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BAND PASS FILTERS, ABSORPTIVE 70A
SERIES
Data Sheet No: B152 (pdf
format 83K)
- HIGH POWER
- LOW LOSS
- LOW PASS AND STOP BAND REFLECTION
DESCRIPTION
MEC's 70A series of Harmonic Absorptive filters are low pass filters,
which absorb the rejected power instead of reflecting it back to the transmitter, thereby
protecting TWT’s from harmonic and other harmful reflections. They feature high power
handling capability, low pass band loss, low VSWR over the pass and stop bands, sharp
cutoff skirt and high attenuation.
MEC offers a complete line of Harmonic Absorptive filters, which cover
full TWTA bands of either 1-18 GHz or 2-18 GHz. Refer to the tables below for suggested
model groupings to cover these bands. The lower part of the band is covered with coaxial
models (C70A Series) and the upper part of the band is usually in waveguide (70A Series
for rectangular waveguide and R70A Series for double ridge waveguide).
| Option 1 |
|
Option 2 |
| BAND |
PASS BAND FREQUENCY (GHz) |
STOP BAND FREQUENCY
(GHz) |
INTERFACE |
|
BAND |
PASS BAND FREQUENCY (GHz) |
STOP BAND FREQUENCY
(GHz) |
INTERFACE |
1 |
1.00-1.78 |
2.00-3.56 |
Type N |
|
1 |
1.00-1.65 |
2.00-3.30 |
Type N |
2 |
1.78-3.20 |
3.56-6.40 |
Type N |
|
2 |
1.65-2.70 |
3.30-5.40 |
Type N |
3 |
3.20-5.70 |
6.40-11.40 |
Type N |
|
3 |
2.70-4.47 |
5.40-8.94 |
Type N |
4 |
5.70-10.10 |
11.40-20.20 |
WRD475 |
|
4 |
4.47-7.50 |
8.94-15.20 |
Type N |
5 |
10.10-18.00 |
20.20-36.00 |
WRD750 |
|
5 |
7.50-11.60 |
15.00-23.20 |
WRD750 |
| |
|
|
|
|
6 |
11.60-18.00 |
23.20-36.00 |
WRD750 |
ORDERING INFORMATION
Refer to the following pages for model number listings and specifications.
The table below is a representative sample of MEC’s available
designs of Coax Harmonic Absorptive Filters. Contact MEC with your specific requirements.
Our engineering staff will be glad to discuss your needs.
| Model Number |
Cutoff Frequency (GHz) |
Pass Band I. L. Max (dB) |
Pass Band VSWR Max |
Stop Band Frequency
(GHz) |
Stop Band Attenuation
Min (dB) |
Stop Band VSWR Max |
A
(inches) |
B
(inches) |
C
(inches) |
C70A-337 |
0.9 |
1.0 |
1.5:1 |
1.0-1.776 |
50 |
3.0:1 |
22.1 |
21.3 |
5.2 |
C70-247 |
1.5 |
0.6 |
1.5:1 |
3-4.5 &4.51-10 |
60 & 30 |
2.5:1 |
14.0 |
4.7 |
1.67 |
C70A-409 |
1.5 |
0.3 |
1.2:1 |
2.2-4.0 |
25 |
2.5:1 |
6.0 |
6.0 |
4.0 |
C70A-413 |
1.6 |
