Design of a Novel Wide Stopband Common Mode Filter with Slotted Ground
Anil Kumar Karra1, Sekhar M2, Arsavelli Janardhana3
1Anil Kumar Karra, Vignan’s Foundation for Science, Technology and Research, Guntur (Andhra Pradesh), India.
2Sekhar M, Vignan’s Foundation for Science, Technology and Research, Guntur (Andhra Pradesh), India.
3Arsavelli Janardhana, Assistant Professor, Lendi Institute of Engineering and Technology, Vijayanagaram (Andhra Pradesh), India.
Manuscript received on 14 February 2019 | Revised Manuscript received on 05 March 2019 | Manuscript Published on 08 June 2019 | PP: 310-312 | Volume-7 Issue-5S4, February 2019 | Retrieval Number: E10650275S419/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Design of filters for higher frequency ranges often face the limitation of stop band offset which is also a major problem in common mode filters design. Bandwidth enhancement of the stop band offset is the only solution to overcome the issue, in this paper a simple technique has been proposed to enhance stop band bandwidth in common mode filters. Ground slot technique is proposed to expand the bandwidth of stop band. The characteristics of the filter are analyzed by considering a filter model with three conductors. Proposed filter has a stop band bandwidth of 3.3 GHz with an all pass bandwidth of DC to 40GHz. The simulation results of the proposed design verify the performance of the filter. With the proposed ground slot technique the stop band bandwidth of the common mode filter has been increased by fifty percentage without any other problems.
Keywords: Common Mode Filter, Ground Slot, Stopband offset.
Scope of the Article: Optical Link Design