Monolithic multi-throw diode switch structures are described. The monolithic multi-throw diode switches include a hybrid arrangement of diodes with different intrinsic regions. In one example, a method of manufacture of a monolithic multi-throw diode switch includes providing an intrinsic layer on an N-type semiconductor substrate, implanting a first P-type region to a first depth into the intrinsic layer to form a first PIN diode comprising a first effective intrinsic region of a first thickness, implanting a second P-type region to a second depth into the intrinsic layer to form a second PIN diode comprising a second effective intrinsic region of a second thickness, and forming at least one metal layer over the intrinsic layer to electrically couple the first PIN diode to a node between a common port and a first port of the switch.

A circuit includes a solid-state relay, a rectifier, and a current transformer-based power supply. The rectifier is adapted to be coupled to the solid-state relay. The rectifier is configured to provide a voltage to an output terminal responsive to the solid-state relay being in an off state. The current transformer-based power supply is coupled to the rectifier and is adapted to be coupled to a transformer. The current transformer-based power supply is configured to provide a voltage to the output terminal responsive to the solid-state relay being in an on state.

A hybrid diode silicon on insulator front end module and related method are provided. The front end module includes a transmit branch that includes a transmit circuit and a receive branch that includes a receive circuit. The receive circuit includes a low noise amplifier, a pin diode including an anode and a cathode; and a switch. The anode of the pin diode is operatively connected to an antenna switch port and an input voltage source. The cathode of the pin diode is operatively connected to a cathode of the switch. Turning on the switch facilitates a drainage of residual electrical current at the pin diode.

A circuit includes a solid-state relay, a rectifier, and a current transformer-based power supply. The rectifier is adapted to be coupled to the solid-state relay. The rectifier is configured to provide a voltage to an output terminal responsive to the solid-state relay being in an off state. The current transformer-based power supply is coupled to the rectifier and is adapted to be coupled to a transformer. The current transformer-based power supply is configured to provide a voltage to the output terminal responsive to the solid-state relay being in an on state.

A circuit includes a solid-state relay, a rectifier, and a current transformer-based power supply. The rectifier is adapted to be coupled to the solid-state relay. The rectifier is configured to provide a voltage to an output terminal responsive to the solid-state relay being in an off state. The current transformer-based power supply is coupled to the rectifier and is adapted to be coupled to a transformer. The current transformer-based power supply is configured to provide a voltage to the output terminal responsive to the solid-state relay being in an on state.

According to embodiments of the present invention, a switching circuit is provided. The switching circuit includes a transmission line arrangement including a plurality of transmission lines coupled to each other, and at least one switching element arrangement coupled to at least one transmission line of the plurality of transmission lines, wherein, in a first mode of operation, the at least one switching element arrangement is configured in a first state, wherein, in a second mode of operation, the at least one switching element arrangement is configured in a second state, and wherein the transmission line arrangement is configured to, depending on whether the at least one switching element arrangement is configured in the first state or the second state, generate a standing wave from an input signal received by the transmission line arrangement for coupling into an output signal, wherein the output signal is transmitted from the transmission line arrangement.

According to embodiments of the present invention, a switching circuit is provided. The switching circuit includes a transmission line arrangement including a plurality of transmission lines coupled to each other, and at least one switching element arrangement coupled to at least one transmission line of the plurality of transmission lines, wherein, in a first mode of operation, the at least one switching element arrangement is configured in a first state, wherein, in a second mode of operation, the at least one switching element arrangement is configured in a second state, and wherein the transmission line arrangement is configured to, depending on whether the at least one switching element arrangement is configured in the first state or the second state, generate a standing wave from an input signal received by the transmission line arrangement for coupling into an output signal, wherein the output signal is transmitted from the transmission line arrangement.

A switch module includes a switch circuit and a filter. The switch circuit includes two or more selection terminals, a common terminal provided for the two or more selection terminals, and first and second bypass terminals. The filter is connected between the first and second bypass terminals and reduces harmonics of a radio-frequency signal which passes through the filter. The switch circuit is selectively switched between a first connection mode and a second connection mode. In the first connection mode, the common terminal is connected to any of the two or more selection terminals. In the second connection mode, the common terminal is connected to the first bypass terminal and the second bypass terminal is connected to any of the two or more selection terminals.

A switch module includes a switch circuit and a filter. The switch circuit includes two or more selection terminals, a common terminal provided for the two or more selection terminals, and first and second bypass terminals. The filter is connected between the first and second bypass terminals and reduces harmonics of a radio-frequency signal which passes through the filter. The switch circuit is selectively switched between a first connection mode and a second connection mode. In the first connection mode, the common terminal is connected to any of the two or more selection terminals. In the second connection mode, the common terminal is connected to the first bypass terminal and the second bypass terminal is connected to any of the two or more selection terminals.

Methods and devices to reduce gate induced drain leakage current in RF switch stacks are disclosed. The described devices utilize multiple discharge paths and/or less negative body bias voltages without compromising non-linear performance and power handling capability of power switches. Moreover, more compact bias voltage generation circuits with smaller footprint can be implemented as part of the disclosed devices.