An antenna device includes a power feed coil and a ring-shaped conductor arranged about an axis and a ring-shaped conductor including first and second edge end portions in an axial direction and a cavity inward from the first edge end portion. At least a portion of the cavity overlaps with a coil opening of the power feed coil when seen from the radial direction. The power feed coil causes electric field coupling, magnetic field coupling, and/or electromagnetic field coupling with the cavity. The ring-shaped conductor defines and functions as a booster antenna of the power feed coil. A substantial coil opening defining and functioning as an antenna is larger than that when only the power feed coil is provided, thus facilitating coupling with a communication partner-side antenna coil.

An antenna module includes: a magnetic core; a first electric wire constituting a coil into which the magnetic core is inserted; a capacitor having first and second terminals and connected in series to the coil; a second electric wire connected to the capacitor; and a base including a capacitor accommodating portion and a core accommodating portion, wherein the capacitor accommodating portion has first and second accommodating portions, the first terminal and a connecting portion of the first electric wire are connected to each other in the first accommodating portion, the second terminal and a connecting portion of the second electric wire are connected to each other in the second accommodating portion, and a portion of an opposite side to the connecting portion in the first electric wire and the second electric wire constitute a harness.

An antenna module which is disposed on an inside of an outside handle of a vehicle door, includes: a magnetic core; a coil into which the magnetic core is inserted; a circuit substrate to which the coil is connected; a base which holds the magnetic core and the circuit substrate; a plurality of conductors of which at least a portion is embedded in the base and which are connected to the circuit substrate; and a sealing portion which seals the coil, in which the base includes a connector portion, a core accommodating portion which accommodates the magnetic core and which is inserted into the coil, and a substrate accommodating portion which accommodates the circuit substrate.

An antenna module which is disposed on an inside of an outside handle of a vehicle door, includes: a magnetic core; a coil into which the magnetic core is inserted; a circuit substrate to which the coil is connected; a base which holds the magnetic core and the circuit substrate; a plurality of conductors of which at least a portion is embedded in the base and which are connected to the circuit substrate; and a sealing portion which seals the coil, in which the base includes a connector portion, a core accommodating portion which accommodates the magnetic core and which is inserted into the coil, and a substrate accommodating portion which accommodates the circuit substrate.

The present invention is about a device with a receiving antenna (110), wherein the receiving antenna (110) comprises a secondary coil (112), and being arranged for inductively connecting to a transmitting antenna (200) comprising a primary coil (202). The device of the invention is characterized in that the receiving antenna (110) further comprises a tertiary coil (114) arranged to have connection to a load in the device; and a capacitor (142) to which the secondary coil (112) is connected; and there is an encapsulation (120) comprising a low liquid permeability and non-conductive material encapsulating at least a part of the receiving antenna (110). Additionally, the present invention is about a power transfer system.

The present invention is about a device with a receiving antenna (110), wherein the receiving antenna (110) comprises a secondary coil (112), and being arranged for inductively connecting to a transmitting antenna (200) comprising a primary coil (202). The device of the invention is characterized in that the receiving antenna (110) further comprises a tertiary coil (114) arranged to have connection to a load in the device; and a capacitor (142) to which the secondary coil (112) is connected; and there is an encapsulation (120) comprising a low liquid permeability and non-conductive material encapsulating at least a part of the receiving antenna (110). Additionally, the present invention is about a power transfer system.

A loudspeaker module for a hearing device has a loudspeaker, which has a loudspeaker diaphragm and a drive for the loudspeaker diaphragm, and a housing, in which the loudspeaker is arranged. Furthermore, the loudspeaker module contains an antenna unit, which has an antenna coil having a coil axis, a tubular coil core, which forms a sound channel, and an antenna base plate, in which a sound passage opening that opens into the sound channel is formed. The antenna coil, the coil core and the antenna base plate in this case prescribe an antenna characteristic of the antenna unit. The side wall of the housing on the diaphragm side is in this case formed by the antenna base plate.

A loudspeaker module for a hearing device has a loudspeaker, which has a loudspeaker diaphragm and a drive for the loudspeaker diaphragm, and a housing, in which the loudspeaker is arranged. Furthermore, the loudspeaker module contains an antenna unit, which has an antenna coil having a coil axis, a tubular coil core, which forms a sound channel, and an antenna base plate, in which a sound passage opening that opens into the sound channel is formed. The antenna coil, the coil core and the antenna base plate in this case prescribe an antenna characteristic of the antenna unit. The side wall of the housing on the diaphragm side is in this case formed by the antenna base plate.

Described herein are improved configurations for a wireless power transfer for electronic devices that include at least one source magnetic resonator including a capacitively-loaded conducting loop coupled to a power source and configured to generate an oscillating magnetic field and at least one device magnetic resonator, distal from said source resonators, comprising a capacitively-loaded conducting loop configured to convert said oscillating magnetic fields into electrical energy, wherein at least one said resonator has a keep-out zone around the resonator that surrounds the resonator with a layer of non-lossy material.

A sensor probe with reduced coupling between the various antenna elements and suppression of radio frequency interference. In one embodiment the sensor probe comprises a first antenna and a second antenna. A first and a second decoupling loop is electrically connected to one of the first and second antennas with current flow in opposite directions in the first and second decoupling loops. A third decoupling loop is electrically connected to another one of the first and second antennas and physically disposed between the first and second decoupling loops. Coupling between the first and second antennas is responsive to a location of the third decoupling loop relative to the first and second decoupling loops.