Filtering power divider with high isolation

The invention belongs to the technical field of microwave passive devices, and particularly relates to a high-isolation filtering power divider, which comprises an input port, a first output port and a second output port, and is characterized in that one end of the input port is connected with two first microstrip lines, the two first microstrip lines are of zigzag structures, the zigzag positions are sequentially divided into L1, L2, L3 and L4, and the other end of the input port is connected with the second output port; one end of each first microstrip line is connected to one end of the input port, the other end of each first microstrip line is connected with a second microstrip line, one end of each second microstrip line is provided with a filtering channel, and the other end of each second microstrip line is connected to the other end of the corresponding first microstrip line. The filtering channel comprises first resonators coupled to one end of the second microstrip line, and one end of each of the t