Products > Bandpass Filter Application > Attenuation Upgrading Filter (7H4 & 7H5 & 7H6) 
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Attenuation Upgrading Filter (7H4 & 7H5 & 7H6)


High Attenuation with custom Center Frequency value (Fo=45MHz~1500MHz)

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"Attenuation Upgrading Filter support high attenuation filter at least 10dB each 

  upgrading. Type from 4pole into 5 pole, until 6 pole.  All Filter are combine with

 custom Center Frequency from 45MHz ~ 1500MHz. 50ohm and 75ohm are 

 achievable at the exact same specification. 

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  There are over 3000 models online to you for reference. All of them are the best 

  demonstration and base to modify into your specific spec value. High technical 

  but short lead time. All will be done in 14 days only.

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A. 3 type High Attenuation Series (4pole / 5pole / 6pole)

Helical Filter-7H4 Series

Helical Filter-7H5 Series

Helical Filter-7H6 Series

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B. Attenuation Upgrading Demo Specification ( from 4 pole to 6 pole)

Demo Performance- 4 pole Filter under the same Frequency  
Type

Specify 

 Center Frequency

535            MHz

 -3 dB Bandwidth Type          28             MHz
 Insertion Loss Type          3.5               dB
 Attenuation Fo-40MHz Type           43               dB
 Attenuation Fo+40MHz Type           33               dB
 Return Loss Min.            12               dB
 Impedance 50  ohm 
 Ripple < 1 dB
Demo Performance- 5 pole Filter under the same Frequency
Type

Specify 

 Center Frequency

535            MHz

 -3 dB Bandwidth Type          28             MHz
 Insertion Loss Type          3.5               dB
 Attenuation Fo-40MHz Type           60               dB
 Attenuation Fo+40MHz Type           43               dB
 Return Loss Min.            12               dB
 Impedance 50  ohm 
 Ripple < 1 dB
  

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Demo Performance- 6 pole Filter under the same Frequency
Type

Specify 

 Center Frequency

535            MHz

 -3 dB Bandwidth Type          28             MHz
 Insertion Loss Type          3.5               dB
 Attenuation Fo-40MHz Type           78               dB
 Attenuation Fo+40MHz Type           59               dB
 Return Loss Min.            12               dB
 Impedance 50  ohm 
 Ripple < 1 dB

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The Expert of the RF Band Pass Filter design& manufacturer, RF Diplexer &Duplexer, RF 50 ohm& 75ohm Filter, RF Tunable Filter


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