Non-linearity compensation in radio frequency switches and devices
First Claim
Patent Images
1. A radio-frequency switch comprising:
- at least one field-effect transistor disposed between a first node and a second node, each of the at least one field-effect transistor having a respective source, drain, gate, and body; and
a compensation circuit connected to the respective drain of the at least one field-effect transistor, the compensation circuit configured to compensate a non-linearity effect generated by the at least one field-effect transistor.
0 Assignments
0 Petitions
Accused Products
Abstract
Radio frequency (RF) switches and devices provide improved switching performance. An RF switch includes at least one field-effect transistor (FET) disposed between a first node and a second node, each of the at least one FET having a respective source, drain, gate, and body, and a compensation circuit connected to the respective drain of the at least one FET that compensates a non-linearity effect generated by the at least one FET.
-
Citations
20 Claims
-
1. A radio-frequency switch comprising:
-
at least one field-effect transistor disposed between a first node and a second node, each of the at least one field-effect transistor having a respective source, drain, gate, and body; and a compensation circuit connected to the respective drain of the at least one field-effect transistor, the compensation circuit configured to compensate a non-linearity effect generated by the at least one field-effect transistor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method for operating a radio-frequency (RF) switch, the method comprising:
-
controlling at least one field-effect transistor disposed between first and second nodes so that the at least one field-effect transistor is in an ON state or an OFF state; and compensating a non-linear effect of the field-effect transistor by applying a non-linear signal to a source or a drain of the at least one field-effect transistor. - View Dependent Claims (12, 13, 14, 15, 16, 17)
-
-
18. A wireless device comprising:
-
a transceiver configured to process radio-frequency signals; an antenna in communication with the transceiver configured to facilitate transmission of an amplified radio-frequency signal; a power amplifier connected to the transceiver and configured to generate the amplified radio-frequency signal; and a switch connected to the antenna and the power amplifier and configured to selectively route the amplified radio-frequency signal to the antenna, the switch including at least one field-effect transistor, the switch further including a compensation circuit connected to a respective source or a respective drain of each of the at least one field-effect transistor, the compensation circuit configured to compensate a non-linearity effect generated by the at least one field-effect transistor. - View Dependent Claims (19, 20)
-
Specification