US 12,218,436 B2
Mitigating beam squint in multi-beam forming networks
Kejia Ding, Kanata (CA); Sadegh Farzaneh, Kanata (CA); and Minya Gavrilovic, Kanata (CA)
Assigned to GALTRONICS USA, INC., Tempe, AZ (US)
Filed by GALTRONICS USA, INC., Tempe, AZ (US)
Filed on Jul. 31, 2024, as Appl. No. 18/791,103.
Application 18/791,103 is a continuation of application No. 17/769,625, previously published as PCT/US2020/035186, filed on May 29, 2020.
Claims priority of provisional application 62/923,352, filed on Oct. 18, 2019.
Prior Publication US 2024/0396213 A1, Nov. 28, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01Q 3/40 (2006.01); H01Q 25/00 (2006.01)
CPC H01Q 3/40 (2013.01) [H01Q 25/00 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An antenna system for producing multiple beams, the antenna system comprising:
a plurality of antenna elements;
a multi-beam forming network (MBFN) of circuit elements, said MBFN forming a matrix of circuit elements, said MBFN being coupled between matching loads and said plurality of antenna elements and said MBFN receiving a plurality of input beams;
wherein
said matrix of circuit elements forms rows and columns of couplers, each row of couplers comprising a plurality of row couplers coupled in series by delay lines and each column of couplers comprising a plurality of column couplers coupled in series, at least one column of couplers being between an output port and a column load; and
said antenna system is configured for use in cellular applications.