Triquint Semiconductor Corporation

Tobias Mangold

Andreas Weisgerber

Embodiments provide a radio frequency (RF) switching apparatus including an RF switching device configured to receive an RF input signal and to pass an RF output signal if the RF switching device is activated. The RF switching apparatus may include a control terminal to receive a control signal to activate the RF switching device. A gate resistor may be coupled between the control terminal and a gate terminal of the RF switching device. A helper circuit may be coupled in parallel with the gate resistor. The helper circuit may be configured to provide a temporary conductive path between the control terminal and the gate terminal in response to a state transition of the control signal. The helper circuit may provide an open circuit between the control terminal and the gate terminal during a steady state of the control signal between state transitions.

Radio frequency switching device with fast transient response time

According to an embodiment, a method is provided that includes: adapting the impedance of the load dependent on working conditions of the active device using a controllable output-side adaptation network coupled between an output-side terminal of a transformer and an output-side node, to generate an adapted impedance of the load, adjusting the adapted impedance independent of the working conditions of the active device, using the transformer including a first inductor having a first terminal to receive the output of the active device via the input-side node, a second inductor having an output-side terminal, where the second inductor is magnetically coupled to the first inductor.

Method and circuit for transforming the impedance of a load

Signal traces are patterned on a top surface of a substrate. A ground trace is patterned on the top surface of the substrate for at least one pair of the signal traces. A die paddle is patterned on the top surface of the substrate, and the die paddle is connected directly with the ground trace.

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Weilheim, Germany

Tobias Mangold