On 03:46 PM 26/06/2001 -0400, Brian Guralnick said:
>----- Original Message -----
>From: "Abd ul-Rahman Lomax" <[EMAIL PROTECTED]>
>To: "Protel EDA Forum" <[EMAIL PROTECTED]>
>Sent: Tuesday, June 26, 2001 1:55 PM
>Subject: Re: [PEDA] Ground Planes Connection
>|
>| To connect at DC or low frequencies while isolating RF, an inductor would
>| be used.
>|
>
>It's under these circumstances where I've sucessfully used printed inductors.
>
>_____________
>Brian Guralnick
Though I would hazard a guess that you are operating at higher freqs than
the original poster. They mentioned FM, assuming normal FM bands, I would
assume printed inductors get unreasonably large, and discrete have
reasonable size, Q, SRF etc at the 88-108 MHz band these days. (Not that
one would want high Q for supply/ground coupling anyway and would usually
deliberately degrade Q to prevent noise peaking.)
Or do you find that you do get useful inductance from printed inductors at
100MHz-odd freqs? What sort of inductance can be achieved in reasonable
space using printed inductors and standard line/spacing of say 8/8 or 6/6?
Ian
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