An EPC Gen 2 compatible passive/semi-active UHF RFID transponder with embedded FeRAM and temperature sensor

Kim, Shiho; Cho, Jung-Hyun; Kim, Hyun-Sik; Kim, Hak‐Soo; Kang, Hee-Bok; Hong, Suk‐Kyung

doi:10.1109/asscc.2007.4425750

Cited by 20 publications

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With the great progress in CMOS technology, 2.45G tag becomes more suitable for future applications. And consequently, many studies have been conducted in recent years, such as an EPC Gen 2 compatible passive/semi-active UHF RFID transponder with embedded FeRAM and temperature sensor [3] and a semi-active UHF tag using wake-up mechanism for power manager [4]. Rechargeable pattern combined semi-active mode control are unusual, but unfortunately, such systems have not cut off some circuit blocks working only on active mode when the tag operate in passive mode, thus having large power consumption.…”

Section: Introductionmentioning

confidence: 99%

A Fully Integrated 2.45G Semi-Active RFID Tag IC

Zhang

Mao

et al. 2012

AMM

View full text Add to dashboard Cite

In recent years, radio frequency identification (RFID) microwave technology receives great attention because of its advantages, e.g. long identification distance, small size of antenna, high identification speed and strong anti-collision ability. RFID tag plays one of the most important roles in logistics, and therefore special attention should be paid to tag design. In this paper, we present a 2.45G semi-active tag design, which is compatible with ISO 18000-4. The proposed tag can switch the manners of working between active and passive. When the generated RF-power is sufficient to operate, the tag works as a passive tag, and low noise amplifier (LNA), oscillator (OSC) and power amplifier (PA) are cut off to save the whole chip power consumption mostly. Otherwise it operates in active mode using battery power, and the working distance is greatly increased as a result of using PA.

show abstract

Section: Introductionmentioning

confidence: 99%

A Fully Integrated 2.45G Semi-Active RFID Tag IC

Zhang

Mao

et al. 2012

AMM

View full text Add to dashboard Cite

show abstract

“…There has been great interest in UHF RFID tag research. Much effort has been made to reduce costs [1] , enlarge the reading range [2] and integrate the tag with other functions (e.g., a temperature sensor) [3] .…”

Section: Introductionmentioning

confidence: 99%

Low modulation index RF signal detection for a passive UHF RFID transponder

Liu

Zhang

et al. 2009

J. Semicond.

View full text Add to dashboard Cite

In a typical RFID system the reader transmits modulated RF power to provide both data and energy for the passive transponder. Low modulation index RF energy is preferable for an adequate tag power supply and increase in communication range but gives rise to difficulties for near-field conventional demodulation. Therefore, a novel ASK demodulator for minimum 20% modulation index RF signal detection over a range of 23 dB is presented. Thanks to the proposed innovative divisional linear conversion from the power into voltage signal, the detection sensitivity is ensured over a wide power range with low power consumption of 8.6 μW. The chip is implemented in UMC 0.18 μm mix-mode CMOS technology, and the chip area is 0.06 mm2.

show abstract

“…Generally it is used for enlarging the IZ, what is a very desirable feature for most implementation of RFID systems. Moreover, in some chips, the additional energy is used for powering blocks of supplementary autonomous functions, such as measuring physical quantities (humidity [14], [15], temperature [15][16][17], light intensity [15], [16], pressure [18], acceleration [19], gas [17], [20], etc. ), writing gathered data into a built-in memory, etc.…”

Section: Semi-passive Uhf Transpondermentioning

confidence: 99%