The U.S. dollar will likely test its upper limit against the yen this week amid lingering doubts over the health of the Japanese economy.

Dealers said the dollar will attempt to break the 110 yen line this week, with the 107 yen level likely to be its lower limit.

In Tokyo, the dollar climbed gradually last week, from the week's low of 107.29 yen hit last Monday, to the week's high of 108.65 yen Friday.