Abstract: A MIMO antenna includes first and second radiating elements and a conductive neutralization line. Each of the first and second radiating elements includes a straight portion connected to a serpentine portion. The straight and serpentine portions are configured to resonate in at least two spaced apart RF frequency ranges in response to the straight portion being electrically excited through a RF feed. The conductive neutralization line conducts resonant currents between the first and second radiating elements and has a conductive length that is configured to phase shift the conducted resonant currents to cause at least partial cancellation of currents in the first and second radiating elements which are generated by wireless RF signals received by the first and second radiating elements from each other.

Abstract: A MIMO antenna includes first and second radiating elements, a conductive neutralization line, and first and second parasitic radiating elements. Each of the first and second radiating elements includes a straight portion connected to a serpentine portion. The straight and serpentine portions are configured to resonate in at least two spaced apart RF frequency ranges in response to the straight portion being electrically excited through a RF feed. The conductive neutralization line conducts resonant currents between the first and second radiating elements and has a conductive length that is configured to phase shift the conducted resonant currents to cause at least partial cancellation of currents in the first and second radiating elements which are generated by wireless RF signals received by the first and second radiating element from each other.

Abstract: A method for filling a toner cartridge, intended for duplication apparatus, with toner powder includes the steps of; placing the toner cartridge in relation to a device for refilling, inserting a hollow supply element through the passage in the cartridge and into the interior of the toner cartridge, which supply element is applied to a container containing toner powder and in flow communication with the interior of the container, and by feed element feed the powder from the container through the supply element and into the toner cartridge.