The invention discloses a
Wilkinson power divider capable of enhancing low-frequency port isolation, which can realize a low-frequency-band
coupling suppression function by replacing an isolation
resistor element of a seven-section one-to-two traditional
Wilkinson power divider into a
capacitor-
resistor series network, thereby improving the isolation between low-frequency-band ports. The isolation degree and the
transmission coefficient of the
Wilkinson power divider with the
direct current suppression function can be visually observed through the vector network analyzer, and
passive testing is achieved. Compared with a traditional Wilkinson power divider, the seven-section Wilkinson power divider has the advantages that
coupling between output ports can be effectively restrained in a low-
frequency band, the port isolation of the low-
frequency band is improved, the low-
frequency characteristic of the power divider is improved, and the proportional bandwidth of the traditional seven-section Wilkinson power divider is improved from 13: 1 to 20: 1 under the condition that the size is not increased.