التفاصيل البيبلوغرافية
| العنوان: |
A Novel Ultrawideband Absorptive Common-Mode Filter Design Using a Miniaturized and Resistive Defected Ground Structure. |
| المؤلفون: |
Tseng, Shi-Kang, Chiu, Cheng-Nan, Tsao, Yu-Ching, Chiou, Yih-Peng |
| المصدر: |
IEEE Transactions on Electromagnetic Compatibility; Feb2021, Vol. 63 Issue 1, p66-73, 8p |
| مصطلحات موضوعية: |
PRINTED circuits, FILTERS & filtration, MICROSTRIP transmission lines, ELECTROMAGNETIC interference, BANDWIDTHS |
| مستخلص: |
An ultrawideband absorptive common-mode filter (A-CMF) with a newly developed defected ground structure (DGS) is proposed in this article. The DGS miniaturized to a subwavelength size is able to totally suppress the common-mode noise while maintaining the signal integrity of the differential mode. In addition, the reflection and radiation of the common-mode noise are negligible in the stopband. For quick design, a simplified equivalent circuit model is also proposed. This model can be employed to estimate the resistances of the lumped resistors embedded in the DGS to obtain a very wide absorption band. In the demonstrated example, the fractional bandwidth determined by a 90% absorption efficiency can achieve as large as 104% around 3.55 GHz for an A-CMF realized on a simple two-layer printed circuit board. Such a widely absorptive bandwidth is never achieved before to our knowledge. The design methodology is validated by full-wave simulation. Finally, real measurement of the design is also carried out to confirm the design and analysis. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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