It is a waveguide of suitable length having octal base on the broad wall of the waveguide for mounting the klystron tube. It consists of movable short at one end of the waveguide to direct the microwave energy generated by the klystron tube. A small hole located exactly at the center of the broad wall of the waveguide is used to put the coupling pin of the tube as the electric field vector of EM energy is maximum at the center only. The maximum power transfer can be achieved by tuning of the movable plunger.
Model |
Band |
Freq. Range (GHz) | Waveguide |
---|---|---|---|
SKM-139 | S | 2.60-3.95 | WR-284 |
CKM | C | 3.95-5.85 | WR-229 |
JKM-139 | J | 5.85-8.20 | WR-137 |
XKM-139 | X | 8.20-12.40 | WR-90 |
KUKM-139 | Ku | 12.40-18.00 | WR-62 |