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US 10,819,303 B1Granted
Amplifier with gain boosting
AssigneeQUALCOMM Incorporated
InventorsJoung Won Park, Bo Sun
Life of this patent
Estimating the term…
Abstract
In certain aspects, an amplifier includes a first transistor including a gate, a drain, and a source, wherein the gate of the first transistor is coupled to a first input of the amplifier. The amplifier also includes a second transistor including a gate, a drain, and a source, wherein the gate of the second transistor is coupled to a second input of the amplifier. The amplifier further includes a first signal path coupled between the first input of the amplifier and the source of the second transistor, a second signal path coupled between the second input of the amplifier and the source of the first transistor, a first load coupled to the drain of the first transistor, and a second load coupled to the drain of the second transistor.
Claims30
An amplifier, comprising:
- a first transistor including a gate, a drain, and a source, wherein the gate of the first transistor is coupled to a first input of the amplifier;
- a second transistor including a gate, a drain, and a source, wherein the gate of the second transistor is coupled to a second input of the amplifier;
- a first signal path coupled between the first input of the amplifier and the source of the second transistor, wherein the first signal path comprises a first resistor and a first capacitor coupled in series;
- a second signal path coupled between the second input of the amplifier and the source of the first transistor, wherein the second signal path comprises a second resistor and a second capacitor coupled in series;
- a first load coupled to the drain of the first transistor;
- and
- a second load coupled to the drain of the second transistor.
4 more elements
An amplifier, comprising:
- a first transistor including a gate, a drain, and a source, wherein the gate of the first transistor is coupled to a first input of the amplifier;
- a second transistor including a gate, a drain, and a source, wherein the gate of the second transistor is coupled to a second input of the amplifier;
- a first signal path coupled between the first input of the amplifier and the source of the second transistor, wherein the first signal path comprises a first capacitor;
- a second signal path coupled between the second input of the amplifier and the source of the first transistor, wherein the second signal path comprises a second capacitor;
- a first load coupled to the drain of the first transistor;
- a second load coupled to the drain of the second transistor;
- and
- a resistive-inductive circuit coupled between the source of the first transistor and the source of the second transistor, the resistive-inductive circuit comprising:
- a resistor;
- a first inductor;
- and
- a second inductor, wherein the first inductor and the second inductor are coupled in series with the resistor.
9 more elements
An amplifier, comprising:
- a first transistor including a gate, a drain, and a source, wherein the gate of the first transistor is coupled to a first input of the amplifier;
- a second transistor including a gate, a drain, and a source, wherein the gate of the second transistor is coupled to a second input of the amplifier;
- a first signal path coupled between the first input of the amplifier and the source of the second transistor;
- a second signal path coupled between the second input of the amplifier and the source of the first transistor;
- a first load coupled to the drain of the first transistor;
- a second load coupled to the drain of the second transistor;
- a first impedance-matching circuit coupled to the first input of the amplifier, the first impedance-matching circuit comprising:
- a first resistor;
- and
- a first inductor coupled in series with the first resistor;
- and
- a second impedance-matching circuit coupled to the second input of the amplifier, the second impedance-matching circuit comprising:
- a second resistor;
- and
- a second inductor coupled in series with the second resistor.
12 more elements
An amplifier, comprising:
- a first transistor including a gate, a drain, and a source, wherein the gate of the first transistor is coupled to a first input of the amplifier;
- a second transistor including a gate, a drain, and a source, wherein the gate of the second transistor is coupled to a second input of the amplifier;
- a first signal path coupled between the first input of the amplifier and the source of the second transistor;
- a second signal path coupled between the second input of the amplifier and the source of the first transistor;
- a first load coupled to the drain of the first transistor;
- a second load coupled to the drain of the second transistor;
- a third transistor including a gate, a drain, and a source, wherein the gate of the third transistor is coupled to the first input of the amplifier, and the drain of the third transistor is coupled to the first load;
- and
- a fourth transistor including a gate, a drain, and a source, wherein the gate of the fourth transistor is coupled to the second input of the amplifier, and the drain of the fourth transistor is coupled to the second load.
6 more elements
A system, comprising:
- a transmitter;
- a channel coupled to an output of the transmitter, the channel comprising a first transmission line and a second transmission line;
- an amplifier having a first input and a second input, wherein the first input is coupled to the first transmission line of the channel, the second input is coupled to the second transmission line of the channel, and the amplifier comprises:
- a first transistor including a gate, a drain, and a source, wherein the gate of the first transistor is coupled to the first input of the amplifier;
- a second transistor including a gate, a drain, and a source, wherein the gate of the second transistor is coupled to the second input of the amplifier;
- a first signal path coupled between the first input of the amplifier and the source of the second transistor, wherein the first signal path comprises a first resistor and a first capacitor coupled in series;
- a second signal path coupled between the second input of the amplifier and the source of the first transistor, wherein the first signal path comprises a second resistor and a second capacitor coupled in series;
- a first load coupled to the drain of the first transistor;
- and
- a second load coupled to the drain of the second transistor.
7 more elements
A method for increasing a gain of an amplifier, wherein the amplifier includes a first transistor, a second transistor, a first load coupled to a drain of the first transistor, and a second load coupled to a drain of the second transistor, the method comprising:
- driving a gate of the first transistor with a first input signal;
- driving a gate of the second transistor with a second input signal;
- coupling the first input signal to a source of the second transistor via a first capacitor and a first resistor coupled in series;
- and
- coupling the second input signal to a source of the first transistor via a second capacitor and a second resistor coupled in series.
2 more elements
An apparatus for increasing a gain of an amplifier, wherein the amplifier includes a first transistor, a second transistor, a first load coupled to a drain of the first transistor, and a second load coupled to a drain of the second transistor, the apparatus comprising:
- means for driving a gate of the first transistor with a first input signal;
- means for driving a gate of the second transistor with a second input signal;
- means for coupling the first input signal to a source of the second transistor via a first capacitor and a first resistor coupled in series;
- and
- means for coupling the second input signal to a source of the first transistor via a second capacitor and a second resistor coupled in series.
2 more elements
Dependencies are inferred from the claim text.