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US 10,412,795 B2Granted
Power measurement via bond wire coupling
AssigneeNXP USA, Inc.
InventorsXiaofei Qiu, Lionel Mongin, Pierre Piel
Life of this patent
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Abstract
A device includes an output circuit that includes an input port at which a signal is received, an output port at which an impedance-adjusted representation of the signal is provided, and a set of bond wires connecting the input and output ports. The device further includes first and second couplers, each including a respective coupling bond wire along the set of bond wires for inductive coupling with the set of bond wires. The first coupler is oriented relative to the distributed-element output circuit to measure forward power provided by the impedance-adjusted representation of the signal via the output port. The second coupler is oriented relative to the output circuit to measure reflected power received via the output port.
Claims21
A device comprising:
- an output circuit coupled to an output of a transistor device, the output circuit including
- an input port at which a signal is received,
- an output port at which an impedance-adjusted representation of the signal is provided, and
- a set of bond wires connecting the input and output ports;
- a first coupler including a first coupling bond wire positioned along the set of bond wires so that inductive coupling occurs between the first coupling bond wire and the set of bond wires, wherein the first coupler includes a first measurement port coupled to a first end of the first coupling bond wire, and a first termination coupled to a second end of the first coupling bond wire, and wherein a signal indicative of forward power between the input port and the output port is provided at the first measurement port;
- and
- a second coupler including a second coupling bond wire positioned along the set of bond wires so that inductive coupling occurs between the second coupling bond wire and the set of bond wires, wherein the second coupler includes a second measurement port coupled to a first end of the second coupling bond wire, and a second termination coupled to a second end of the second coupling bond wire, and wherein a signal indicative of reverse power between the output port and the input port is provided at the second measurement port.
4 more elements
A power amplifier comprising:
- a transistor device configured to generate a signal;
- an output circuit that establishes an impedance of the power amplifier without a lumped element-based phase shift in the generated signal, the output circuit including
- an input port at which the generated signal is received,
- an output port at which an impedance-adjusted representation of the generated signal is provided, and
- a set of bond wires connecting the input and output ports;
- a first coupler including a first coupling bond wire positioned along the set of bond wires so that inductive coupling occurs between the first coupling bond wire and the set of bond wires, wherein the first coupler includes a first measurement port coupled to a first end of the first coupling bond wire, and a first termination coupled to a second end of the first coupling bond wire, and wherein a signal indicative of forward power between the input port and the output port is provided at the first measurement port;
- and
- a second coupler including a second coupling bond wire positioned along the set of bond wires so that inductive coupling occurs between the second coupling bond wire and the set of bond wires, wherein the second coupler includes a second measurement port coupled to a first end of the second coupling bond wire, and a second termination coupled to a second end of the second coupling bond wire, and wherein a signal indicative of reverse power between the output port and the input port is provided at the second measurement port.
5 more elements
A method of measuring forward power and reflected power for a power amplifier, the method comprising:
- generating a signal with a transistor device of the power amplifier;
- adjusting an output impedance of the power amplifier for the generated signal via an output circuit, the output circuit including
- an input port at which the generated signal is received,
- an output port at which an impedance-adjusted representation of the generated signal is provided, and
- a set of bond wires connecting the input and output ports;
- developing a forward power measurement at a first measurement port via inductive coupling between a first coupling bond wire positioned along and inductively coupled with the set of bond wires;
- and
- developing a reflected power measurement at a second measurement port via inductive coupling between a second coupling bond wire positioned along and inductively coupled with the set of bond wires.
5 more elements
A solid-state system comprising:
- a heating cavity configured to contain a load to be heated;
- a transistor device configured to generate a signal to support introduction of energy into the heating cavity;
- an output circuit comprising an input port at which the generated signal is received, an output port at which a representation of the generated signal is provided, and a set of bond wires connecting the input and output ports;
- a power detection circuit that includes
- a first coupler including a first coupling bond wire positioned along the set of bond wires so that inductive coupling occurs between the first coupling bond wire and the set of bond wires, wherein the first coupler includes a first measurement port coupled to a first end of the first coupling bond wire, and a first termination coupled to a second end of the first coupling bond wire, and wherein a signal indicative of forward power between the input port and the output port is provided at the first measurement port, and
- a second coupler including a second coupling bond wire positioned along the set of bond wires so that inductive coupling occurs between the second coupling bond wire and the set of bond wires, wherein the second coupler includes a second measurement port coupled to a first end of the second coupling bond wire, and a second termination coupled to a second end of the second coupling bond wire, and wherein a signal indicative of reverse power between the output port and the input port is provided at the second measurement port;
- and
- a processing unit coupled to the power detection circuit to receive the signal indicative of the forward power and the signal indicative of the reflected power.
5 more elements
Dependencies are inferred from the claim text.