RF Switch Gate Control
First Claim
1. An RF switch comprising:
- at least one transistor;
a gate resistor and a gate control transistor;
wherein said gate control transistor is parallel connected across said gate resistor;
and wherein said gate control transistor is configured to reduce resistance between a control terminal of said RF switch and a gate of said at least one transistor when said at least one transistor is in an OFF state.
2 Assignments
0 Petitions
Accused Products
Abstract
In one implementation, a switching circuit includes a pass switch including group III-V, for example III-Nitride, transistors coupled between an input of the switching circuit and an output of the switching circuit. The switching circuit further includes a shunt switch configured to ground the input of the switching circuit while the pass switch is disabled. The switching circuit also includes a gate control transistor configured to reduce resistance between a control terminal of the pass switch and/or the shunt switch and gate of the group III-V transistor of the pass switch and/or the shunt switch so as to enable and disable the pass switch and/or shunt switch. The gate control transistor can be coupled across a gate resistor of the pass switch and/or the shunt switch. The gate control transistor can reduce the resistance in order to lower the OFF state impedance of the pass switch and/or the shunt switch.
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Citations
22 Claims
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1. An RF switch comprising:
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at least one transistor; a gate resistor and a gate control transistor; wherein said gate control transistor is parallel connected across said gate resistor; and wherein said gate control transistor is configured to reduce resistance between a control terminal of said RF switch and a gate of said at least one transistor when said at least one transistor is in an OFF state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A switching circuit comprising:
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a pass switch comprising at least one transistor coupled between an input of said switching circuit and an output of said switching circuit; a shunt switch configured to ground said input of said switching circuit when said pass switch is disabled; a gate control transistor configured to reduce resistance between a control terminal of said pass switch and gate of said at least one transistor of said pass switch so as to improve isolation of said pass switch. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification