التفاصيل البيبلوغرافية
| العنوان: |
Design of a Common-Mode Rejection Filter Using Dumbbell-Shaped Defected Ground Structures Based on Equivalent Circuit Models. |
| المؤلفون: |
Choi, Jeong-Sik, Min, Byung-Cheol, Kim, Mun-Ju, Kumar, Sachin, Choi, Hyun-Chul, Kim, Kang-Wook |
| المصدر: |
Electronics (2079-9292); Aug2023, Vol. 12 Issue 15, p3230, 11p |
| مصطلحات موضوعية: |
DUMBBELLS, SIGNAL integrity (Electronics), INSERTION loss (Telecommunication), PRINTED circuits, ELECTROMAGNETIC interference, RESONATORS |
| مستخلص: |
An efficient design method is proposed for a compact common-mode rejection (CMR) filter utilizing dumbbell-shaped defected ground (DS-DG) structures and gap-coupled stub (GCS) resonators. A CMR filter for differential lines helps to improve the signal integrity of high-speed digital signals on printed circuit boards. The proposed CMR filter design is based on the equivalent circuit models, while the previous designs depended heavily on the DS-DG structure optimization using the EM simulations. The proposed CMR filter effectively rejects the common-mode components while minimally affecting the differential signals. To prove the simplified design approach, a fifth-order Chebyshev band-stop filter is designed with three DS-DG structures and two GCS resonators. From the simulated and measured results, it is found that the proposed CMR filter provides ~90% fractional frequency bandwidth with more than 20 dB of common-mode rejection ratio and less than 0.6 dB of insertion loss of the differential signal. [ABSTRACT FROM AUTHOR] |
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