Radio frequency switch
First Claim
1. A radio frequency switch comprising a first port, a second port, and an N number of switch cells coupled in series between the first port and the second port, wherein N is a counting number greater than 1 and each of the N number of switch cells comprises:
- a field-effect transistor (FET) comprising a source, a drain, a gate, and a body, wherein the source of switch cell 1 is coupled to the first port, the drain of switch cell N is coupled to the second port, and the drain of switch cell X is coupled to the source of switch cell X+1 for switch cell 1 through switch cell N, wherein X is a counting number;
a first diode stack having a first anode coupled to the body of switch cell X and a first cathode coupled to the drain of switch cell X+1 for switch cell 1 through switch cell N−
1; and
a second diode stack having a second anode coupled to the body of switch cell X and a second cathode coupled to the source of switch cell X−
1 for switch cell 2 through switch cell N.
1 Assignment
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Accused Products
Abstract
A radio frequency switch having an N number of switch cells coupled in series is disclosed. Each of the switch cells includes a field-effect transistor (FET), wherein a source of switch cell 1 is coupled to a first port, a drain of switch cell N is coupled to a second port, and a drain of switch cell X is coupled to a source of switch cell X+1 for switch cell 1 through switch cell N. A first diode stack has a first anode coupled to the body of switch cell X and a first cathode coupled to a drain of switch cell X+1 for switch cell 1 through switch cell N−1, and a second diode stack has a second anode coupled to the body of switch cell X and a second cathode coupled to the source of switch cell X−1 for switch cell 2 through switch cell N.
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Citations
14 Claims
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1. A radio frequency switch comprising a first port, a second port, and an N number of switch cells coupled in series between the first port and the second port, wherein N is a counting number greater than 1 and each of the N number of switch cells comprises:
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a field-effect transistor (FET) comprising a source, a drain, a gate, and a body, wherein the source of switch cell 1 is coupled to the first port, the drain of switch cell N is coupled to the second port, and the drain of switch cell X is coupled to the source of switch cell X+1 for switch cell 1 through switch cell N, wherein X is a counting number; a first diode stack having a first anode coupled to the body of switch cell X and a first cathode coupled to the drain of switch cell X+1 for switch cell 1 through switch cell N−
1; anda second diode stack having a second anode coupled to the body of switch cell X and a second cathode coupled to the source of switch cell X−
1 for switch cell 2 through switch cell N. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification