US 11,750,161 B2
Microwave and radio frequency (RF) power electronics system having power combiner circuit
Ramon A. Beltran, San Diego, CA (US); Feiyu Wang, San Gabriel, CA (US); and Gregorio Villagrana, Norwalk, CA (US)
Assigned to OPHIR, INC., Los Angeles, CA (US)
Filed by OPHIR RF, INC., Los Angeles, CA (US)
Filed on May 24, 2021, as Appl. No. 17/328,475.
Application 17/328,475 is a continuation of application No. 16/531,058, filed on Aug. 3, 2019, granted, now 11,018,641.
Prior Publication US 2021/0281230 A1, Sep. 9, 2021
Int. Cl. H03F 3/60 (2006.01); H03F 3/21 (2006.01); H03H 7/46 (2006.01); H01P 5/10 (2006.01); H03H 7/38 (2006.01); H01P 3/06 (2006.01)
CPC H03F 3/60 (2013.01) [H01P 3/06 (2013.01); H01P 5/10 (2013.01); H03F 3/21 (2013.01); H03H 7/38 (2013.01); H03H 7/463 (2013.01)] 32 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a plurality of power amplifiers;
a power combiner circuit, comprising:
a plurality of input ports, each input port receiving an input signal from a power amplifier among the plurality of power amplifiers;
an impedance matching network topology configured between the plurality of input ports and an output port, including
a plurality of impedance matching sections between each input port and the output port, plurality of impedance matching sections including a coupling element configured between each input port and a receiving node in a plurality of cascading receiving nodes, a plurality of internodal matching sections between receiving nodes in the plurality of cascading receiving nodes, and an output matching section coupled between the output port and a last receiving node in the plurality of cascading receiving nodes,
the impedance matching network topology having a simultaneously-matched impedance condition between the input ports and the output port, achieved by a) calculating a current from each input port and seen at each receiving node, and b) calculating an impedance of each coupling element, each internodal matching section, and the output matching section for a desired bandwidth for a specific broadband frequency response, so that a load impedance at the output port is equal to an impedance seen at each input port; and
a phase shifting component configured to adjust a difference in signal phase so that the input signal seen at each receiving node has the same signal phase; and
a power electronics system coupled to the output port and configured to operate at the simultaneously-matched impedance condition for the desired bandwidth.