Abstract: An antenna device includes a first antenna configured to operate within a first frequency band, a second antenna configured to operate within a second frequency band, wherein the second antenna is separated from the first antenna by a distance, and at least one parasitic antenna element, wherein the at least one parasitic element is substantially orthogonal to the first antenna, to the second antenna, or to both the first and second antennas, so as to substantially isolate between the first antenna and the second antenna.

Abstract: A hearing aid includes: a hearing aid assembly having an antenna for emission of an electromagnetic field, a transceiver for wireless data communication, the transceiver interconnected with the antenna, and a housing for accommodation of the antenna; wherein the antenna comprises a first section having a length between at least one sixteenth wavelength and a full wavelength of the electromagnetic field, the antenna being positioned so that current flows in the first section in a direction that corresponds with an ear-to-ear axis of a user when the housing is worn in its operational position by the user, whereby the electromagnetic field emitted by the antenna propagates along a surface of a head of the user with its electrical field substantially orthogonal to the surface of the head of the user.

Abstract: A hearing aid having a hearing aid housing, includes: a microphone; a processing unit configured to process an audio signal for compensating a hearing loss of a user; a battery provided closer to a second end of the hearing aid housing than to a first end of the hearing aid housing; one or more wireless communication units for wireless communication; at least a part of a first antenna for electromagnetic field emission and/or electromagnetic field reception, the at least a part of the first antenna being interconnected with one of the one or more wireless communication units; and a second antenna for electromagnetic field emission and/or electromagnetic field reception, the second antenna being interconnected with one of the one or more wireless communication units; wherein the second antenna is between a center axis of the battery and the second end of the hearing aid.

Abstract: An apparatus including an antenna; a first part including a first ground plane portion; a second part including a second ground plane portion; a first electrical connection between the first part and a second part; and a second electrical connection between the first ground plane portion and the second ground plane portion that includes a reactive component.

Abstract: A hearing aid includes: a hearing aid assembly having an antenna for emission of an electromagnetic field, a transceiver for wireless data communication, the transceiver interconnected with the antenna, and a housing for accommodation of the antenna; wherein the antenna comprises a first section having a length between at least one sixteenth wavelength and a full wavelength of the electromagnetic field, the antenna being positioned so that current flows in the first section in a direction that corresponds with an ear-to-ear axis of a user when the housing is worn in its operational position by the user, whereby the electromagnetic field emitted by the antenna propagates along a surface of a head of the user with its electrical field substantially orthogonal to the surface of the head of the user.

Abstract: A hearing aid having a hearing aid housing, includes: a microphone; a processing unit configured to process an audio signal for compensating a hearing loss of a user; a battery provided closer to a second end of the hearing aid housing than to a first end of the hearing aid housing; one or more wireless communication units for wireless communication; at least a part of a first antenna for electromagnetic field emission and/or electromagnetic field reception, the at least a part of the first antenna being interconnected with one of the one or more wireless communication units; and a second antenna for electromagnetic field emission and/or electromagnetic field reception, the second antenna being interconnected with one of the one or more wireless communication units; wherein the second antenna is between a center axis of the battery and the second end of the hearing aid.

Abstract: An antenna device configured to be used at or in proximity to a user, the antenna device includes: an antenna structure having a conducting element, the conducting element extending over a length of between 1/16 of a wavelength and a full wavelength in a direction substantially orthogonal to a surface of the user, when the antenna device is provided in an intended operational position. A device includes: a housing having an operational position with respect to a user of the device; and an antenna structure coupled to the housing and having a conducting element, wherein the antenna structure is configured to emit an electromagnetic field so that the electromagnetic field propagates in a direction having a major directional vector that corresponds with a surface of a user using the device when the housing is at the operative position.

Abstract: An antenna device configured to be used at or in proximity to a user, the antenna device includes: an antenna structure having a conducting element, the conducting element extending over a length of between 1/16 of a wavelength and a full wavelength in a direction substantially orthogonal to a surface of the user, when the antenna device is provided in an intended operational position. A device includes: a housing having an operational position with respect to a user of the device; and an antenna structure coupled to the housing and having a conducting element, wherein the antenna structure is configured to emit an electromagnetic field so that the electromagnetic field propagates in a direction having a major directional vector that corresponds with a surface of a user using the device when the housing is at the operative position.

Abstract: This disclosure provides a hearing aid comprising an assembly. The assembly comprises a microphone for reception of sound and conversion of the received sound into a corresponding first audio signal, and a signal processor for processing the first audio signal into a second audio signal compensating a hearing loss of a user of the hearing aid. The assembly comprises a wireless communication unit configured for wireless communication connected with an antenna for emission and/or reception of an electromagnetic field. The antenna comprises a first feed point connected to the wireless communication unit; and a second feed point. The antenna comprises a first branch connected to the first feed point.

Abstract: An apparatus including an antenna; a first part including a first ground plane portion; a second part including a second ground plane portion; a first electrical connection between the first part and a second part; and a second electrical connection between the first ground plane portion and the second ground plane portion that includes a reactive component.

