[Chemandy Electronics Logo]  

CHEMANDY ELECTRONICS

 

FLEXI-BOX Stub Filter

The Stub Filter is built in a FLEXI-BOX on a dedicated PCB. These units can be supplied ready built and tested from Chemandy with a filter frequency of 1.0 GHz to 2.8 GHz. The nominal attenuation is less than 1.0 dB over the 300 KHz to 3.0 GHz range, with a further 30 dB + 3 dB at the required filter frequency. The input and output connectors can be selected from N, BNC and SMA.

[Insertion Loss Graph - S21 v Frequency]

[Return Loss Graph - S11 v Frequency]

  If you wish to build the stub filter, the frequency can be tuned as required. Simply trim the stub track to the required length using a craft knife and a soldering iron.  The graph below indicates the change of centre frequency with distance from the edge of the board to end of the track. It is advisable to trim small pieces from the track and work towards the required frequency. Two boards are provided in the KIT in case you get it wrong the first time.

[Tunning guide for Stub Filter showing connectors]

    This test aid is available Ready Built (tuned to your required frequency) or in Kit form.

A selection of escutcheon drawings are available for downloading as .zip or .bmp files.

Pricing

    The price of the Stub Filter FLEXI-BOX is dependant on the connectors required. For an automatic quote or to make a purchase, select your connector requirements on the photograph below.

 

     [Photograph of Stub Filter showing connectors]     

Return to Product Index

Send email using the Contact Us page with questions about our products or comments about this web site. Return to Home page

Copyright © 2008CHEMANDY ELECTRONICS
Last modified: March 26, 2008