Filters
Ridged Evanscent - mode filters
These low-loss, low power, miniature evanescent-mode band-pass
or harmonic filters could be used in applications
where filter size and weight are critical,
primarily for Ku-Band (up to 20GHz) frequencies and bellow.
The filter shown bellow is a 9-poles ridged evenescent-mode filter with direct transforming
via resonant windows. Shorter and ligher than conventional filters of this type.
| Parameter Name |
Specifications |
|
| Pass-Band |
14.46- 14.9 GHz, Tunable |
 |
| Insertion Loss |
0.16 dB |
| Return Loss |
25 dB |
| Rejection,Tunable |
50 dB at 16.226 GHz |
|
70 dB at 16.6 GHz |
|
> 60 dB at 17GHz to 45GHz |
| Multipaction Power, Watt |
N/A |
| Dimensions, mm |
50.7x38x38 |
| Weight, grams |
50 |
Waveguide Band-Pass Cavity Filters
These high-Q, high-power, low-loss filters find numerous applications
ranging from wide bandpass filters, up to 20% of the central frequency,
to ultra-narrow, less then 1% (notch) filters.
These filters are manufactured from aluminum, silver plated.
Temperature stable versions, using more stable materials are available.
Choice of customer - defined waveguide flanges (choke, cover, hermetic).
Optional coaxial interface, customer-defined or standard.
The filter shown bellow is WR62 band-pass cavity filter.
| Parameter Name |
Specifications |
|
| Pass-Band |
14.700 - 15.250 GHz |
 |
| Pass-BandInsertion Loss |
0.3 dB maximum |
| Pass-Band Return Loss |
24 dB minimum |
| Rejection |
90 dB minimum at F > 13.700 GHz |
|
70 dB minimum at 13.70 - 14.00 GHz |
|
20 dB minimum at 14.0 GHz to 14.5GHz |
|
20 dB minimum at 14.45 - 16.30 GHz |
|
70 dB minimum at 16.3 - 21.00 GHz |
| Power, peak |
2KW |
| Dimensions, mm |
92x33x33 |
| Weight, grams |
58 |
Harmonic Rejection Filters
These heavy-duty, Ultra High Power (up to 10% of appropriate waveguide power handling),
low insertion loss, sharp roll-off filters with compact size and llightweight
could be an ideal solution in many applications. Two Ku-Band harmonic regection filters
are shown bellow.
WR75 Ku-Band Second and Third Harmonic Regection Filter
| Parameter Name |
Specifications |
|
| Pass-Band |
13.75 - 14.50 GHz, Tunable |
|
| Pass-BandInsertion Loss |
<0.2 dB |
| Pass-Band Return Loss |
<25 dB |
| Rejection of: |
|
| Second Harmonic |
>80 dB from 27.5 - 29.0 GHz |
| Third Harmonic |
> 60 dB from 41.25GHz to 43.5GHz |
| Dimensions,inch |
1.5x1.5x3.5. max, flanges included |
| Interface |
WR75 |
WR75 Ku-Band Second Harmonic Filter
| Parameter Name |
Specifications |
|
| Pass-Band |
13.75 - 14.50 GHz, Tunable |
|
| Pass-BandInsertion Loss |
<0.1 dB |
| Pass-Band Return Loss |
<25 dB |
| Rejection of: |
|
| Second Harmonic |
>60 dB from 27.5 - 29.0 GHz |
| Dimensions,inch |
1.5x1.5x3.5. max, flanges included |
| Interface |
WR75 |
Filter C-Band Interference
This uniquely designed low-loss, weather-proved lightweight filter provides
suppression of marine and altimeter signal in C-Band.
Due to a very low group delay variation, this filter is ideal for digital satellite
transmission. Customer-defined pass-band as well as stop-band rejection up to 75dB is available.
The filter shown bellow is 7 poles made from aliminum, silver-plated, weather proved
and painted over for reliable outdoor applications.
| Parameter Name |
Specifications |
|
| Pass-Band |
3.85 - 4.50 GHz, Tunable |
 |
| Pass-Band Insertion Loss |
<0.15 dB maximum |
| Pass-Band Return Loss |
>20 dB minimum |
| Group Delay Variations |
1ns over any 36MHz |
| Stop-Band |
4.25 - 4.40 GHz |
| Stop Band Rejection |
54 dB minimum |
| Interface |
WR229 with CPR229G flanges |
Dimensions |
8"x5.8"x3.88" |
Weight |
3 lbs |
|
