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Effective Parameters for Ferrite-Core RID Tag Antennas
2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS), 2018In this paper we obtain the effective geometrical parameters of a ferrite-core based antenna to model its equivalent electrical circuit for computing the self-inductance, power losses, including the hysteresis effects. The ferrite coil is the receiver antenna of a low frequency RFID tag (134.2 kHz).
Santana-Abril, J. +4 more
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Circular UHF RFID tag antenna and relationship between reading range and RCS of the tag antenna
2007 IEEE Antennas and Propagation Society International Symposium, 2007The different sizes of circular tag antennas have been designed. The different sizes of circular tags will be fit to any circular object such as bottle caps of cosmetics. The outer radius from 8 mm to 40 mm of tags have been fabricated and tested. The 12 mm circular tag has about 1 m reading distance, and 35 mm tag has about 5 m.
null Goojo Kim +2 more
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Tag-antenna-based presence sensing using near-field traveling-wave reader antenna
2014 International Conference on the Internet of Things (IOT), 2014We propose tag-antenna-based sensing (TABS) for detecting objects and people using a low-cost near-field traveling-wave reader antenna. This technology is inspired by TABS, which enables the use of ordinary far-field radio-frequency identification (RFID) tags as extremely low-cost proximity presence sensor nodes.
Hattori, Wataru +2 more
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Far-Field Tag Antenna Design Methodology
2008Antennas used in the HF region operate at 13.56 MHz whose frequency has an electromagnetic wavelength of around 22 m giving a near-field far-field boundary of around 3.5 m. Thus, given reading distance requirements of
Ranasinghe, D., Cole, P.
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Coplanar Antenna Array for 2.45GHz RFID Tag
2006 European Microwave Conference, 2006A new CPS Antenna design is presented. This antenna is suitable for RFID Tags, operating at 2.45GHz. The device was fabricated on RT6002 substrate of thickness h=1.5 mm. Input impedance control is based on the conformal mapping technique. A full wave EM simulator was used to obtain the frequency response.
F. L. E Silva, M. De Melo
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Circularly polarized compact passive RFID tag antenna
2008 International Conference on Electrical and Computer Engineering, 2008This paper presents a compact (35times36.5 mm) RFID tag antenna which has large RCS patterns and easy conjugate impedance matching property by use of an inductively-coupled feeding. Its simulated maximum (match state) and minimum (short state) RCS are -15.36 dBm2 and -22.0 dBm2, with a difference of 6.69 dB between the two states.
Hidayath Mirza +2 more
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Circularly polarized circular microstrip RFID tag antenna
2012 Asia Pacific Microwave Conference Proceedings, 2012A compact circularly polarized circular microstrip tag antenna designed for RFID UHF band is presented. A cross slot of unequal arm lengths embedded in a circular patch is used to achieve compact CP operation. By choosing the proper lengths of two short-circuited arc microstrip lines and its coupling distance, good complex impedance matching can be ...
Yen-Ming Tseng +3 more
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Compact wideband tag antenna for UHF RFID
Microwave and Optical Technology Letters, 2009AbstractA UHF radio frequency identification tag antenna using an inductively coupled feeding method and meander lines is proposed. The antenna has a compact size (diameter: 0.08λ, 26.4 mm), wide bandwidth, and simple matching technique between a tag antenna and a tag chip.
Lim, SH Lim, Sang-Ho +3 more
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A Miniaturized Differential-fed Tag Antenna
2022 IEEE 10th Asia-Pacific Conference on Antennas and Propagation (APCAP), 2022ShengTeng Shi +3 more
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Stacked Planar Inverted-L Antenna With Enhanced Capacitance for Compact Tag Design
IEEE Transactions on Antennas and Propagation, 2022Shin Yi Ooi, Pei Song Chee, Eng Hock Lim
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