Active coupler
AssigneeAnalog Devices, Inc.
InventorRobert J. McMorrow
Life of this patent
Estimating the term…
Abstract
A coupler circuit for sampling an output power of a signal from an output power source has at least one first sampling element for sampling a first portion of the signal and at least one second sampling element for sampling a second portion of the signal. The first sampling element and the second sampling element are separated by an output matching network defined by a set of S-parameters. A processor coupled to the at least one first and second sampling elements determines the output power based on at least the first portion of the signal and the second portion of the signal. A detector may be coupled to the processor to measure whether the first and second portion of the signal or the output power determined by the processor.
Claims26
A coupler circuit for sampling an output power of a signal from an output power source that delivers the signal to a load, where an output matching network is coupled between the output power source and the load, the coupler circuit comprising:
- at least one first sampling element coupled to an output of the output power source for sampling a first portion of the signal;
- at least one second sampling element coupled to an output of the output matching network for sampling an second portion of the signal;
- and
- a processor coupled to the at least one first and second sampling elements for determining the output power based at least on the first portion of the signal and the second portion of the signal.
A system for measuring the output power of a signal provided from an output power source that delivers the signal to a load, the system comprising:
- a. an output matching network coupled between the output power source and the load;
- b. a coupler in signal communication with the output matching network comprising
- (1) at least one first sampling element coupled to an output of the output power source for sampling a first portion of the signal;
- (2) at least one second sampling element coupled to an output of the output matching network for sampling an second portion of the signal;
- c. a detector circuit coupled to the at least one first sampling element and the at least one second sampling element for measuring the first portion of the signal and the second portion of the signal;
- and
- d. a processor coupled to the detector circuit for determining the output power based at least on the first portion of the signal and the second portion of the signal.
Dependencies are inferred from the claim text.