[SI-LIST] Re: Spiral Inductor

Ron,Isnt there a differene in on-chip and off-chip embedded inductors in LTCC. 
Can we apply the same concepts?-VJ

Ron Kinder <ron.kinder@xxxxxxxxxxxx> wrote:
Drew,

The paper is:

"Frequency-Independent Equivalent-Circuit Model for On-Chip Spiral 
Inductors"

Yu Cao, Robert A Groves, Xuejue Huang, Noah D. Zamdmer, Jean-Oliver 
Plouchart, Richard A. Wachnik, Tsu-Jae King, and Chenming Hu

IEEE Journal of Solid State Circuits, Vol. 38, No. 3, March 2003, page 
419.

I hope this helps,
Ron


>From: "W. Drew Martin" 
>To: 
>Subject: RE: [SI-LIST] Re: Spiral Inductor
>Date: Tue, 15 Apr 2003 18:04:21 -0600
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>
>Ron,
>
>Could you provide the reference you are referring to? Month & page# 
is
>good.
>
>Thanks,
>Drew
>
>--------------------------------------------------
>W. Drew Martin
>Ansoft Corporation
>3800 Arapahoe Ave., Suite 250
>Boulder, CO 80303
>TEL: (303) 541-9525 ext.34
>FAX: (303) 541-9609
>http://www.ansoft.com/ 
>
>
>
>-----Original Message-----
>From: si-list-bounce@xxxxxxxxxxxxx
>[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Ron Kinder
>Sent: Tuesday, April 15, 2003 11:59 AM
>To: si-list@xxxxxxxxxxxxx; varvij@xxxxxxxxx
>Subject: [SI-LIST] Re: Spiral Inductor
>
>
>
>Vijay,
>
>The latest issue of IEEE Journal of Solid State Circuits has a paper
>on wide bandwidth spiral inductors. I haven't had time to read it 
yet,
>but it looks interesting. Most spiral inductor models don't work over
>wide bandwidths, and the authors claim to have an improvement.
>
>Regards,
>Ron Kinder
>
>
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>>From: "D G" 
>>To: si-list@xxxxxxxxxxxxx
>>Date: Wed, 16 Apr 2003 01:42:33 +0800
>>Subject: [SI-LIST] Re: Spiral Inductor
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>>
>>From: Vijay Varadarajan 
>>>
>>> Hi,
>>> I am working on an embedded inductor in LTCC for
>>> 5-6GHz operations. Does anyone have ideas on
>>> increasing the self - resonant frequency? Thank you.
>>> -VJ
>>> PS: Am using copper conductors with top and ground planes.
>>
>>This is probably obvious, but use less capacitance and try parallel
>resistance. That means keeping ground planes away and possibly using
>embedded parallel resistors to damp any resonance (if the process
>allows it). There's not much you can do about capacitance between
>windings.
>>
>>Is this a narrowband or broadband problem?
>>
>>--
>>Daniel
>>
>>
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