FOUR-PHASE OUTPUT 2(2N+1) FREQUENCY DIVISION PHASE SHIFTER

摘要

PROBLEM TO BE SOLVED: To provide a four-phase output 2(2n+1) frequency division phase shifter.;SOLUTION: A four-phase output 2(2n+1) frequency division phase shifter of the present invention comprises a first frequency divider (1) and a second frequency divider (2). The first frequency divider (1) inputs an input signal (IN) having a frequency {freq-2(2n+1)} of 2(2n+1) ((n) is an integer of ≥1) multiple, generates a double frequency {freq-2} performing (2n+1) frequency division on the frequency {freq-2(2n+1)} of 2(2n+1) multiple, and outputs a signal having the double frequency {freq-2}. The second frequency divider (2) generates a frequency {freq-1} by performing 2 frequency division on the double frequency {freq-2} that the signal has, and outputs four-phase output signals {OUT-0}, {OUT-90}, {OUT-180}, {OUT-270} having the frequency {freq-1} and shifting their phases at 90°, respectively.;COPYRIGHT: (C)2008,JPO&INPIT