RF BRANCH WITH ACCELERATED TURN-ON AND HIGH Q VALUE
First Claim
1. A radio frequency (RF) switch, comprising:
- one or more stages, each stage comprising;
a signal input terminal;
a signal output terminal;
a control input terminal;
a switching device having a first terminal connected to the signal input terminal, a second terminal connected to the signal output terminal, and a third terminal for controlling the on/off state of the switching device;
a first resistor connected in series between the control input terminal and the third terminal; and
a first bypass switch for connecting each end of the first resistor to bypass the first resistor when the first bypass switch is closed;
a second resistor connected in series between the signal input terminal and the signal output terminal;
the one or more first resistors forming a first bias network and the one or more second bias resistors forming a second bias network.
1 Assignment
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Accused Products
Abstract
Improved Radio Frequency (RF) switches are provided herein. According to one aspect, an RF switch comprises one or more stages. In one embodiment, each stage comprises a signal input terminal, a signal output terminal, a control input terminal, and a switching device having a first terminal connected to the signal input terminal, a second terminal connected to the signal output terminal, and a third terminal for controlling the on/off state of the switching device. Each stage includes a first resistor connected in series between the control input terminal and the third terminal, a first bypass switch for electrically bypassing the first resistor, and a second resistor connected in series between the signal input terminal and the signal output terminal. The first resistors form a first bias network, the second resistors form a second bias network, and the switching devices are connected in series.
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Citations
20 Claims
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1. A radio frequency (RF) switch, comprising:
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one or more stages, each stage comprising; a signal input terminal; a signal output terminal; a control input terminal; a switching device having a first terminal connected to the signal input terminal, a second terminal connected to the signal output terminal, and a third terminal for controlling the on/off state of the switching device; a first resistor connected in series between the control input terminal and the third terminal; and a first bypass switch for connecting each end of the first resistor to bypass the first resistor when the first bypass switch is closed; a second resistor connected in series between the signal input terminal and the signal output terminal; the one or more first resistors forming a first bias network and the one or more second bias resistors forming a second bias network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification