Abstract: One example discloses a wireless network device, wherein the wireless device is a second wireless device configured to receive a set of original signal transmissions from a first wireless device; wherein the set of original signal transmissions includes a signal for the second wireless device and a signal for a third wireless device; wherein the second wireless device is configured to detect a timing interval between individual signal transmissions within the set of original signal transmissions; wherein the second wireless device is configured to re-transmit the signal for the third wireless device substantially in-phase with the timing interval.

Abstract: One example discloses a noninvasive biological conditioning device, including: a first induction structure; a second induction structure; a barrier configured to block direct contact between the structures and a material; wherein the structures are configured to induce an electrical current in the material; and wherein the electrical current is configured to have a set of attributes for conditioning biological activity in the material.

Abstract: One example discloses an antenna tuning device, including: a controller configured to be coupled to a transceiver having an antenna tuner; wherein the transceiver is coupled to an antenna; wherein the controller is configured to receive a measured current signal from the transceiver corresponding to a current sent to or received by the antenna; and wherein the controller is configured to change an impedance of the antenna tuner in response to the measured current signal.

Abstract: One example discloses a near-field device, configured to receive a non-propagating quasi-static near-field signal from a near-field antenna, including: a tuning circuit including a first impedance tuning bank and a second impedance tuning bank; a controller configured to, detect when the device is in an idle-state; set the first impedance tuning bank and the second impedance tuning bank to an initial set of values; bring the near-field antenna and the near-field device combination to a frequency within a near-field signal bandwidth by adjusting the first and/or second impedance tuning banks; measure a first received signal strength; and differentially adjust the first and second impedance tuning banks until a measured second received signal strength is less than the first received signal strength.

Abstract: One example discloses a combination wireless charging and communications device, including: a series reactance; wherein the series reactance is configured to be coupled in series between an antenna and a charging circuit; wherein the series reactance is configured to conduct a charging current between the antenna and the charging circuit; a parallel reactance; wherein the parallel reactance is configured to be coupled in parallel with the antenna and a communications circuit; and wherein the parallel reactance is configured to conduct a communications voltage between the antenna and the communications circuit.

Abstract: The disclosure relates to an antenna including a substrate and a conductor pattern on the substrate. The conductor pattern comprises first and second conductor areas and the first conductor area is generally at a first end of the substrate and the second conductor area is generally at an opposing second end of the substrate. A first direction extends between the first and second ends of the substrate. The first conductor area has two arms, the two first conductor area arms extend parallel to the first direction and define a first slot between them; wherein the second conductor area has two arms with a second slot defined between them, and the two second conductor area arms extend parallel to the first direction. The two second conductor area arms sit within the first slot with a portion of the first slot at the outer sides of the two second conductor area arms.

Abstract: A wireless vehicle communication system (500, 600) includes a vehicle (200) having a plurality of wireless communication units (220, 240, 260) located in or attached to the vehicle (200). The plurality of wireless communication units is configured to operate in a first communication mode of operation that wirelessly transfers data to a communication unit located in a vicinity of the vehicle (200). The plurality of wireless communication units (220, 240, 260) is additionally configured to operate in a second communication mode of operation that wirelessly transfers data to at least one other of the plurality of communication units (220, 240, 260) located In or attached to the vehicle (200).

Abstract: Example antenna configured to be coupled to a first conductive structure having a first portion and a second portion, the antenna including: a second conductive structure having a first portion and a second portion; wherein the first portion of the second conductive structure is configured to be coupled to the first portion of the first conductive structure; a first feed point configured to be coupled to the second portion of the first conductive structure; wherein the first portion of the first conductive structure is configured to carry the RF signal current with a first current density; wherein the first portion of the second conductive structure is configured to carry the RF signal current with a second current density; wherein the first and second current densities are different.

Abstract: One example discloses a near-field device, comprising: a near-field receiver coupled to a near-field receiver antenna and a decoder circuit; wherein the near-field receiver antenna is configured to be capacitively coupled at a first location of a first substance; wherein the near-field receiver antenna is configured to receive a first near-field signal from the first substance through the receiver's capacitive coupling; and wherein the decoder circuit is configured to compare an attribute of the first near-field signal to an attribute of a second near-field signal received from a second substance.

Abstract: A near-field device, including: a near-field receiver coupled to a near-field receiver antenna and a decoder circuit; wherein the near-field receiver antenna is configured to be capacitively coupled at a first location on a conductive structure; wherein the near-field receiver antenna is configured to receive a near-field signal from the conductive structure through the receiver's capacitive coupling; and wherein the decoder circuit is configured to detect variations in the near-field signal.

Abstract: One example discloses a vibration sensor, comprising: an RF receiver circuit configured to receive an RF input signal; an RF signal characterization circuit configured to measure an attribute of the RF input signal over a set time-period; wherein the attribute of the RF input signal varies based on a physical motion between the vibration sensor and an RF source transmitting the RF input signal; and a vibration profiling circuit configured to map the attribute of the RF input signal to a vibration level.

