US 11,929,815 B2
Receiver system configured to alternate between different beamforming types
Kalle Spoof, Helsinki (FI); Marko Kosunen, Helsinki (FI); Jussi Ryynanen, Espoo (FI); Miikka Tenhunen, Espoo (FI); Vishnu Unnikrishnan, Espoo (FI); and Kari Stadius, Helsinki (FI)
Assigned to SAAB AB, Linköping (SE)
Appl. No. 18/253,161
Filed by SAAB AB, Linköping (SE)
PCT Filed Nov. 19, 2021, PCT No. PCT/SE2021/051158
§ 371(c)(1), (2) Date May 16, 2023,
PCT Pub. No. WO2022/108513, PCT Pub. Date May 27, 2022.
Claims priority of application No. 20206192 (FI), filed on Nov. 23, 2020.
Prior Publication US 2023/0396310 A1, Dec. 7, 2023
Int. Cl. H04B 7/08 (2006.01); H04B 7/0413 (2017.01)
CPC H04B 7/0868 (2013.01) [H04B 7/0413 (2013.01); H04B 7/0882 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A radio-frequency (RF) receiver system (1) arranged to provide beamforming of incoming radio-frequency signals, the RF receiver system (1) comprising:
at least one digital signal processor (DSP) (2);
a plurality of analogue-to-digital converters (ADCs) (3), each connected to the at least one (DSP) (2);
a plurality of sample-and-hold (S&H), circuit groups (4), each comprising a plurality of sample-and-hold circuits (5) additively connected to a respective ADC (3); and
a plurality of receiving antenna connections (6) each connected to a respective S&H circuit (5) in each group (4) at one end and each antenna connection (6) connected to a respective antenna (7);
wherein the RF receiver system (1) is configured to selectively alternate between a plurality of beamforming functionalities, wherein the RF receiver system (1) is arranged to time-interleave the ADCs (3) and control specific S&H circuits (5) in each S&H group (4) by at least one of time-interleave or disable specific S&H circuits (5) depending on a set beamforming functionality.