Abstract:
This article presents reflectionless low-pass filters based on a reflection symmetric structure for suppressing intentional electromagnetic interference (IEMI). The prote...Show MoreMetadata
Abstract:
This article presents reflectionless low-pass filters based on a reflection symmetric structure for suppressing intentional electromagnetic interference (IEMI). The protective structures can attenuate ultra-wideband (UWB) and narrowband (NB) IEMIs, and their potential application is investigated. The frequency and time characteristics of the structures are examined in terms of suppressing IEMI and maintaining signal integrity. Full-wave electrodynamic simulation was performed using the finite element method in the frequency range of 0–10 GHz. To verify the simulation results, prototypes were fabricated, and their S-parameters were measured using a vector network analyzer. The results indicate that the structures have a passband of 1.37 GHz for the modal filter (MF) and 0.8 GHz for the meander line (ML). The value of S21 for both structures does not exceed −15 dB in the frequency range from 3.5 to 10 GHz. In the full frequency range, S11 does not exceed −15 dB. The comparative analysis of IEMI suppression using these filters demonstrated that the structures offer advantages in terms of attenuating conducted UWB and NB IEMIs according to the analysis of five standard N-norms. The results indicate that all proposed structures can suppress IEMI with different spectra, but the ML structure showed the best suppression performance. However, this resulted in a reduced bandwidth of the ML. The simulation with data rates normalized to the bandwidth of each filter demonstrated that the MF provides higher signal transmission quality.
Published in: IEEE Transactions on Electromagnetic Compatibility ( Volume: 67, Issue: 2, April 2025)
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- IEEE Keywords
- Index Terms
- Low-pass ,
- Intentional Electromagnetic Interference ,
- Frequency Range ,
- Data Rate ,
- Finite Element Method ,
- Integration Of Signals ,
- Electromagnetic Interference ,
- Meandering ,
- Vector Network Analyzer ,
- Time Domain ,
- Frequency Domain ,
- Transmission Line ,
- Electric Field Strength ,
- Interval Values ,
- Printed Circuit Board ,
- Bit Error Rate ,
- Electric Field Distribution ,
- Air Gap ,
- High Data Rate ,
- Voltage Waveforms ,
- Eye Diagrams ,
- Phase Distortion ,
- Gaussian Pulse ,
- Breakdown Strength ,
- Dielectric Breakdown ,
- Circuit Power ,
- Unit Interval ,
- Filter Design ,
- Maximum Field
- Author Keywords
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Low-pass ,
- Intentional Electromagnetic Interference ,
- Frequency Range ,
- Data Rate ,
- Finite Element Method ,
- Integration Of Signals ,
- Electromagnetic Interference ,
- Meandering ,
- Vector Network Analyzer ,
- Time Domain ,
- Frequency Domain ,
- Transmission Line ,
- Electric Field Strength ,
- Interval Values ,
- Printed Circuit Board ,
- Bit Error Rate ,
- Electric Field Distribution ,
- Air Gap ,
- High Data Rate ,
- Voltage Waveforms ,
- Eye Diagrams ,
- Phase Distortion ,
- Gaussian Pulse ,
- Breakdown Strength ,
- Dielectric Breakdown ,
- Circuit Power ,
- Unit Interval ,
- Filter Design ,
- Maximum Field
- Author Keywords