MULTIBAND ANTENNA USING DEVICE METAL FEATURES AS PART OF THE RADIATOR

摘要

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.

主权项

1. 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.