Broadband Balanced-to-Balanced Filtering Power Divider Using HMSIW-SSPP Transmission Line
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2024-03
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Language
en
Pages
12
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Micromachines, Volume 15, issue 3
Abstract
In this paper, a novel broadband balanced-to-balanced (BTB) filtering power divider (FPD) utilizing the half-mode substrate-integrated waveguide and spoof surface plasmon polariton (HMSIW-SSPP) hybrid transmission line is introduced. Initially, a new HMSIW-SSPP unit cell is proposed, demonstrating a lower upper cut-off frequency compared to the classical HMSIW-SSPP unit cell. Building upon this unit cell, a bandpass BTB FPD is devised employing dual-layer stacked substrates, enabling independent control over the passband’s lower and upper cut-off frequencies through specific physical dimensions. Additionally, the incorporation of isolation resistors and defected ground structures in the BTB FPD enhances differential-mode isolation and common-mode (CM) suppression between output ports. A manufactured and tested BTB FPD prototype validates this design method, showcasing a broad fractional bandwidth of 52.31% (6.72–11.48 GHz), output port isolation surpassing 14.25 dB, and transmitted CM suppression exceeding 34.05 dB.Description
Publisher Copyright: © 2024 by the authors.
Keywords
balanced-to-balanced structure, broadband, filtering power divider, half-mode substrate-integrated waveguide, spoof surface plasmon polariton
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Citation
Liu, H, Xue, B & Xu, J 2024, ' Broadband Balanced-to-Balanced Filtering Power Divider Using HMSIW-SSPP Transmission Line ', Micromachines, vol. 15, no. 3, 358 . https://doi.org/10.3390/mi15030358