Blackberry Corporation

Research in Motion Corporation

Christopher Wehrmann

Michael Kühn

Andreas Handro

Jens Kampermann

Adrian Piseu Davis

Michael Khun

Michael Kuehn

Michael Kuhn

A system that incorporates teachings of the present disclosure may include, for example, a memory, a transceiver, a plurality of antennas coupled with the transceiver, a matching network coupled with at least one of the plurality of antennas, a detector coupled with the matching network where the detector obtains operational data associated with at least two of the plurality of antennas, and a controller circuit coupled with the detector and the matching network. The controller circuit can analyze the operational data to determine an operational data differential between the at least two of the plurality of antennas. The controller circuit selects a use case for the communication device from among a group of use cases stored in the memory based on the operational data differential. Additional embodiments are disclosed.

Method and apparatus for radio frequency tuning utilizing a determined use case

A tri-band antenna for noncellular wireless applications is provided. The antenna comprises: a first radiating arm for generating a first resonance in a first frequency band, the first radiating arm further enabled for connection to an antenna tuning circuit; the first radiating arm comprising a capacitive coupling structure; a coupling arm separated by a gap from the first radiating arm; a second radiating arm for generating a second resonance in a second frequency band lower than the first frequency band, the second radiating arm connected to the coupling arm such that the second radiating arm is capacitively coupled to the first radiating arm; and a third radiating arm for generating a third resonance in a third frequency band lower than the second frequency band, the third radiating arm connected to the coupling arm such that the third radiating arm is capacitively coupled to the first radiating arm.

Tri-band antenna for noncellular wireless applications

A mobile wireless communications device may include a portable housing and wireless transceiver circuitry carried by the portable housing. The mobile wireless communications device may also include an antenna carried by the portable housing and coupled to the wireless transceiver circuitry, and a light source carried by the portable housing. The device may further include a keyboard assembly carried by the portable housing including a light guide coupled to the light source and having input key receiving openings therein, and a mask carried by the light guide and having input key receiving openings. The mask may include spaced apart electrically conductive elongate members positioned relative to the antenna to reduce a Specific Absorption Rate value for the mobile wireless communications device.

Mobile wireless communications device including space apart elongate members for reducing SAR and related methods

Mobile wireless communications device including spaced apart elongate members for reducing SAR and related methods

Growing community of inventors

Bochum, Germany

Christopher Wehrmann