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Re: How to improve IMD performance of isolator - RF Cafe Forums
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gangsway
Post subject: How to improve IMD performance of isolatorPosted:
Mon Aug 31, 2009 5:21 am
Captain
Joined: Tue Nov 11,
2008 5:03 am
Posts: 11
Location: Shanghai, China
I am trying
to improve the IMD performance of an old design isolator, band is 859to
904MHz, the outline dimension is typical 1inch housing. I chose ferrite
G113 with dia=22mm and thickness=1mm. Appreciate your help?
_________________
glad to learn from you
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IR
Post subject: Re:
How to improve IMD performance of isolator Posted: Mon Sep 07, 2009
1:58 pm
Site Admin
Joined: Mon Jun 27, 2005 2:02
pm
Posts: 373
Location: Germany
Hello gangsway,
The
reasons for IMD degradation in isolators are mainly due:
1. Unsuitable
contact geometry.
2. Use of magnetic materials (e.g. Nickel) in
the conducting direction (signal flow direction).
3. Contact contamination
or oxidation.
I found this article which can be useful for you:
http://www.m2global.com/cbu/documents/I ... ropIns.pdf
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gangsway
Post subject: Re: How to improve IMD performance
of isolatorPosted: Tue Sep 22, 2009 11:21 am
Captain
Joined: Tue Nov 11, 2008 5:03 am
Posts: 11
Location: Shanghai,
China
Hi IR,
thanks for the linked articles. Appreciate more
isolator circulator design relevant article from you. many thanks.
_________________
glad to learn from you
Posted 11/12/2012
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