Difference between revisions of "23cms filters"

From BATC Wiki
Jump to navigation Jump to search
Line 27: Line 27:
 
*[http://www.dg0ve.de/en/filter.htm DG0VE] - German supplier of reasonably priced filters for most amateur bands
 
*[http://www.dg0ve.de/en/filter.htm DG0VE] - German supplier of reasonably priced filters for most amateur bands
  
*[http://aerial-parts.co.uk/epages/626ba059-121d-45c5-8692-ea58514eb29c.sf/en_GB/?ObjectPath=/Shops/626ba059-121d-45c5-8692-ea58514eb29c/Products/APP0003 Aerial-parts-uk] - 23cm Interdigital, Filter Response measure at the 2016 Martlesham Microwave Round table as follows:-
+
*[http://aerial-parts.co.uk/epages/626ba059-121d-45c5-8692-ea58514eb29c.sf/en_GB/?ObjectPath=/Shops/626ba059-121d-45c5-8692-ea58514eb29c/Products/APP0003 Aerial-parts-uk] - 23cm Interdigital, Filter Response measured at the 2016 Martlesham Microwave Round table as follows:-
  
 
[[File:Screen_20170408_154607.png|400px]]
 
[[File:Screen_20170408_154607.png|400px]]

Revision as of 14:26, 8 October 2017

Good 23cms filters are easy to build and there are plenty of designs available on the web:

Simple band pass filter for 23cms

A nice simple to construct design by GM8OTI http://www.marwynandjohn.org.uk/GM8OTI/proj23cmBPF/proj23cmBPF.html

Look through cavity filter for 23cms

Design published in CQ-TV 245

23cms 245.JPG

3 and 5 pole filters

Easy to make in a standard diecast box

http://www.w6pql.com/23cm_filters.htm


Manufacturers

The following suppliers sell built and tested units:

  • DG0VE - German supplier of reasonably priced filters for most amateur bands
  • Aerial-parts-uk - 23cm Interdigital, Filter Response measured at the 2016 Martlesham Microwave Round table as follows:-

Screen 20170408 154607.png