Dear Yanni

I have done some work on high Q resonators.

I have worked mainly with RFMEMS as filter devices. Have you looked at
papers on Surface Acoustic Wave (SAW) devices, as this is where a lot of
work has already been covered on RFMEMS and achieving higher Q's than other
means such as Quartz cystal resonators for example.

For a filter circuit the Q factor can be defined as the peak
frequency/bandwidth. So for a filter device it is obvious that the tighter
the bandwidth the better the device. Thats the simplistict view that I
understand.

I'm not sure what mathematical proof you are interested in and depends on
what your applications are?

Best regards

Garfay

web: http://www.garfayliu.com

----- Original Message -----
From: "hui li" 
To: 
Sent: Monday, April 07, 2003 8:07 PM
Subject: [mems-talk] High Q resonator


> Dear all,
>
> One of the hot topics in RFMEMS is high frquency high Q rsonator. It seems
> that a high Q is of critical importance for MEMS resonators.
>
> However, i did not see any literature that specifies why a high Q is so
> important. Could anyone tell me why we need a such high Q? (I would likt
it
> to be mathematical)
>
> Thank you very much!
>
> Yanni
>
>
>
>
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