Patent ID: 11916546
Assignee: INFINEON TECHNOLOGIES AG
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A radio frequency (RF) switch device comprising:
a first transistor and a second transistor, wherein the first and second transistors are coupled in series at a drain terminal of the first transistor and a source terminal of the second transistor to establish a switchable RF path;
a first resistor divider including a first resistor and a second resistor and having a first terminal, a second terminal, and a tap defined at an interconnection of the first resistor and second resistor, the first terminal directly coupled to the drain terminal of the first transistor and the second terminal directly coupled to a source terminal of the first transistor;
a first compensation network coupled between a body terminal of the first transistor and a drain terminal of the second transistor, wherein the first compensation network is configured to establish a path for current flowing between the body terminal of the first transistor and the drain terminal of the second transistor in a first direction and to block current flowing therebetween in a second direction opposite to the first direction; and
a first bootstrapping network having a first terminal directly coupled to a tap of the first resistor divider, a second terminal coupled to a gate terminal of the first transistor, and a third terminal coupled to the body terminal of the first transistor, wherein the first bootstrapping network is configured to establish a low impedance path between the gate terminal and the body terminal of the first transistor in response to a first voltage value of the drain terminal of the first transistor, and wherein the first bootstrapping network is configured to establish a high impedance path between the gate terminal and the body terminal of the first transistor in response to a second voltage value of the drain terminal of the first transistor.