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US 2025/0096747 A1Published application
Millimeter-wave (mmw) low noise active phase shifter
AssigneeQUALCOMM Incorporated
InventorsLaya MOHAMMADI, Chirag Dipak PATEL, Chuan WANG, Bhushan Shanti ASURI
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Abstract
A phase shifter having an input matching network, a vector modulator connected to the input matching network, the vector modulator configured to alter an amplitude of signals provided by the input matching network, bias networks coupled to outputs of the vector modulator, and a combining circuit connected to the outputs of the vector modulator, the combining circuit configured to generate a first phase (θ1) signal from the outputs of the vector modulator.
Claims30
A phase shifter, comprising:
- an input matching network;
- a vector modulator connected to the input matching network, the vector modulator configured to alter an amplitude of signals provided by the input matching network;
- bias networks coupled to outputs of the vector modulator;
- and
- a combining circuit connected to the outputs of the vector modulator, the combining circuit configured to generate a first phase (θ1) signal from the outputs of the vector modulator.
2 more elements
A method for phase shifting, comprising:
- dividing an input signal into a first portion and a second portion and adjusting an amplitude of the first and second portions;
- biasing the amplitude-adjusted first portion and the amplitude-adjusted second portion;
- and
- passively combining the amplitude-adjusted first and second portions to generate a first phase (θ1) signal.
1 more element
A device, comprising:
- means for dividing an input signal into a first portion and a second portion and actively adjusting an amplitude of the first and second portions;
- means for biasing the amplitude-adjusted first portion and the amplitude-adjusted second portion;
- and
- means for passively combining the amplitude-adjusted first portion and the amplitude-adjusted second portion using a passive combiner to generate a first phase (θ1) signal.
1 more element
A phase shifter, comprising:
- an input matching network coupled to an input of the phase shifter;
- a variable gain amplifier, wherein an output of the input matching network is coupled to a gate of an amplification transistor in the variable gain amplifier;
- and
- a quadrature all pass filter (QAF) coupled to an output of the variable gain amplifier and to an output of the phase shifter.
1 more element
Dependencies are inferred from the claim text.