Waveguide filters
A waveguide filter is useful for some frequency range passing (the pass-band filter), or – rejecting (the stop-band filter), or limiting from the cut-off frequency value (high-pass or low-pass filter).
Filters

Ku-band bandpass filter
This waveguide bandpass filter is used in Ku band for the out of band signal emissions reducing, the signal bandwidth limitation and the transmitter noise-band reducing
