Low Pass Filter
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Low Pass Filter
RFME designs and manufactures medium power as well as low power low pass filters from 0.001 GHz to 10GHz. These filters are designed for use in any power application ranging from 100 Watts or less which requires harmonic band rejection of up to 4th harmonic of the fundamental (cut-off) frequency (Fc).
The table below shows various lowpass filter models and its cut off frequencies many of which may be customized according to your specifications(Package modifications are also available). Surface mount versions are often available for the SMA packages.
| Low Pass Filters | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Model No. |
Passband Frequency |
Operating Frequency |
Stopband Frequency |
Passband Insertion Loss [dB] |
Passband Return Loss [dB] |
Minimum Stopband Rejection [dB] |
Technology Used |
Input Power (W) |
|
DC - 50 MHz |
31MHz - 50MHz |
62MHz |
- 3 dB |
-14 dB |
-20 |
Lumped LC |
0.5 |
|
|
DC - 68 MHz |
41MHz - 68MHz |
82MHz |
-3 dB |
-15 dB |
-25 |
Lumped LC |
0.5 |
|
|
DC - 130 MHz |
85MHz - 130MHz |
160 MH |
-3 dB |
-15 dB |
-30 |
Lumped LC |
0.5 |
|
|
DC - 240 MHz |
130MHz - 240MHz |
240MHz |
-3 dB |
-15 dB |
-20 |
Lumped LC |
0.5 |
|
|
DC - 380 MHz |
220MHz - 380MHz |
440MHz |
-3 dB |
-15 dB |
-30 |
Lumped LC |
0.5 |
|
|
DC - 450 MHz |
370MHz - 450MHz |
740MHz |
-3 dB |
-15 dB |
-20 |
Lumped LC |
0.5 |
|
|
DC - 660 MHz |
366MHz - 660MHz |
730MHz |
-3 dB |
-14 dB |
-30 |
Lumped LC |
0.5 |
|
|
DC - 800 MHz |
570MHz - 800MHz |
1140MHz |
-3dB |
-14 dB |
-20 |
Lumped LC |
0.5 |
|
|
DC - 970 MHz |
600MHz - 970MHz |
1200MHz |
-1.5 dB |
-15 dB |
-20 |
Lumped LC
|
0.5 |
|
|
DC – 180MHz |
180MHz |
- |
- 3dB |
-13 dB |
- |
Lumped LC |
0.5 |
|
|
LOW PASS FILTERS
|
||||||||
|---|---|---|---|---|---|---|---|---|
|
Model No.
|
Passband Frequency
|
Operating Frequency
|
Stopband Frequency
|
Passband Insertion Loss [dB]
|
Passband Return Loss [dB]
|
Minimum Stopband Rejection [dB]
|
Technology Used
|
Input Power (W)
|
|
DC - 50 MHz
|
31MHz - 50MHz
|
62MHz
|
- 3 dB
|
-14 dB
|
-20
|
Lumped LC
|
0.5
|
|
|
DC - 68 MHz
|
41MHz - 68MHz
|
82MHz
|
-3 dB
|
-15 dB
|
-25
|
Lumped LC
|
0.5
|
|
|
DC - 130 MHz
|
85MHz - 130MHz
|
160 MH
|
-3 dB
|
-15 dB
|
-30
|
Lumped LC
|
0.5
|
|
|
DC - 240 MHz
|
130MHz - 240MHz
|
240MHz
|
-3 dB
|
-15 dB
|
-20
|
Lumped LC
|
0.5
|
|
|
DC - 380 MHz
|
220MHz - 380MHz
|
440MHz
|
-3 dB
|
-15 dB
|
-30
|
Lumped LC
|
0.5
|
|
|
DC - 450 MHz
|
370MHz - 450MHz
|
740MHz
|
-3 dB
|
-15 dB
|
-20
|
Lumped LC
|
0.5
|
|
|
DC - 660 MHz
|
366MHz - 660MHz
|
730MHz
|
-3 dB
|
-14 dB
|
-30
|
Lumped LC
|
0.5
|
|
|
DC - 800 MHz
|
570MHz - 800MHz
|
1140MHz
|
-3dB
|
-14 dB
|
-20
|
Lumped LC
|
0.5
|
|
|
DC - 970 MHz
|
600MHz - 970MHz
|
1200MHz
|
-1.5 dB
|
-15 dB
|
-20
|
Lumped LC
|
0.5
|
|
|
DC – 180MHz
|
180MHz
|
-
|
- 3dB
|
-13 dB
|
-
|
Lumped LC
|
0.5
|
|