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Broadband agile filter - RF Cafe Forums

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 Post subject: Broadband agile filter
Posted: Thu Nov 02, 2006 4:46 am 
 
Lieutenant

Joined: Thu Nov 02, 2006 4:40 am
Posts: 1
I need to find a broaband agile filter. (2 to 18 GHz, BW = 200 MHZ)
A yig filter is not a solution because the BW stills not the same on each frequency.
A solution?....

Thanks!


 
   
 
 Post subject:
Posted: Thu Nov 02, 2006 7:52 am 
 
General
User avatar

Joined: Fri Feb 17, 2006 12:07 pm
Posts: 312
Location: London UK
It sounds like a job for down-convert>filter>up-convert with a tracking local oscillator.

It would comprise a 3 to 19GHz YIG oscillator, down-conversion mixer, 200MHz Bandpass filter and low-gain IF amp at 1GHz, and an up-conversion mixer, then a final amplifier to make up losses.

The bricks are available, but I am not sure if any company markets the full 9 yards as an item.






Posted  11/12/2012

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