Harmonic-Reflective Filters
Back to Harmonic 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.
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