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Progress In Electromagnetics Research Letters
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AN EMBEDDED ISOLATION MOAT STRUCTURES WITH WIDE STOPBAND AND LOW PARASITIC EFFECT FOR ELIMINATION SIMULTANEOUS SWITCHING NOISE

By C.-S. Chang, M.-P. Houng, N.-F. Wang, and L.-S. Chen

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Abstract:
In this letter, we use two embedded isolation moats which have different size to obtain the wide stopband elimination performance. The proposed structure is realized by embedding the double isolation moats between power and ground planes. The suppression frequency range of the proposed structures is from 1.2 to 7.2 GHz and the peak noise improvement in time domain is 36%. Furthermore, the proposed structure uses two elimination cells to avoid the parasitic effect generated in the frequency range of several hundred MHz.

Citation:
C.-S. Chang, M.-P. Houng, N.-F. Wang, and L.-S. Chen, "An Embedded Isolation Moat Structures with Wide Stopband and Low Parasitic Effect for Elimination Simultaneous Switching Noise," Progress In Electromagnetics Research Letters, Vol. 6, 91-98, 2009.
doi:10.2528/PIERL08122305

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