The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In RFID-tags with pulse-based UWB communication, accurate supply-independent low-power oscillators are required. The 24 MHz oscillator presented was realized in a 130 nm CMOS technology. It has an ultra-low supply voltage dependency of 104 ppm/V over a voltage range of 1.4 V to 0.4 V. This was achieved by the use of two nested ultra-low-power voltage regulators and a novel circuit technique based...
This paper gives an overview of RFID technology. RFID systems are described in general and a few example cases are given. After that the paper mainly focuses on the hardware requirements for RFIDs. Also real time locationing systems (RTLS) are discussed. This gives the title of the paper a double meaning: `what is the state of the art in RFID' but also what is the available technology to come to locationing...
This paper gives an overview of RFID technology. RFID systems are described in general and a few example cases are given. After that the paper mainly focuses on the hardware requirements for RFIDs. Also real time locationing systems (RTLS) are discussed. This gives the title of the paper a double meaning: `what is the state of the art in RFID' but also what is the available technology to come to locationing...
In this work, a 10 Mb/s impulse UWB RFID tag in 0.18 mum CMOS is presented. The tag is remotely powered by a UHF signal with a minimum input RF power as low as 14.1 muW. The primary innovation is to employ two different communication links (UWB and UHF) respectively in the uplink and downlink of the tag. This is because the amount of data or instructions from a reader to a tag is small and as a result...
This paper presents a fully integrated pinless wireless power supply that scavenges RF energy from the air for RFID tag powering. The chip is composed of an integrated on-chip meandering antenna with rectifier in a 130 nm CMOS technology. The generated output voltage approximately reaches 1.55 V and 700 mV from a 31 dBm EIRP source at a distance of 40 cm and 60 cm respectively at a frequency of 1...
In this paper, three different types of frequently used antennas in passive RFID tags with different sizes are investigated for voltage scavenging application. Most critical is to create a minimum voltage at the antenna port. Therefore, using simulations with two software packages, CST and HFSS, a detailed explanation is presented of the induced voltage at the antenna port versus antenna length and...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.