A magnetic field focusing assembly includes a magnetic field generating device configured to generate a magnetic field, and a split ring resonator assembly configured to be magnetically coupled to the magnetic field generating device and configured to focus the magnetic field produced by the magnetic field generating device.

A magnetic field focusing assembly includes a magnetic field generating device configured to generate a magnetic field, and a split ring resonator assembly configured to be magnetically coupled to the magnetic field generating device and configured to focus the magnetic field produced by the magnetic field generating device.

A multiple input, multiple output (“MIMO”) antenna system is provided for operation on a radio frequency (“RF”) module that may be used in a wireless access device. The MIMO antenna system includes a plurality of multi-band antenna elements connected to a radio in a MIMO configuration. The multi-band antenna elements and the radio are configured to operate on an RF module. A reflector is formed on the RF module to contain the plurality of multi-band antenna elements and a common director is positioned in front of the multi-band antenna elements to concentrate signal communication in a sector. The plurality of multi-band antenna elements are oriented to provide a sector coverage pattern formed by beam patterns generated by each of the multi-band antenna elements.

The present invention refers to a reconfigurable antenna structure. The antenna structure comprises a radiating structure comprising one or more first radiating elements and a secondary radiating structure, operationally associated with said primary radiating structure. Said secondary radiating structure comprises a plurality of second radiating elements that can be selectively electrically connected/disconnected to each other to vary the configuration of said secondary radiating structure, so as to vary the radiating properties of the antenna structure. The antenna structure also comprises first reactive loads, electrically connected between said primary and secondary radiating structures, and second reactive loads, electrically connected to said secondary radiating structure. Said first reactive loads, said second reactive loads and said second radiating elements forming one or more circuitry structures that are electrically resonant in the operating frequency band of said antenna structure and that are electrically connected/disconnected to each other in a selective manner in accordance to the configuration selected for said second radiating structure, thereby maintaining constantly equal to zero the overall reactive load that is electrically connected to said primary radiating structure.

The antenna is provided with at least one shaped reflector and a primary radiating feed arranged in front of a reflector, which is capable of generating a primary beam with a footprint covering a nominal coverage zone. The antenna is also provided with an adjustment device for the primary beam of the primary radiating feed, whereby said adjustment device incorporates a secondary radiating array comprised of a number of elementary radiating feeds arranged around the primary radiating feed, a beam-forming network connected to the elementary radiating feeds which is capable of synthesizing a secondary beam covering a secondary coverage zone and having a footprint which is superimposed, at least partially, upon the footprint, and a coupling device connected to the primary reception chain of the primary radiating feed and the reception chain derived from the secondary radiating array.

The antenna is provided with at least one shaped reflector and a primary radiating feed arranged in front of a reflector, which is capable of generating a primary beam with a footprint covering a nominal coverage zone. The antenna is also provided with an adjustment device for the primary beam of the primary radiating feed, whereby said adjustment device incorporates a secondary radiating array comprised of a number of elementary radiating feeds arranged around the primary radiating feed, a beam-forming network connected to the elementary radiating feeds which is capable of synthesizing a secondary beam covering a secondary coverage zone and having a footprint which is superimposed, at least partially, upon the footprint, and a coupling device connected to the primary reception chain of the primary radiating feed and the reception chain derived from the secondary radiating array.

The present disclosure relates to systems for providing wireless power to implanted devices. Consistent with some embodiments, an antenna system for providing wireless power to an implanted device includes a primary antenna loop and at least one parasitic antenna loop. The primary antenna loop is configured to receive power from a power source and radiate the power toward the implanted device. The at least one parasitic antenna loop is configured to absorb a portion of the radiated power and to reradiate the absorbed power toward the implanted device. The power radiated by the primary antenna loop and the power reradiated by the at least one parasitic antenna loop form a wireless power transmission pattern broadly distributed at the surface of the individual's skin and becomes more focused as it travels into the individual's body toward the implanted device. The broad distribution pattern at the surface of the skin reduces the specific absorption rate of the transmission while focusing the transmission as it toward the implanted device improves the antenna system's transfer efficiency.

A sensor attachable to a body of a user includes a heartbeat sensor or a motion sensor; and an antenna including a resonator structure configured to interact with a radio frequency signal. The resonator structure includes a dielectric resonator element. The dielectric resonator element is configured to resonate as a response to the radio frequency signal for at least one of transmitting and receiving electromagnetic energy wirelessly.

An antenna apparatus having directivity includes an antenna portion having a power feeding portion, a plate-like first antenna element, and a second antenna element connected to a side of the first antenna element through the power feeding portion, the second antenna element having a width smaller than that of the first antenna element; and a plate-like parasitic element disposed opposite to the antenna portion. The parasitic element has a length that is approximately one-half or more of a wavelength of an operating frequency. The second antenna element has a length that is shorter than one-fourth of the wavelength of the operating frequency. The antenna portion and the parasitic element have a distance capable of being connected electromagnetically to each other.

An antenna apparatus having directivity includes an antenna portion having a power feeding portion, a plate-like first antenna element, and a second antenna element connected to a side of the first antenna element through the power feeding portion, the second antenna element having a width smaller than that of the first antenna element; and a plate-like parasitic element disposed opposite to the antenna portion. The parasitic element has a length that is approximately one-half or more of a wavelength of an operating frequency. The second antenna element has a length that is shorter than one-fourth of the wavelength of the operating frequency. The antenna portion and the parasitic element have a distance capable of being connected electromagnetically to each other.