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In this paper, we propose a novel sub-terahertz on-chip bandpass filter utilizing substrate integrated plasmonic waveguide (SIPW) technology, compatible with the standard 0.13 \(\upmu \) m SiGe process technology. Our design incorporates a Comb-like array on the topmost metal layer of the substrate integrated waveguide (SIW) to excite spoof surface plasmon polaritons (SSPPs) modes. The proposed filter is designed to operate within the passband of 249–297 GHz, achieving the maximum insertion loss of 2 dB and the reflection coefficients better than 10 dB. These results validate the effectiveness of the proposed filter, highlighting its potential for practical applications in sub-terahertz frequency bands for 6G communication systems.

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Sub-terahertz On-Chip Filter Design for 6G Wireless Communication Systems

  • 会议论文

  • 发表日期：

    2025年

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  • Ritika Negi,
  • Ashish Kumar,
  • Debabrata Sikdar,
  • Ashwini Sawant

摘要

In this paper, we propose a novel sub-terahertz on-chip bandpass filter utilizing substrate integrated plasmonic waveguide (SIPW) technology, compatible with the standard 0.13 \(\upmu \) m SiGe process technology. Our design incorporates a Comb-like array on the topmost metal layer of the substrate integrated waveguide (SIW) to excite spoof surface plasmon polaritons (SSPPs) modes. The proposed filter is designed to operate within the passband of 249–297 GHz, achieving the maximum insertion loss of 2 dB and the reflection coefficients better than 10 dB. These results validate the effectiveness of the proposed filter, highlighting its potential for practical applications in sub-terahertz frequency bands for 6G communication systems.