US 12,143,076 B2
Multi-port amplifier with baseband processing
Uzi Ram, Givat Ela (IL); and David Mansour, Tel Aviv (IL)
Assigned to NSL COMM LTD, Airport City (IL)
Filed by NSL COMM LTD, Airport City (IL)
Filed on Dec. 30, 2021, as Appl. No. 17/565,795.
Claims priority of provisional application 63/131,868, filed on Dec. 30, 2020.
Prior Publication US 2022/0209727 A1, Jun. 30, 2022
Int. Cl. H03F 1/32 (2006.01); H03F 3/21 (2006.01); H03F 3/217 (2006.01); H03F 3/38 (2006.01)
CPC H03F 3/211 (2013.01) [H03F 3/2175 (2013.01); H03F 3/38 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A multiport amplifier (MPA) implementation system, comprising:
at least one input matrix, comprising:
a plurality of complex modulators, wherein each complex modulator is configured to receive an input channel stream and perform multiplication to produce a complex product;
a summation logic block, configured to sum the complex product of the plurality of complex modulators; and
a dual Digital to Analog (DAC) converter, configured to receive summation digital complex output from the summation logic block;
a plurality of phase-synchronous RF modulators wherein each RF modulator is configured to receive a dual analog output as baseband I/Q branches from a corresponding DAC converter using a single reference oscillator for the LO input of the plurality of RF modulators; and
a plurality of amplifiers, wherein each complex amplifier is configured to receive the output of a corresponding RF Modulator for amplification to an output RF matrix.