Multiband antenna using device metal features as part of the radiator
OwnerJavier Rodriguez De Luis, Alireza Mahanfar +2inventors
InventorsJavier Rodriguez De Luis, Alireza Mahanfar, Benjamin Shewan, Stanley Ng
Life of this patent
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Abstract
Mobile communication devices include multi-band antennas that use an internal conductor and a perimeter conductor to define antenna sections that are coupled together based on an RF wavelength of interest. The antenna sections can be selected or deselected by shunting to ground using a passive filter device or an active RF switch. In other examples, filters or switches are configured to couple an internal conductor and a portion of a perimeter conductor together to provide an effective antenna length associated with a selected frequency.
Claims20
A mobile communication device, comprising:
- a radio frequency transceiver;
- an antenna comprising a first antenna section extending within the mobile communication device and a second antenna section extending along a portion of a mobile device perimeter, wherein the first and second antenna sections are electrically couplable in series, the first antenna section having a length based on a first RF frequency band and the first antenna section and the second antenna section having a combined length based on a second RF frequency band;
- an antenna selector coupled to at least one of the first antenna section and the second antenna section, and configured to couple only one of the first antenna section and the combined first and second antenna sections to the radio frequency transceiver in a selected one of the first and second RF frequency bands.
A multi-band antenna, comprising:
- a conductive strip configured to fit within a mobile device housing and to extend along a housing width;
- a conductive perimeter hoop comprising at least one hoop break, wherein the conductive strip and the conductive perimeter hoop are electrically couplable in series;
- and
- an antenna selector situated along the conductive strip and electrically connected to the conductive strip and to a first ground contact, and that is configured to couple RF signals in a first frequency band to the first ground contact, and to decouple RF signals in a second frequency band from the first ground contact.
A method, comprising:
- radiating RF signals in a first frequency band from an internal conductor in a mobile device;
- radiating RF signals in a second frequency band from the internal conductor and at least a portion of a perimeter conductor that is coupled in series with the internal conductor.
Dependencies are inferred from the claim text.