[SI-LIST] Re: Ringing in Lumped & Distributed Circuits
- From: Scott McMorrow <scott@xxxxxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Tue, 17 May 2011 07:56:14 -0400
Rajan
Pozar, in his book, Microwave Engineering, has a chapter on resonance
and covers both lumped circuit resonators and transmission line
resonators. Both lumped and distributed circuits resonate.
regards,
Scott
Scott McMorrow
Teraspeed Consulting Group LLC
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On 5/17/2011 7:35 AM, Rajan Hansa wrote:
> Hello Steve,
>
>
> Thanks for your reply but I am sorry that I am not able to relate it with
> electrical circuits.
>
>
>
> Do you mean to say that distributed electrical circuits ring even if it's
> properly terminated ?
>
>
>
> Does ringing phenomenon ( overshoot& undershoot) in lumped circuit is
> different than distributed circuit ?
>
>
>
> Rgds,
>
> Rajan
>
>
> On Tue, May 17, 2011 at 4:53 PM, steve weir<weirsi@xxxxxxxxxx> wrote:
>
>> Rajan,
>>
>> Distributed networks most definitely can and do ring. Earth's atmosphere up
>> to the ionosphere makes a great example: the Schumann Resonance at just
>> under 8Hz.
>>
>> Steve
>>
>>
>>
>> On 5/17/2011 3:53 AM, Rajan Hansa wrote:
>>
>>> Hello Experts,
>>>
>>>
>>> I have a problem understanding ringing concept in lumped and distributed
>>> circuits. What I have learned that lumped circuits may or may not ring
>>> depending on the Q of the circuit but distributed circuits with terminated
>>> load will not have any ringing.
>>>
>>>
>>>
>>> where Q for RLC circuit = (L/C)1/2 /R
>>>
>>>
>>>
>>> I would like know :
>>>
>>>
>>>
>>> 1) Why Q is not important in distributed circuits ? If it’s important
>>> then how termination resistor affects Q in distributed circuit ?
>>>
>>>
>>>
>>> 2) Is ringing phenomenon ( overshoot& undershoot) in lumped circuit
>>> is
>>> different than distributed circuit ?
>>>
>>>
>>>
>>> Rgds,
>>>
>>> Rajan
>>>
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>> --
>> Steve Weir
>> IPBLOX, LLC
>> 150 N. Center St. #211
>> Reno, NV 89501
>> www.ipblox.com
>>
>> (775) 299-4236 Business
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>>
>>
>>
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