Abstract: A mobile communications device may include an RF signal source configured to generate RF signals over an RF frequency band(s), and an RF transmitter coupled to the RF signal source. The RF transmitter may include an RF amplifier configured to operate over a plurality of different power control levels. The RF amplifier may have an input configured to receive the RF signals from the RF signal source and an output having an impedance which changes based upon changes between the different power control levels. The RF transmitter may further include a shunt resistor(s) coupling the output of the amplifier to a voltage reference, and the shunt resistor(s) may be configured to decrease a highest impedance change of the RF amplifier output to below a threshold impedance level. An antenna(s) may be coupled to the output of the RF amplifier to operate over the at least one RF frequency band.

Abstract: A mobile communications device may include an RE signal source configured to generate RF signals over an RE frequency band(s), and an RF transmitter coupled to the RE signal source. The RF transmitter may include an RF amplifier configured to operate over a plurality of different power control levels. The RF amplifier may have an input configured to receive the RF signals from the RF signal source and an output having an impedance which changes based upon changes between the different power control levels. The RF transmitter may further include a shunt resistor(s) coupling the output of the amplifier to a voltage reference, and the shunt resistor(s) may be configured to decrease a highest impedance change of the RE amplifier output to below a threshold impedance level. An antenna(s) may be coupled to the output of the RF amplifier to operate over the at least one RF frequency band.

Abstract: A method includes displaying a representation of a navigation device on a touch-sensitive display of an electronic device, detecting movement of a touch on the touch-sensitive display, and utilizing an actuator to provide a first tactile feedback when a location of the touch is associated with the representation and a second tactile feedback when the location of the touch is not associated with the representation.