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Design of dual-mode substrate integrated coaxial line (SICL) cavity filter for millimeter-wave applications
I.S. Krishna,
Published in Institute of Electrical and Electronics Engineers Inc.
2018
Abstract
In this work, a novel dual-mode Substrate Integrated Coaxial Line (SICL) based bandpass filter operating at 28 GHz, targeted for 5G application is conceived. The proposed dual-mode bandpass filter is realized by exciting the degenerate modes in a corner-cut middle layer square patch by etching cross-shaped slots. The proposed filter exhibits a 12.25% 3-dB fractional bandwidth with a maximum 0.42 dB insertion loss in the passband. Frequency selectivity is enhanced by a transmission zero at 33.8 GHz which extends the out of band rejection up to at least 40 GHz. Further, the proposed SICL based cavity demonstrates a 46.75% size reduction as compared to its Substrate Integrated waveguide (SIW) counterpart. The superior electromagnetic compatibility of the proposed miniaturized SICL based dual-mode bandpass filter makes it an attractive option to deploy in millimeter-wave range. © 2018 IEEE.
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Figures & Tables (9)
  • Figure-0
    Fig. 1. Design of the proposed SICL based cavity ... Expand
  • Figure-1
    Fig. 4. Coupling schema of the proposed SICL based dual-mode ... Expand
  • Figure-2
    Fig. 3. Vector electric field distribution at higher order ... Expand
  • Figure-3
    Fig. 2. Top view of the proposed center coupled inset fed SICL ... Expand
  • Figure-4
    Fig. 5. Variation of (a) reflection coefficient ... Expand
  • Figure-5
    Fig. 8. Full-wave simulated S-Parameters of the designed ... Expand
  • Figure-6
    Fig. 6. Top view of the proposed dual-mode SICL based filter ... Expand
  • Figure-7
    Fig. 7. E-field vector plot at 28.25 GHz in the proposed SICL ... Expand
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About the journal
JournalData powered by SciSpaceIEEE MTT-S International Microwave and RF Conference, IMaRC 2018
PublisherData powered by SciSpaceInstitute of Electrical and Electronics Engineers Inc.