FLEXIBLE FILTERS
The “LossyLine” approach to EMI suppression is new and unique.
The principle of the “LossyLine” approach is that unwanted
RF
energy travels through a “Lossy” medium surrounding the
conductor,
where it is absorbed and dissipated. The lossy medium
is flexible
with high RF attenuation and low Q. It is ideally suited for
application
as a microwave low-pass type electro-magnetic interference
filter.
The usual problems inherent in conventional reactive types of
surrpression filters, such as mismatch, reflections, grounding, and high
VSWR, are eliminated. This approach has proven ideal for the
elimination
of undesired RF interference in high frequency equipment,
such as radar, countermeasures, telecommunications, telemetry, etc.
In most applications, lengths of only two to five inches are adequate.
These short lengths of flexible, small diameter, lightweight filter, are
very easily installed and usually require no special fittings, connectors,
and housings. The net result is low-cost, small size, lightweight
suppression filter, effective to over 100GHz.
The “LossyLine” flexible
filter can be readily installed in series or in
conjunction with existing
cables or harnesses. It is available in operating
current ratings to 50
+250˚C.
| FEATURES
1. An absorptive-dissipative low-pass filter
2. High RF attenuation; over 100dB at mirowave frequencies
3. low pass-band insertion loss
4. Low pass cutoff (3dB) frequencies fro 10Mhz to 1GHz
5. Flexible:minimum bend radius of .75 inches
6. Lightweight and small size
7. Easy to install
8. Low cost
9. Necessity for costly, bulky or weighty connectors, fittings or
terminations not required in most cases
10. Length can be trimmed to exact attenuation requirements
11. Offered in a variety of voltage, current and temperature ratings
12. Current ranges from .5 to 50 amps
13. Voltages to 100KV operating
14. Temperature ranges from-67˚C to +250˚C
15. Supplied with or without shielding
16. Furnished in semi-flexible
tubes of copper, brass, steel
or other metal, if required
17. Provides suppression without shielding or grounding
18. Meets MIL-STD-220A
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