Accessories:1090MHz 3 Pole Filter (Type 2): Difference between revisions

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[[File:Filter1.jpg|500px|thumb|1090MHz 3 Pole Filter Type 2<br \>(both ports SMA female)]]
[[File:3poleType2 narrow.jpg|500px|thumb|Passband measured on a R&S FSEA with tracking generator<br \>Upper: wideband showing 10dB bandwidth/div<br \>Lower: narrow band, high resolution, showing 3dB bandwidth}]]
This filter is a new development. There are three major changes in comparison to the filter described in [[Accessories:External Filters|External Filters]]
This filter is a new development. There are three major changes in comparison to the filter described in [[Accessories:External Filters|External Filters]]


* The filter's passband is smaller than the previous 3 pole filter
* The filter's passband is smaller than the previous 3 pole filter


* It has a massive DC short on both, the input and the output for static electricity and lightening protection
* It has a massive DC short on the input and the output protecting the connected devices from static electricity and lightening (*1)


* The size is about half of the 3 pole filter of the first generation
* The size is about half of the 3 pole filter of the first generation
{| class="wikitable"
|[[File:Filter1.jpg|500px|thumb|1090MHz 3 Pole Filter Type 2<br \>(both ports SMA female)]]
|[[File:3poleType2 narrow.jpg|thumb|500px|Passband measured on a R&S FSEA with tracking generator<br >Upper: wideband<br \>Lower: narrow band, high resolution]]
|}


* Technical data:
* Technical data:
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Note that due to the connector options there are small predrills visible on the optional connector locations.
Note that due to the connector options there are small predrills visible on the optional connector locations.
(*1) Not guaranteed a 100% protection, as there are other destructive ways.

Latest revision as of 06:25, 22 November 2013

1090MHz 3 Pole Filter Type 2
(both ports SMA female)
Passband measured on a R&S FSEA with tracking generator
Upper: wideband showing 10dB bandwidth/div
Lower: narrow band, high resolution, showing 3dB bandwidth}

This filter is a new development. There are three major changes in comparison to the filter described in External Filters

  • The filter's passband is smaller than the previous 3 pole filter
  • It has a massive DC short on the input and the output protecting the connected devices from static electricity and lightening (*1)
  • The size is about half of the 3 pole filter of the first generation
  • Technical data:
    • passband attenuation: 0.5 dB
    • -3 dB bandwidth: better than 9 MHz
  • Options
    • Standard connectors are two SMA female connectors
    • The filter can made with N-female, N-male or BNC-female connectors each separately for both ends.
    • Both connectors can be placed on the same side
    • We can attach a massive M6 or M8 bolt on the side wall for a grounding strip
  • Dimensions
    • Length approximately 112 mm
    • Width approximately 30 mm
    • Height approximately 70 mm plus length of connectors
    • Weight approximately 0,275 kg (SMA female connectors)


Note that due to the connector options there are small predrills visible on the optional connector locations.

(*1) Not guaranteed a 100% protection, as there are other destructive ways.