Abstract: A hearing aid having a hearing aid housing, includes: a microphone; a processing unit configured to process an audio signal for compensating a hearing loss of a user; a battery provided closer to a second end of the hearing aid housing than to a first end of the hearing aid housing; one or more wireless communication units for wireless communication; at least a part of a first antenna for electromagnetic field emission and/or electromagnetic field reception, the at least a part of the first antenna being interconnected with one of the one or more wireless communication units; and a second antenna for electromagnetic field emission and/or electromagnetic field reception, the second antenna being interconnected with one of the one or more wireless communication units; wherein the second antenna is between a center axis of the battery and the second end of the hearing aid.

Abstract: A hearing aid includes: a microphone configured to receive sound; a processing unit configured to provide a processed audio signal for compensating a hearing loss of a user; a printed circuit board comprising a first layer; an antenna provided as an electrically conductive material on the first layer; a wireless communication unit for wireless communication; one or more flexible printed circuit board having a first flexible printed circuit board; and a polarization element configured for forming a polarization of the antenna, where the polarization element is on the first flexible printed circuit board.

Abstract: A hearing aid includes: a hearing aid assembly having an antenna for emission of an electromagnetic field, a transceiver for wireless data communication, the transceiver interconnected with the antenna, and a housing for accommodation of the antenna; wherein the antenna comprises a first section having a length between at least one sixteenth wavelength and a full wavelength of the electromagnetic field, the antenna being positioned so that current flows in the first section in a direction that corresponds with an ear-to-ear axis of a user when the housing is worn in its operational position by the user, whereby the electromagnetic field emitted by the antenna propagates along a surface of a head of the user with its electrical field substantially orthogonal to the surface of the head of the user.

Abstract: A hearing aid includes a hearing aid assembly having an antenna for emission of an electromagnetic field, a transceiver for wireless data communication, the transceiver interconnected with the antenna, and a housing for accommodation of the antenna, wherein the antenna comprises a first section having a length between at least one sixteenth wavelength and a full wavelength of the electromagnetic field, the antenna being positioned so that current flows in the first section in a direction that corresponds with an ear-to-ear axis of a user when the housing is worn in its operational position by the user, whereby the electromagnetic field emitted by the antenna propagates along a surface of a head of the user with its electrical field substantially orthogonal to the surface of the head of the user.

Abstract: A hearing aid includes: a microphone configured to receive sound; a processing unit configured to provide a processed audio signal for compensating a hearing loss of a user; a printed circuit board comprising a first layer; an antenna provided as an electrically conductive material on the first layer; a wireless communication unit for wireless communication; one or more flexible printed circuit board having a first flexible printed circuit board; and a polarization element configured for forming a polarization of the antenna, where the polarization element is on the first flexible printed circuit board.

Abstract: A hearing aid having a hearing aid housing, includes: a microphone; a processing unit configured to process an audio signal for compensating a hearing loss of a user; a battery provided closer to a second end of the hearing aid housing than to a first end of the hearing aid housing; one or more wireless communication units for wireless communication; at least a part of a first antenna for electromagnetic field emission and/or electromagnetic field reception, the at least a part of the first antenna being interconnected with one of the one or more wireless communication units; and a second antenna for electromagnetic field emission and/or electromagnetic field reception, the second antenna being interconnected with one of the one or more wireless communication units; wherein the second antenna is between a center axis of the battery and the second end of the hearing aid.

Abstract: An apparatus including an antenna; a first part including a first ground plane portion; a second part including a second ground plane portion; a first electrical connection between the first part and a second part; and a second electrical connection between the first ground plane portion and the second ground plane portion that includes a reactive component.

Abstract: A hearing aid system comprising a microphone device for wireless communication with a hearing aid to be worn at or in proximity to a first user, the microphone device configured to be worn at or in proximity to a second user, the microphone device includes: a housing; a microphone for conversion of an acoustic sound signal into an electrical signal; a transceiver for wireless radio frequency communication; a first antenna connectable to the transceiver; and a second antenna connectable to the transceiver; wherein the first antenna is accommodated within the housing; and wherein the second antenna is external to the housing such that the second antenna can be carried at or in proximity to the second user at a distance from the housing; and wherein the microphone device further comprises a distributor for distributing power to the first antenna, to the second antenna, or to both.

Abstract: A hearing aid includes: a microphone for reception of sound and conversion of the received sound into a corresponding first audio signal; a signal processor for processing the first audio signal into a second audio signal compensating a hearing loss of a user of the hearing aid; a wireless communication unit connected to the signal processor for wireless communication and being coupled with an antenna for emission and/or reception of an electromagnetic field; a detector connected to the wireless communication unit, the detector being configured to detect a signal strength of a communication signal; and an adjustable antenna matching mechanism configured to improve antenna reception and/or antenna emission of the antenna based on the detected signal strength of the received communication signal.

Abstract: An apparatus including an antenna; a first part including a first ground plane portion; a second part including a second ground plane portion; a first electrical connection between the first part and the second part; and a second electrical connection between the first ground plane portion and the second ground plane portion that includes a reactive component.