0.3 |
1.5:1 |
1.9-4.0 |
25 |
2.0:1 |
115 |
13.6 |
3.6 |
C70A-429 |
1.6 |
0.2 |
1.13:1 |
2-3.2 &3.21-18 |
25 |
2 :1 & 3:1 |
9.5 |
11.5 |
3.6 |
C70A-435 |
1.7 |
0.3 |
1.17:1 |
2.0-7.0 |
30 |
2.0:1 |
9.5 |
11.5 |
3.6 |
C70A-463 |
2.0 |
0.3 |
1.3:1 |
2.35-8.0 |
40 |
2.0:1 |
9.5 |
11.5 |
3.1 |
C70A-436 |
2.0 |
0.2 |
1.2:1 |
2.5-8.0 |
30 |
2.0:1 |
9.5 |
11.5 |
3.1 |
C70A-471 |
2.5 |
0.3 |
1.3:1 |
3.2-10.0 |
35 |
2.0:1 |
10.0 |
6.8 |
2.3 |
C70A-428 |
2.7 |
0.4 |
1.35:1 |
3.2-8.4 |
35 |
2.5:1 |
10.0 |
6.8 |
2.3 |
C70A-447 |
2.8 |
0.4 |
1.5:1 |
3.2-6.0 |
25 |
2.0:1 |
10.0 |
9.0 |
2.5 |
C70A-417 |
3.2 |
0.5 |
1.4:1 |
5.6-6.4 |
40 |
2.5:1 |
7.2 |
4.7 |
1.8 |
C70A-437 |
3.5 |
0.3 |
1.2:1 |
3.9-9.0 |
30 |
2.0:1 |
7.2 |
4.7 |
1.9 |
C70A-452 |
3.5 |
0.2 |
1.5:1 |
6.0-7.0 |
30 |
2.0:1 |
7.2 |
4.7 |
1.7 |
C70A-411 |
3.6 |
0.3 |
1.3:1 |
4.3-7.5 |
25 |
2.5:1 |
5.0 |
5.0 |
3.0 |
C70A-433 |
4.0 |
0.35 |
1.2:1 |
4.5-10.0 |
30 |
1.5:1 |
7.2 |
4.7 |
1.7 |
C70A-423 |
4.0 |
0.4 |
1.5:1 |
4.6-12.0 |
30 |
2.5:1 |
7.2 |
4.7 |
1.6 |
C70A-438 |
4.0 |
0.3 |
1.2:1 |
4.5-10.0 |
30 |
2.0:1 |
7.2 |
4.7 |
1.7 |
C70A-414 |
4.8 |
0.4 |
1.5:1 |
5.6-8.0 |
25 |
2.0:1 |
5.6 |
4.7 |
1.4 |
C70A-482 |
4.8 |
0.25 |
1.3:1 |
5.6-10.0 |
33 |
1.6:1 |
7.2 |
4.7 |
1.4 |
C70A-472 |
4.8 |
0.3 |
1.3:1 |
6.0-18.0 |
38 |
2.5:1 |
7.2 |
4.7 |
1.4 |
C70A-332 |
6.0 |
0.3 |
1.5:1 |
7-12 |
50 |
1.5:1 |
8.2 |
4.7 |
1.2 |
C70A-439 |
7.0 |
0.2 |
1.2:1 |
7.7-14.0 |
35 |
2.0:1 |
7.2 |
4.7 |
1.1 |
C70A-434 |
7.5 |
0.25 |
1.35:1 |
9.6-18 |
35 |
2.0:1 |
7.2 |
4.7 |
1.0 |
C70A-424 |
8.0 |
0.4 |
1.5:1 |
9.4-16.0 |
30 |
2.0:1 |
7.2 |
3.7 |
0.8 |
C70A-440 |
8.0 |
0.3 |
1.2:1 |
8.8-14.0 |
30 |
2.0:1 |
7.2 |
4.7 |
1.0 |
C70A-474 |
8.0 |
0.35 |
1.2:1 |
12.4-18 |
45 |
2.0:1 |
7.2 |
4.7 |
1.0 |
C70A-449 |
11.0 |
0.75 |
1.5:1 |
13.0-22.0 |
45 |
2.5:1 |
8.4 |
3.9 |
0.8 |
C70A-129 |
12.4 |
0.45 |
1.35:1 |
16-24.8 |
35 |
2.5:1 |
3.5 |
2.5 |
1.2 |
ORDERING INFORMATION
- Choose from models listed above, or specify pass band
and stop band frequency, IL, VSWR, attenuation, power connectors and any other
requirements.
(Data Sheet B152) Data subject to change without notice
[BAck to Filters] Any
custom requirements? Please fill out a form.
1551 Osgood Street, No. Andover, MA. 01845 TEL: 978-685-2776,
FAX: 978-975-4363 email:sales@microwaveeng.com
Updated 08/01/02
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