The dollar hovered near a four-week high on Wednesday, supported by higher U.S. yields after the United States eased trade restrictions on Chinese telecommunications equipment maker Huawei Technologies.
Against a basket of key rival currencies, the dollar was last a shade lower at 98.014, having brushed a 3-1/2-week high of 98.134 overnight. The index has risen 1.9% so far this year.
The U.S. Commerce Department blocked Huawei Technologies Co Ltd from buying U.S. goods last week, leading several companies to suspend business with the world's largest telecoms equipment maker.
Against the yen, the dollar was largely steady at 110.49 yen, having hit a two-week high of 110.675 during the previous session. The greenback has recovered 1.4% from a three-month trough of 109.02 yen touched on Monday last week.
Japan's exports fell 2.4% in April from a year earlier, down for a fifth straight month, in a sign of weakness in external demand, finance ministry data showed, compared with a 1.8% decrease expected by economists in a Reuters poll.
The 10-year U.S. Treasury note yield was last largely unchanged at 2.423% after moving further off a seven-week low of 2.354% brushed on Thursday during the previous session.
The euro was steady at $1.1162.