The invention provides a balance type single-end anti-phase power divider. The balance type single-end anti-phase power divider comprises a medium substrate, and two mutually coupled first
microstrip lines, two mutually coupled second
microstrip lines, two mutually coupled third
microstrip lines, a first input port, a second input port, a first output port, a second output port and a grounding
resistor which are arranged on the medium substrate, wherein the other rends of the two third microstrip lines are mutually in
electrical connection and form a third connection joint, one end of the grounding
resistor is connected with the third connection joint, and the other end of the grounding
resistor is grounded; and the first microstrip lines, the second microstrip lines and the third microstrip lines each has an electric length of pi / 2. According to the invention, power distribution of differential signals and a function of
phase reversal of an output end are realized, at the same time, the work bandwidth of the power divider, including
coupling bandwidth, isolation bandwidth and common-mode bandwidth is improved, and the dimension is reduced.