Technologies related to mobile device prevention of contact less card attacks are generally
described. In some examples, a mobile computing device may monitor for electromagnetic …

Electronic devices may be provided that contain wireless communications circuitry. The
wireless communications circuitry may include radio-frequency transceiver circuitry and …

BACKGROUND This relates to electronic devices, and more particularly, to antennas for
electronic devices with wireless communi cations circuitry. Electronic devices Such as …

An electronic device may be provided with antenna structures. The antenna structures may
be coupled to non-near-field communications circuitry such as cellular telephone transceiver …

An electronic device may be provided with shared antenna structures that can be used to
form both a near-field-commu nications antenna such as a loop antenna and a non-near …

(74) Attorney, Agent, or Firm—Chang & Hale LLP ABSTRACT Architectures and methods
related to improved isolation for diplexer paths. In some embodiments, an architecture for …

A near-field communication (NFC) device may include: an NFC circuitry configured to
perform NFC; an antenna structure connected to the NFC circuitry; and/or a matching circuit …

A circuit includes an antenna, and a pair of transceivers. A first transceiver in the pair is
connected to the antenna via a first pair of feed-points, and is designed to transmit and …

An electronic device may be provided with shared antenna structures that can be used to
form both a near-field-communications antenna such as a loop antenna and a non-near …

ABSTRACT A method for performing near-field communication (NFC) type operations in the
far-field region using a repurposed antenna is described. The method includes determining …