Abstract: An antenna for transmitting a first frequency and a second frequency signals is enclosed. The antenna includes a first metallic section having a first end and a second end, a second metallic section located on a side of the first metallic section and having a first end and a second end. The second metallic section is separated from the first metallic section by a first non-conducting gap. The antenna further includes a third metallic section located on a side of the second metallic section and having a first end and a second end. The third metallic section is separated from the second metallic section by a second non-conducting gap. The first end of the first metallic section is connected to a first electronic circuit, the first end of the third metallic section is connected to a second electronic circuit, and the first end of the second metallic section is connected to a feeding port. The second end of the first metallic section is electrically attached to a first metallic plate.

Abstract: Antenna, including: a first conductive structure having a first end coupled to a conductive strip and a second end; wherein the conductive strip is coupled to a first feed point; a second conductive structure having a first portion and a second portion; wherein the second portion is coupled to a second feed point; wherein the second end of the first conductive structure is separated from the first portion of the second conductive structure by a gap; wherein the first conductive structure is substantially in parallel with and has a different width than the first portion of the second conductive structure; wherein the first conductive structure is configured to carry current in a first polarity and the first portion of the second conductive structure is configured to carry current in a second polarity opposite to the first polarity; and wherein the feed points are configured to carry an RF signal.

Abstract: Antenna, including: a first conductive structure having a first end coupled to a conductive strip and a second end; wherein the conductive strip is coupled to a first feed point; a second conductive structure having a first portion and a second portion; wherein the second portion is coupled to a second feed point; wherein the second end of the first conductive structure is separated from the first portion of the second conductive structure by a gap; wherein the first conductive structure is substantially in parallel with and has a different width than the first portion of the second conductive structure; wherein the first conductive structure is configured to carry current in a first polarity and the first portion of the second conductive structure is configured to carry current in a second polarity opposite to the first polarity; and wherein the feed points are configured to carry an RF signal.

Abstract: One example discloses a near-field electromagnetic induction (NFEMI) antenna, having: a core; an electric antenna including an electrically conductive surface; a magnetic antenna including a first coil coupled to a second coil; a first feeding connection coupled to one end of the first coil; a second feeding connection coupled to another end of the first coil and coupled to one end of the second coil; wherein the first and second feeding connections are configured to be coupled to an electrical apparatus; wherein another end of the second coil is coupled to the electrically conductive surface; a magnetic permeable material between a first side of the magnetic antenna and the core; and wherein the first coil, the second coil, the magnetic permeable material, and the electrically conductive surface are wrapped around the core.

Abstract: The disclosure relates to an antenna including a substrate and a conductor pattern on the substrate. The conductor pattern comprises first and second conductor areas and the first conductor area is generally at a first end of the substrate and the second conductor area is generally at an opposing second end of the substrate. A first direction extends between the first and second ends of the substrate. The first conductor area has two arms, the two first conductor area arms extend parallel to the first direction and define a first slot between them; wherein the second conductor area has two arms with a second slot defined between them, and the two second conductor area arms extend parallel to the first direction. The two second conductor area arms sit within the first slot with a portion of the first slot at the outer sides of the two second conductor area arms.

Abstract: Example of a near-field electromagnetic induction (NFEMI) device, including: an NFEMI antenna, having a first conductive plate, a coil, a first signal feed connection, and a second signal feed connection; wherein the coil is configured to generate or respond to a magnetic field and is coupled to the first and second signal feed connections; wherein the first conductive plate is coupled to the first signal feed connection; and an electrical apparatus, having a ground plane, a first capacitor and a second capacitor; wherein the electrical apparatus is coupled to the first and second signal feed connections; wherein the first capacitor is coupled between the first signal feed connection and the ground plane; wherein the second capacitor is coupled between the second signal feed connection and the ground plane; and wherein the first conductive plate in combination with the ground plane is configured to generate or respond to an electrical field.

Abstract: Embodiments of a wireless communication unit and operation of such unit in a test mode are provided, where a wireless communication unit includes: transmit and receive path circuitry coupled to an antenna via a switch; which is operated to: close the switch to connect the transmit path circuitry to the antenna, wherein the receive path circuitry remains unconnected, activate the transmit path circuitry to transmit an RF test signal on the antenna, wherein the RF test signal couples across the switch as a leakage signal, activate the receive path circuitry concurrently as the RF test signal is transmitted, wherein the receive path circuitry provides the leakage signal to an RF to DC converter via a directional coupler, and wherein the RF to DC converter is configured to generate an error signal that indicates whether an error has been detected in the receive path circuitry.

Abstract: An electromagnetic induction antenna including: a first inductor including windings; a second inductor including windings spaced apart from the first inductor; and an impedance connecting the first and second inductors; wherein the first and second inductor form a capacitor; wherein the capacitor is an electric field antenna, and wherein the inductor is a magnetic field antenna.

Abstract: Consistent with an example embodiment there is an electromagnetic induction field communication system, illustratively, for communicating on or around the body. Two transceivers (or receiver and transmitter) contain coils and capacitors suitable for generating an electromagnetic induction field surrounding the body and are capable of communicating therebetween.