Dynamic range extension of radio frequency signals using phasing of two or more IQ channels

• Main Authors: Deshmukh, Nikhil Ashok, Loehning, Michael
• Format: Patent
• Language: English
• Published: 13.02.2024
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION

Dynamic range of radio frequency transmitters and receivers may be improved via a multiple-channel phasor configuration in which channels are phased in a manner that distributes the local oscillator phases over π/2 radians. A multiple-channel phasing receiver may include a power splitter to split an input signal into multiple signals, and may further include multiple single-channel receivers providing intermediate signals. Each single-channel receiver may have an input that receives a respective signal of the multiple signals, and may further have an output to provide a respective intermediate signal as a function of the respective input signal, a total gain applied to the respective input signal, a signal frequency of the local oscillator signal, and a respective phase of the local oscillator signal. The multiple-channel receiver may include a digital signal processor that combines the plurality of intermediate signals into a single output signal. A multiple-channel transmitter/transceiver may be similarly implemented.