Harmonic-Reflective Filters
CMC Part Number 601525
| Specifications | |
| Passband Frequency | 4.4 – 5.0 GHz |
| Insertion Loss | 0.2 dB max |
| VSWR | 1.3:1 max |
| Power | 1.5 KW CW |
| Stopband Insertion Loss | 2nd Harmonic 60 dB Min 3rd Harmonic 60 dB Min 4th Harmonic 60 dB Min |
Reflective Filters
A microwave signal contains microwave energy principally at its fundamental frequency. In addition there are undesirable multiples of that same frequency called harmonics. These higher frequency “harmonics” may be removed from the fundamental by use of a mechanical device called a Waffle Iron filter. A Waffle Iron filter is reflective by design and is a corrugated, varying impedance,waveguide filter with longitudinal slots which provide attenuation to all modes containing harmonic power.
Waffle Iron units have passband fractional bandwidths of 10-20%. Stop band attenuation is typically greater than 60 dB from the second through the fourth harmonic of the fundamental frequency.
Insertion loss and VSWR in the passband are minimal providing maximum transmission of power to the antenna. Waffle Iron designs are currently available in waveguide sizes from WR650 through WR42.
NOTE: Our engineering department is standing by to assist you with your particular design requirements.
