Adjustable power amplifier and applications thereof
First Claim
1. An adjustable power amplifier comprises:
- an input capacitor having a first plate and a second plate, wherein the first plate of the input capacitor is operably coupled to receive an input radio frequency (RF) signal;
an input transistor having a gate, a drain, and a source, wherein the gate of the input transistor is operably coupled to the second plate of the input capacitor and the source of the input transistor is operably coupled to a circuit ground;
an inductor having a first node and a second node, wherein the first node of the inductor is operably coupled to a power supply and the second node of the inductor is operably coupled to the drain of the input transistor;
an output capacitor having a first plate and a second plate, wherein the first plate of the output capacitor is operably coupled to the drain of the input transistor and the second node of the output capacitor provides an output of the adjustable power amplifier; and
a gain adjust module having a first node and a second node, wherein the first node of the gain adjust module is operably coupled to the gate of the input transistor and the second node of the gain adjust module is operably coupled to the circuit ground, wherein the gain adjust module adjusts gain of the adjustable power amplifier in accordance with an operational-based control signal.
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Accused Products
Abstract
An adjustable power amplifier includes an input capacitor, an input transistor, an inductor, an output capacitor, and a gain module. The input capacitor includes a first plate and a second plate, wherein the first plate of the input capacitor is operably coupled to receive an input radio frequency (RF) signal. The input transistor includes a gate, a drain, and a source, wherein the gate of the input transistor is operably coupled to the second plate of the input capacitor and the source of the input transistor is operably coupled to a circuit ground. The inductor includes a first node and a second node, wherein the first node of the inductor is operably coupled to a power supply and the second node of the inductor is operably coupled to the drain of the input transistor. The output capacitor includes a first plate and a second plate, wherein the first plate of the output capacitor is operably coupled to the drain of the input transistor and the second node of the output capacitor provides an output of the adjustable power amplifier. The gain adjust module includes a first node and a second node, wherein the first node of the gain adjust module is operably coupled to the gate of the input transistor and the second node of the gain adjust module is operably coupled to the circuit ground, wherein the gain adjust module adjusts gain of the adjustable power amplifier in accordance with an operational-based control signal.
18 Citations
26 Claims
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1. An adjustable power amplifier comprises:
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an input capacitor having a first plate and a second plate, wherein the first plate of the input capacitor is operably coupled to receive an input radio frequency (RF) signal;
an input transistor having a gate, a drain, and a source, wherein the gate of the input transistor is operably coupled to the second plate of the input capacitor and the source of the input transistor is operably coupled to a circuit ground;
an inductor having a first node and a second node, wherein the first node of the inductor is operably coupled to a power supply and the second node of the inductor is operably coupled to the drain of the input transistor;
an output capacitor having a first plate and a second plate, wherein the first plate of the output capacitor is operably coupled to the drain of the input transistor and the second node of the output capacitor provides an output of the adjustable power amplifier; and
a gain adjust module having a first node and a second node, wherein the first node of the gain adjust module is operably coupled to the gate of the input transistor and the second node of the gain adjust module is operably coupled to the circuit ground, wherein the gain adjust module adjusts gain of the adjustable power amplifier in accordance with an operational-based control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An adjustable power amplifier comprises:
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an input capacitor having a first plate and a second plate, wherein the first plate of the input capacitor is operably coupled to receive an input radio frequency (RF) signal;
an input transistor having a gate, a drain, and a source, wherein the gate of the input transistor is operably coupled to the second plate of the input capacitor and the source of the input transistor is operably coupled to a circuit ground;
an inductor having a first node and a second node, wherein the first node of the inductor is operably coupled to a power supply and the second node of the inductor is operably coupled to the drain of the input transistor;
an output capacitor having a first plate and a second plate, wherein the first plate of the output capacitor is operably coupled to the drain of the input transistor and the second node of the output capacitor provides an output of the adjustable power amplifier; and
a gain adjust module having a first node and a second node, wherein the first node of the gain adjust module is operably coupled to the first plate of the output capacitor and the second node of the gain adjust module is operably coupled to the circuit ground, wherein the gain adjust module adjusts gain of the adjustable power amplifier in accordance with an operational-based control signal. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An adjustable power amplifier comprises:
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an input capacitor having a first plate and a second plate, wherein the first plate of the input capacitor is operably coupled to receive an input radio frequency (RF) signal;
an input transistor having a gate, a drain, and a source, wherein the gate of the input transistor is operably coupled to the second plate of the input capacitor and the source of the input transistor is operably coupled to a circuit ground;
an inductor having a first node and a second node, wherein the first node of the inductor is operably coupled to a power supply and the second node of the inductor is operably coupled to the drain of the input transistor;
an output capacitor having a first plate and a second plate, wherein the first plate of the output capacitor is operably coupled to the drain of the input transistor and the second node of the output capacitor provides an output of the adjustable power amplifier; and
an adjustable bias circuit operably coupled to the gate of the input transistor to provide a bias voltage in accordance with an operational-based control signal. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A radio comprises:
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a receiver section operably coupled to convert inbound radio frequency (RF) signals into inbound baseband signals; and
a transmitter section operably coupled to convert outbound baseband signals into outbound RF signals, wherein the transmitter section includes;
an adjustable power amplifier including;
an input capacitor having a first plate and a second plate, wherein the first plate of the input capacitor is operably coupled to receive an input radio frequency (RF) signal;
an input transistor having a gate, a drain, and a source, wherein the gate of the input transistor is operably coupled to the second plate of the input capacitor and the source of the input transistor is operably coupled to a circuit ground;
an inductor having a first node and a second node, wherein the first node of the inductor is operably coupled to a power supply and the second node of the inductor is operably coupled to the drain of the input transistor;
an output capacitor having a first plate and a second plate, wherein the first plate of the output capacitor is operably coupled to the drain of the input transistor and the second node of the output capacitor provides an output of the adjustable power amplifier, wherein the adjustable power amplifier further includes at least one of;
a gain adjust module having a first node and a second node, wherein the first node of the gain adjust module is operably coupled to the gate of the input transistor and the second node of the gain adjust module is operably coupled to the circuit ground, wherein the gain adjust module adjusts gain of the adjustable power amplifier in accordance with an operational-based control signal;
a second gain adjust module having a first node and a second node, wherein the first node of the second gain adjust module is operably coupled to the first plate of the output capacitor and the second node of the second gain adjust module is operably coupled to the circuit ground, wherein the second gain adjust module further adjusts the gain of the adjustable power amplifier in accordance with the operational-based control signal; and
an adjustable bias circuit operably coupled to the gate of the input transistor to provide a bias voltage in accordance with the operational-based control signal. - View Dependent Claims (23, 24, 25, 26)
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Specification