2023This paper presents a novel wireless zero-power temperature sensor. Through the combination of harmonic radio frequency identification (RFID) technology and the concept of amplitude modulation, it was possible to create a transponder, which can therefore also be used for sensing applications. The prototype was obtained by combining a Schottky-diode for
Balocchi L. +5 more
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Low-Profile Harmonic Transponder for IoT Applications
Electronics (Switzerland), 2021, Aman Batra, Abdelfattah Fawky
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