Abstract: An RF device may include RF circuitry having a PIN diode configured to switch an RF signal, and a biasing circuit. The biasing circuit may include a controllable power supply having a control input and an current output coupled to the PIN diode to selectively bias the PIN diode into an ON state, and a feedback circuit coupled between the current output and the control input of the controllable power supply to set a current delivered to the PIN diode in the ON state.

Abstract: A communications device may include a power amplifier having an input and an output, and a direct current (DC) feed network. The DC feed network may include a radio frequency (RF) transmission line stub having a first end coupled to the output of the power amplifier and a second end coupled to a DC feed voltage, and at least one RF shorting switch coupled between a corresponding location along the RF transmission line stub and a voltage reference. The communications device may further include a controller configured to selectively operate the at least one RF shorting switch to set an operating frequency band of the power amplifier.

Abstract: A switching circuit may include a first series diode, a second series diode, a first shunt diode coupled to the first series diode at a first control node, and a second shunt diode coupled to the second series diode at a second control node. A high voltage supply may generate a high voltage signal to be selectively applied to either the first or second control node. A dc-dc converter may cooperate with the high voltage supply to generate an intermediate bias voltage on the first and second shunt diodes so that the first series diode is reversed biased and the first shunt diode is forward biased when the high voltage control signal is applied to the first control node, and so that the second series diode is reversed biased and the second shunt diode is forward biased when the high voltage control signal is applied to the second control node.

Abstract: A switching circuit may include a first series diode, a second series diode, a first shunt diode coupled to the first series diode at a first control node, and a second shunt diode coupled to the second series diode at a second control node. A high voltage supply may generate a high voltage signal to be selectively applied to either the first or second control node. A dc-dc converter may cooperate with the high voltage supply to generate an intermediate bias voltage on the first and second shunt diodes so that the first series diode is reversed biased and the first shunt diode is forward biased when the high voltage control signal is applied to the first control node, and so that the second series diode is reversed biased and the second shunt diode is forward biased when the high voltage control signal is applied to the second control node.

Abstract: An electronic device may include a transistor device including a transistor package and transistor terminals extending outwardly therefrom. The electronic device may also include an electrically conductive body removably coupled to and shorting together the transistor terminals for electrostatic discharge (ESD) protection.

Abstract: An electronic device may include a transistor device including a transistor package and transistor terminals extending outwardly therefrom. The electronic device may also include an electrically conductive body removably coupled to and shorting together the transistor terminals for electrostatic discharge (ESD) protection.

Abstract: An electronic device may include a printed circuit board (PCB) including a ground plane and having first and second opposing surfaces. The electronic device may also include a radio frequency (RF) directional coupler carried by the first surface of the PCB and including a housing and circuitry therein defining an input port, an output port, and first and second monitoring ports. A first monitoring circuit may be carried by the first surface of the PCB and connected to the first monitoring port. The electronic device may also include a via conductor connected to the second monitoring port and extending through the PCB to the second surface thereof. A second monitoring circuit may also be carried by the second surface of the PCB and connected to the via conductor.

Abstract: An electronic device may include a printed circuit board (PCB) including a ground plane and having first and second opposing surfaces. The electronic device may also include a radio frequency (RF) directional coupler carried by the first surface of the PCB and including a housing and circuitry therein defining an input port, an output port, and first and second monitoring ports. A first monitoring circuit may be carried by the first surface of the PCB and connected to the first monitoring port. The electronic device may also include a via conductor connected to the second monitoring port and extending through the PCB to the second surface thereof. A second monitoring circuit may also be carried by the second surface of the PCB and connected to the via conductor.