Taylor Crabb and Andy Benesh of the United States were defeated in two straight sets (21–15, 21–17).
The Americans were never able to threaten the Swedish Olympic and World Cup gold medalists, who controlled the semifinal throughout.
They now await the final against either Brazilian or French opposition.
Home team Evandro Oliveira and Arthur Lanci are favorites to defeat the French team Remi Bassereau and Calvin Aye in the other semi-final.
The final will be played at 9:00 PM on Sunday.
World Cup runners-up Jacob Hölting Nilsson and Elmer Andersson advanced to the round of 16, where they will face the Austrian pair Philipp Waller and Moritz Pristauz-Telsnigg.
