US 9,813,031 B2
Linear row array integrated power combiner for RF power amplifiers
Sergey Anderson, Netanya (IL); Alexander Mostov, Rishon Le Zion (IL); Eli Schwartz, Tel Aviv (IL); and Ron Pongratz, Tel Aviv (IL)
Assigned to DSP GROUP LTD., Herzliya (IL)
Filed by DSP Group LTD., Herzeliya (IL)
Filed on Nov. 26, 2015, as Appl. No. 14/952,939.
Application 14/952,939 is a continuation of application No. 14/034,143, filed on Sep. 23, 2013, granted, now 9,208,943.
Claims priority of provisional application 61/704,510, filed on Sep. 23, 2012.
Claims priority of provisional application 61/705,150, filed on Sep. 25, 2012.
Claims priority of provisional application 61/720,001, filed on Oct. 30, 2012.
Claims priority of provisional application 61/726,699, filed on Nov. 15, 2012.
Claims priority of provisional application 61/726,717, filed on Nov. 15, 2012.
Claims priority of provisional application 61/727,120, filed on Nov. 16, 2012.
Claims priority of provisional application 61/727,121, filed on Nov. 16, 2012.
Prior Publication US 2016/0149543 A1, May 26, 2016
Int. Cl. H01L 27/08 (2006.01); H03F 1/56 (2006.01); H01F 38/14 (2006.01); H03F 3/213 (2006.01); H03F 3/195 (2006.01); H02M 3/156 (2006.01); H02M 3/04 (2006.01); H01F 27/28 (2006.01); H01F 27/29 (2006.01); H01F 38/00 (2006.01); H03F 3/19 (2006.01); H03F 3/21 (2006.01); H03F 3/68 (2006.01); H03F 3/193 (2006.01); H04B 1/44 (2006.01); H01F 19/04 (2006.01); H03F 1/02 (2006.01); H03F 3/45 (2006.01); H01L 23/522 (2006.01); H01L 23/64 (2006.01); H01L 23/66 (2006.01); H02M 1/00 (2006.01)
CPC H03F 1/565 (2013.01) [H01F 19/04 (2013.01); H01F 27/2804 (2013.01); H01F 27/29 (2013.01); H01F 38/00 (2013.01); H01F 38/14 (2013.01); H01L 23/5227 (2013.01); H01L 23/645 (2013.01); H01L 23/66 (2013.01); H02M 3/04 (2013.01); H02M 3/1563 (2013.01); H03F 1/0227 (2013.01); H03F 1/0261 (2013.01); H03F 3/19 (2013.01); H03F 3/193 (2013.01); H03F 3/195 (2013.01); H03F 3/21 (2013.01); H03F 3/211 (2013.01); H03F 3/213 (2013.01); H03F 3/45179 (2013.01); H03F 3/68 (2013.01); H04B 1/44 (2013.01); H01L 2223/6655 (2013.01); H01L 2223/6672 (2013.01); H01L 2924/0002 (2013.01); H02M 2001/0012 (2013.01); H03F 2200/102 (2013.01); H03F 2200/105 (2013.01); H03F 2200/387 (2013.01); H03F 2200/451 (2013.01); H03F 2200/534 (2013.01); H03F 2200/537 (2013.01); H03F 2200/541 (2013.01); Y02B 60/50 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An integrated circuit transformer, comprising:
a semiconductor substrate for supporting a plurality of layers of an integrated circuit;
outer primary windings on the semiconductor substrate and configured in a linear array pattern;
pairs of input terminals on the semiconductor substrate and corresponding to the outer primary windings;
inner primary windings on the semiconductor substrate; and
secondary windings on the semiconductor substrate;
wherein the outer primary windings comprise:
(a) a first outer primary winding of the outer primary windings that is positioned at a first end of the linear array pattern;
(b) a last outer primary winding of the outer primary windings that is positioned at a second end of the linear array pattern opposite to the first end; and
(c) intermediate outer primary windings of the outer primary windings that are positioned between the first outer primary winding and the last outer primary winding;
wherein each outer primary winding of the outer primary windings is electrically coupled, at a respective one of the pairs of input terminals, to a respective one of the inner primary windings, and wherein each outer primary winding surrounds an entirety of the respective one of the inner primary windings;
wherein the secondary windings are spaced apart from each other, wherein each secondary winding is electrically coupled to a neighboring one of the secondary windings, and wherein each secondary winding surrounds a respective one of the inner primary windings and is surrounded by a respective one of the outer primary windings; and
wherein an inductance of each one of the intermediate outer primary windings exceeds an inductance of each one of the first outer primary winding and the last outer primary winding.