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2025-09-04
A Substrate Integrated Half-Coaxial Line (SIHCL) and Its Application in Low-Pass Filter with Low Crosstalk
By
Progress In Electromagnetics Research C, Vol. 159, 154-158, 2025
Abstract
To achieve compact size and high electromagnetic shielding performance in RF systems, a substrate integrated half-coaxial line (SIHCL) structure is proposed. A new approximate synthesis method for the SIHCL is proposed using the equivalent capacitor. Subsequently, two fifth-order Chebyshev low-pass filters (LPFs) with a 0.1 dB ripple factor were designed and fabricated: the first implemented in the SIHCL structure and the second in microstrip technology. A comparison of the measured S-parameters between these two low-pass filters demonstrates that both near-end and far-end crosstalk is suppressed for the proposed SIHCL LPF, which is significant for high-speed and high-density integrated systems.
Citation
Yufan Chi, Yang-Qing Xu, Qing-Cheng Zhang, Wen-Xuan Shen, Yan He, Yan-Yan Kong, and Lin Li, "A Substrate Integrated Half-Coaxial Line (SIHCL) and Its Application in Low-Pass Filter with Low Crosstalk," Progress In Electromagnetics Research C, Vol. 159, 154-158, 2025.
doi:10.2528/PIERC25062303
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