[SI-LIST] Re: Height of the shield can

The can will exhibit resonant modes based on its dimensions in all three 
axes.  This will affect what leaks in each direction at any seams and/or 
apertures.  It will also potentially give you surprise undesirable 
coupling between elements within the can.  If you really don't want any 
surprises you can:  Design the can to be very small compared to your 
wavelengths, ie less than a quarter wave on any diagonal, rely on Q 
suppression techniques, and/or evaluate in a 3D tool like Ansoft, CST 
etc.  Scott McMorrow has 3D tools from multiple vendors and does this 
stuff all day long.

Steve.

sunil bharadwaz wrote:
> Hi ,
> I'am trying to design a shield can for an RF Transceiver module @ 5.0 Ghz .
> I'am trying to figure out the impact of the height of the shield can
> on the overall performance...
>
> Is there any specific rule of thumb @ height in terms of wavelength.
> Meaning ,the impact due to the shield height  of Lamda/4 , Lamda/2 
> etc ....
>
> Appreciate any inputs on the above topic ....
>
> regards
> Sunil.b
>
>
>
>       
> ------------------------------------------------------------------
> To unsubscribe from si-list:
> si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
>
> or to administer your membership from a web page, go to:
> http://www.freelists.org/webpage/si-list
>
> For help:
> si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
>
>
> List technical documents are available at:
>                 http://www.si-list.net
>
> List archives are viewable at:     
>               http://www.freelists.org/archives/si-list
> or at our remote archives:
>               http://groups.yahoo.com/group/si-list/messages
> Old (prior to June 6, 2001) list archives are viewable at:
>               http://www.qsl.net/wb6tpu
>   
>
>
>   


-- 
Steve Weir
Teraspeed Consulting Group LLC 
121 North River Drive 
Narragansett, RI 02882 

California office
(866) 675-4630 Business
(707) 780-1951 Fax

Main office
(401) 284-1827 Business 
(401) 284-1840 Fax 

Oregon office
(503) 430-1065 Business
(503) 430-1285 Fax

http://www.teraspeed.com
This e-mail contains proprietary and confidential intellectual property of 
Teraspeed Consulting Group LLC
------------------------------------------------------------------------------------------------------
Teraspeed(R) is the registered service mark of Teraspeed Consulting Group LLC

------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field

or to administer your membership from a web page, go to:
http://www.freelists.org/webpage/si-list

For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field


List technical documents are available at:
                http://www.si-list.net

List archives are viewable at:     
                http://www.freelists.org/archives/si-list
or at our remote archives:
                http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
                http://www.qsl.net/wb6tpu

Other related posts: