Dynamic range extension of radio frequency signals using phasing of two or more IQ channels
AssigneeNational Instruments Corporation
InventorsNikhil Ashok Deshmukh, Michael Loehning
Life of this patent
Estimating the term…
Loading patent…
AssigneeNational Instruments Corporation
InventorsNikhil Ashok Deshmukh, Michael Loehning
Estimating the term…
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.
A multiple-channel phasing receiver comprising:
A multiple-channel phasing transmitter comprising:
A transceiver comprising:
Dependencies are inferred from the claim text.