Phase shifter chip radio frequency self-test
AssigneeGoogle Inc.
InventorsArnold Feldman, Benjamin Joseph Mossawir
Life of this patent
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Abstract
A method for operating a phase shifter chip RF self-test. The method includes outputting, by control hardware, a first signal from a phased locked loop to a pre-amplifier and an input peak detector, outputting, by the control hardware, a second signal from the pre-amplifier to a device under test, selecting, by the control hardware, a target level, and adjusting, by the control hardware, a pre-amplifier gain of the pre-amplifier to cause the input peak detector value to approximately match the target level. The input peak detector is configured to output an input peak detector value based on the first signal.
Claims14
A method comprising:
- outputting, by control hardware, a first signal from a phased locked loop to a pre-amplifier and an input peak detector, wherein the input peak detector is configured to output an input peak detector value based on the first signal;
- outputting, by the control hardware, a second signal from the pre-amplifier to a device under test;
- selecting, by the control hardware, a target level;
- and
- adjusting, by the control hardware, a pre-amplifier gain of the pre-amplifier to target the input peak detector value to match the selected target level.
A system comprising:
- a phased locked loop;
- a pre-amplifier in communication with the phased locked loop;
- an input peak detector in communication with the pre-amplifier;
- and
- control hardware in communication with the phased lock loop, the pre-amplifier, and the input peak detector, the control hardware configured to:
- output a first signal from the phased locked loop to the pre-amplifier and the input peak detector, wherein the input peak detector is configured to output an input peak detector value based on the first signal;
- output a second signal from the pre-amplifier to a device under test;
- select a target level;
- and
- adjust the pre-amplifier gain of the pre-amplifier to target the input peak detector value to match the selected target level.
Dependencies are inferred from the claim text.