Abstract: A radio-frequency transceiver is operable to transmit one or more radio-frequency signals via an antenna in a transmitter mode and to receive one or more radio-frequency signals via the antenna in a receiver mode. The transceiver comprises a power amplifier for use in the transmitter mode comprising a switched-capacitor array comprising a plurality of capacitance elements, and a low-noise amplifier for use in the receiver mode. The transceiver is configured, when operating in the receiver mode, to pull one or more of the capacitance elements in the switched-capacitor array to a ground potential.

Abstract: A switched capacitor power amplifier comprising a first, positive signal path and a second, negative signal path. The switched capacitor power amplifier is arranged to receive a digital control signal and, based on the digital control signal, to selectively activate both the first signal path and the second signal path, in a differential mode, to provide a first peak output power level, or either the first signal path or the second signal path, to produce a second peak output power level, wherein the second peak output power level is lower than the first output power level.

Abstract: A method for conducting an interactive financial simulation. The method is implemented at least in part by a computer and includes transmitting an initial financial projection for a fictitious company, transmitting a news story, generating a new share price for the fictitious company based on an index, generating a new financial projection for the fictitious company based on a set of decisions selected for implementation by a participant of the interactive financial simulation, and generating a final share price for the fictitious company based on a final set of decisions selected for implementation by the participant.