US 12,284,014 B2
Beamformer and method of operation of a beamformer for MIMO antenna system
Paul Mattheijssen, Boxtel (NL); Mustafa Acar, Eindhoven (NL); and Lucas Maria Florentinus De Maaijer, Venlo (NL)
Assigned to NXP B.V., Eindhoven (NL)
Filed by NXP B.V., Eindhoven (NL)
Filed on Apr. 25, 2023, as Appl. No. 18/306,391.
Claims priority of application No. 22176157 (EP), filed on May 30, 2022.
Prior Publication US 2023/0387985 A1, Nov. 30, 2023
Int. Cl. H04B 7/06 (2006.01); H04B 7/0426 (2017.01)
CPC H04B 7/0617 (2013.01) [H04B 7/0426 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A beamformer device for a multiple-input, multiple-output (MIMO) antenna system, the beamformer device comprising:
a beamformer channel including a transmitter amplifier, a radio frequency (RF) terminal, and an antenna connection terminal, wherein the transmitter amplifier is configured to receive an input RF signal from the RF terminal, and to produce a transmitted RF signal at the antenna connection terminal;
a power detector having a power detector output, wherein the power detector is configured to produce a replica of the transmitted RF signal at the power detector output;
a digital control interface including a serial data input and a serial data output, wherein the digital control interface is configured to produce a digital output at the serial data output; and
a selection circuit having a first terminal coupled to the power detector output, a second terminal coupled to the serial data output, and a third terminal coupled to a beamformer monitor output, wherein the selection circuit is configured to either couple the serial data output or the power detector output at any given time to the beamformer monitor output.