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US 12,308,869 B2Granted
Phase-reconfigurable circuits with programmable power splitting for dual-input power amplifiers
AssigneeQUALCOMM Incorporated
InventorsGuoxiang Han, Paolo Enrico De Falco, Antonino Scuderi
Life of this patent
Estimating the term…
Abstract
A phase-reconfigurable circuit with programmable power splitting for a dual-input power amplifier is provided. The circuit includes an I/Q generator to generate I and Q RF signals from an input RF signal. A first vector-sum phase-shifter processes the I and Q RF signals to produce a first RF output signal. Similarly, a second vector-sum phase-shifter processes the I and Q RF signals to produce a second RF output signal.
Claims30
A phase-reconfigurable circuit, comprising:
- a single-ended-to-differential converter configured to convert an RF input signal into a differential RF input signal;
- an I/Q generation circuit configured to convert the differential RF input signal into a differential in-phase RF signal and a differential quadrature-phase RF signal;
- a first vector-sum phase-shifter configured to process the differential in-phase RF signal and the differential quadrature-phase RF signal to produce a first differential RF signal;
- and
- a second vector-sum phase-shifter configured to process the differential in-phase RF signal and the differential quadrature-phase RF signal to produce a second differential RF signal.
2 more elements
A phase-reconfigurable circuit method, comprising:
- converting an RF input signal into a differential RF input signal;
- converting the differential RF input signal into a differential in-phase RF signal and a differential quadrature-phase RF signal;
- processing the differential in-phase RF signal and the differential quadrature-phase RF signal in a first vector-sum phase-shifter to produce a first differential RF signal;
- differential-to-single-ended converting the first differential RF signal into a first RF output signal;
- processing the differential in-phase RF signal and the differential quadrature-phase RF signal in a second vector-sum phase-shifter to produce a second differential RF signal;
- and
- differential-to-single-ended converting the second differential RF signal into a second RF output signal.
4 more elements
A dual-input amplifier, comprising:
- a first vector-sum phase-shifter configured to process a differential in-phase RF signal and a differential quadrature-phase RF signal to produce a first differential RF signal;
- a first differential-to-single-ended converter configured to convert the first differential RF signal into a first RF output signal;
- a first pre-driver amplifier configured to amplify the first RF output signal to form a first pre-driver RF signal;
- a first driver amplifier configured to amplify the first pre-driver RF signal to form a first driver RF signal;
- and
- a first power amplifier configured to amplify the first driver RF signal to form a first power amplifier RF output signal.
3 more elements
A transmitter, comprising:
- an I/Q generation circuit configured to convert an RF input signal into an in-phase RF signal and a quadrature-phase RF signal, the I/Q generation circuit comprising a polyphase filter;
- a first vector-sum phase-shifter configured to process the in-phase RF signal and the quadrature-phase RF signal to produce a first RF signal;
- a second vector-sum phase-shifter configured to process the in-phase RF signal and the quadrature-phase RF signal to produce a second RF signal;
- one or more first amplifiers configured to amplify the first RF signal to produce a first amplified RF signal;
- one or more second amplifiers configured to amplify the second RF signal to produce a second amplified RF signal;
- and
- a combiner configured to combine the first amplified RF signal and the second amplified RF signal to form a combined RF output signal.
4 more elements
Dependencies are inferred from the claim text.