Combiner

A combiner, comprising:

• a plurality of radio frequency channels, wherein an ith radio frequency channel in the plurality of radio frequency channels comprises:
• an input port configured to receive as input a first signal corresponding to the ith radio frequency channel, wherein frequencies of signals corresponding to any two radio frequency channels in the plurality of radio frequency channels are different;
• an output port configured to output the first signal from the ith radio frequency channel;
• a resonant cavity component configured between the input port and the output port, comprising a plurality of resonant cavities connected in series;
• and
• a matching resonator connected to any one of the plurality of resonant cavities in the resonant cavity component, wherein the matching resonator is used to match each port in an entire combined frequency band;
• and
• a combination port connected to an output port of each radio frequency channel, wherein
• the ith radio frequency channel is any one of the plurality of radio frequency channels;
• and
• a consumable device is disposed between matching resonators of any two neighboring radio frequency channels in the plurality of radio frequency channels.