US 12,368,520 B2
Method for determining a nonlinearity characteristic of a receiver path and RF device
Oliver Lang, Linz (AT); Matthias Wagner, Engerwitzdorf (AT); Esmaeil Kavousi Ghafi, Linz (AT); and Andreas Schwarz, Öpping (AT)
Assigned to Infineon Technologies AG, Neubiberg (DE)
Filed by Infineon Technologies AG, Neubiberg (DE)
Filed on Oct. 10, 2023, as Appl. No. 18/483,997.
Claims priority of application No. 102022210964.3 (DE), filed on Oct. 18, 2022.
Prior Publication US 2024/0137135 A1, Apr. 25, 2024
Int. Cl. H04B 17/13 (2015.01); H04B 17/14 (2015.01); H04B 17/20 (2015.01)
CPC H04B 17/13 (2015.01) [H04B 17/14 (2015.01); H04B 17/201 (2023.05)] 20 Claims
OG exemplary drawing
 
1. A method for determining a nonlinearity characteristic of a receiver path, the method comprising:
generating a set of N×M digital samples by repeating N times:
selecting a scaling factor from a set of N scaling factors,
generating a version of a test signal, the version of the test signal corresponding to a test signal scaled by the selected scaling factor,
processing the version of the test signal in at least a part of the receiver path to generate a processed signal, and
storing M digital samples corresponding to the processed signal;
generating Fourier-transformed data using at least a portion of the set of N×M digital samples; and
determining a nonlinearity characteristic of the receiver path based on the Fourier-transformed data.