How to design an enclosure for microstrip

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cmunikat

Joined: 14 Jan 2005
Posts: 43
Helped: 1

08 Feb 2005 17:38 How to design an enclosure for microstrip

Dear all,

I have designed a microstrip passive structure which operated correctly until I put it in a metal enclosure. After that, some frequency response parameters where affected (some of them presented frequency selective fadings).

The question is how to design an enclosure so us not to disturb the circuit. Advice? paper? book?

Thanks.

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VSWR

Joined: 07 Feb 2002
Posts: 767
Helped: 72

08 Feb 2005 20:56 Re: How to design an enclosure for microstrip

You can glue a piece of ECCOSORB Cavity Resonance Absorber to the inside of the enclosure cover lid.

http://www.eccosorb.com/catalog/eccosorb/index.asp
http://www.eccosorb.com/cavity_resonance.asp

FANT

Joined: 27 Feb 2002
Posts: 367
Helped: 12
Location: Italy

08 Feb 2005 22:03 Re: How to design an enclosure for microstrip

Go to the following link:
hXXp://www.rfmicrowave.it/pdf/varie_3.pdf

At page R1 is written how to reduce the self resonance of the boxes; There is also an article on VHF communications, tomorrow I will scan it and upload.

Mandi