摘要:
A radio frequency (RF) switch arrangement that improves the voltage handling capacity of a stack of switching elements (e.g., field-effect transistors (FETs)). The RF switch arrangement can include a ground plane and a stack arranged in relation to the ground plane, the stack including a plurality of switching elements coupled in series with one another. The RF switch arrangement can also include a plurality of capacitive elements, each of the plurality of capacitive elements providing a capacitive path across respective terminals of a corresponding one of the plurality of switching elements.
摘要:
Circuits are disclosed providing uniform voltage swing across transmit switches for improved device performance. An integrated circuit (IC) formed on a die includes a switch having one or more field effect transistors (FETs) defining an RF signal path between an input port and an output port, each FET having a body node, and the switch being configured to be capable of being in ON and OFF states. The IC further includes a voltage distribution circuit coupled to the switch and configured to reduce voltage distribution variation across the switch, the voltage distribution circuit including one or more elements coupled to a selected body node of one or more FETs to reduce voltage distribution variation across the switch when the switch is in an ON state and is encountered by a respective RF signal at the input port.
摘要:
Radio-frequency (RF) devices are disclosed providing reduced intermodulation distortion. Disclosed RF and semiconductor devices can include a semiconductor substrate, a switch formed on the semiconductor substrate having a stack of field-effect transistors (FETs) connected in series, and a capacitor formed on the semiconductor substrate and connected in series with the switch, the capacitor configured to inhibit a low-frequency blocker signal from mixing with a fundamental-frequency signal in the switch.
摘要:
Radio-frequency (RF) devices are disclosed having transistor gate voltage compensation to provide improved switching performance. RF devices, such as switches, include a plurality of field-effect transistors (FETs) connected in series between first and second nodes, each FET having a gate. A compensation network including a coupling circuit couples the gates of each pair of neighboring FETs.
摘要:
Circuits are disclosed providing uniform voltage swing across transmit switches for improved device performance. An integrated circuit (IC) formed on a die includes a switch having one or more field effect transistors (FETs) defining an RF signal path between an input port and an output port, each FET having a body node, and the switch being configured to be capable of being in ON and OFF states. The IC further includes a voltage distribution circuit coupled to the switch and configured to reduce voltage distribution variation across the switch, the voltage distribution circuit including one or more elements coupled to a selected body node of one or more FETs to reduce voltage distribution variation across the switch when the switch is in an ON state and is encountered by a respective RF signal at the input port.
摘要:
Radio-frequency (RF) switch circuits are disclosed providing improved switching performance. An RF switch system includes at least one field-effect transistor (FET) disposed between a first node and a second node, each having a respective source, drain, gate, and body. The system includes a coupling circuit including a first path and a second path, the first path being between the respective source or the respective drain and the respective gate of the at least one FET, the second path being between the respective source or the respective drain and the respective body of the at least one FET. The coupling circuit may be configured to allow discharge of interface charge from either or both of the coupled gate and body.
摘要:
Radio-frequency (RF) switch circuits are disclosed having transistor gate voltage compensation to provide improved switching performance. RF switch circuits include a plurality of field-effect transistors (FETs) connected in series between first and second nodes, each FET having a gate. A compensation network including a coupling circuit couples the gates of each pair of neighboring FETs.
摘要:
A radio frequency (RF) switch arrangement that improves the voltage handling capacity of a stack of switching elements (e.g., field-effect transistors (FETs)). The RF switch arrangement can include a ground plane and a stack arranged in relation to the ground plane, the stack including a plurality of switching elements coupled in series with one another. The RF switch arrangement can also include a plurality of capacitive elements, each of the plurality of capacitive elements providing a capacitive path across respective terminals of a corresponding one of the plurality of switching elements.
摘要:
Fabricating a radio-frequency switching circuit involves providing a substrate, forming, on the substrate, one or more field-effect transistors connected in series to define a radio-frequency signal path between an input end and an output end, each field-effect transistor having a source, a drain, a gate node, and a body node, and forming an element coupled to a selected body node of the one or more field-effect transistors connected in series to thereby provide reduced voltage distribution variation across the switching circuit.
摘要:
Radio-frequency (RF) switch circuits are disclosed providing improved switching performance. An RF switch system includes at least one field-effect transistor (FET) disposed between a first node and a second node, each having a respective source, drain, gate, and body. The system includes a coupling circuit including a first path and a second path, the first path being between the respective source or the respective drain and the respective gate of the at least one FET, the second path being between the respective source or the respective drain and the respective body of the at least one FET. The coupling circuit may be configured to allow discharge of interface charge from either or both of the coupled gate and body.