Patent ID: 8299872

Claim:
An ultra wideband dual-frequency combiner, comprising: a combination port, a first port for receiving a first frequency band, a second port for receiving a second frequency band, two coaxial resonator band pass filters, and two direct current channels, wherein the first direct current channel is connected between the first port and the combination port; the second direct current channel is connected between the second port and the combination port; one end of the first coaxial resonator band pass filter is electrically connected with the first port via a first blocking capacitor; one end of the second coaxial resonator band pass filter is electrically connected with the second port via a second blocking capacitor; the other end of the first coaxial resonator band pass filter and the second coaxial resonator band pass filter are connected to the combination port via a third blocking capacitor; and the blocking capacitors are parameter distributed capacitors.