Near Field Communication (NFC) Technology, Vulnerabilities ...

The Near Field Communication (NFC) is a set of standards for mobile devices designed to establish radio communication with each other by being touched together or brought within a short distance. The NFC standard regulates a radio technology that allows two devices to communicate when they are in close proximity, usually no more than a few centimeters, allowing the secure exchange of...

Read more


Related topics : rfid card reader device / nfc rfid card reader / rfid proximity card reader kit / rfid proximity card reader / rfid reader mobile device

Near field communication - Wikipedia

Modified Miller, 100% ASK

Man, 10% ASK

NFC employs two different codings to transfer data. If an active device transfers data at 106 kbit/s, a modified Miller coding with 100% modulation is used. In all other cases Manchester coding is used with a modulation ratio of 10%.

NFC devices are full-duplex--they are able to receive and transmit data at the same time. Thus, they can check for potential...

Read more

Date: 2017-03-03 18:19:18

Related topics : nfc rfid card reader / tag rfid nfc / credit card rfid nfc / rfid based smart card security system / rfid credit card reader android app

A UHF/UWB hybrid silicon RFID tag with on–chip antennas ...

A UHF/UWB hybrid silicon RFID tag with on-chip antennas


Philipp K Gentner Email author

Robert Langwieser

RFID and near field communications in embedded systems


In this contribution, we describe and analyse a miniature wireless radio frequency identification (RFID) chip with on-chip antennas (OCA) and ultra wideband (UWB) signalling by real-world measurements. With the on-chip...

Read more


Related topics : low cost low power uhf rfid tag with on chip antenna / uhf rfid transponder chip and antenna impedance measurements / uhf rfid chip antenna / uhf reader loop antenna for near field rfid applications / uhf rfid reader antenna for near field and far field operations

iso 14443, Iso 18092, Type-a, Type-b, Type-f, - NFC

You are trying to start with NFC Development? You are familiarly with coding and have devices and Tags? But nothing is working? Well then, this might be due to the different RF-layers that are used in the Domains of proximity Technology.

Well, all of the terms mentioned above have something to do with contactless technology, which might be integrated into handsets for "Near Field Communication"....

Read more


Related topics : rf card reader module / rfid modulation types / mifare contactless card reader / difference between passive and active rfid tags technology / mifare rfid card reader

Phased array - Wikipedia

Types[ edit ]

A passive phased array or passive electronically scanned array (PESA) is a phased array in which the antenna elements are connected to a single transmitter and/or receiver , as shown in the animation at top. PESAs are the most common type of phased array.

An active phased array or active electronically scanned array (AESA) is a phased array in which each antenna element has its own...

Read more

Date: 2017-03-03 04:06:19

Related topics : tracking system using rfid / radio frequency identification rfid systems / radio frequency identification technology (rfid) / radio frequency identification technology rfid / radio frequency identification (rfid)