Finite-element Adaptive Meshing Statistics of Liquid Crystal Coaxial Phase Shifters for mmW Electronics and THz Photonics Beyond Display: A Comparative Study

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DOI:

https://doi.org/10.4302/plp.v16i3.1275

Abstract

Sub-mmW and THz frequencies offer ultra-high-speed communications for next-generation 5G/6G networks, wherein research advancing the understanding will benefit the electronics and photonics community. Specifically, meshing resolutions across varying frequency ranges and material properties are central to the solution accuracy, reliability, and cost (memory and time) of computational mmW and THz simulations, particularly for the emerging reconfigurable coaxial phase shifters employing nematic liquid crystals (LCs) as tunable media. In the present study, a comparative meshing statistics analysis is conducted for two devices designed for 60 GHz and 0.3 THz, respectively. Each design features two distinct tuning states (LC permittivity of 2.754 and 3.3, respectively), all pertinent to the coaxial TEM (Transverse Electromagnetic) mode. By quantifying the broadband meshing and solution statistics of diverse frequencies and dielectric tuning states for the first time, we establish memory-conserving computational metrology involving reconfigurable coaxial devices operationalized with LC-filled tunable dielectrics tailored for mmW electronics and THz photonics.

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References

  1. M. Makowski, I. Ducin, K. Kakarenko, J. Suszek, A. Kowalczyk, "Performance of the 4k phase-only spatial light modulator in image projection by computer-generated holography", Phot. Lett. Poland 8, 1 (2016). CrossRef
  2. J.F. Li, H.R. Li, "Liquid Crystal-Filled 60 GHz Coaxially Structured Phase Shifter Design and Simulation with Enhanced Figure of Merit by Novel Permittivity-Dependent Impedance Matching", Electronics 13, 3 (2024). CrossRef
  3. J.F. Li, H.R. Li, "Modeling 0.3 THz Coaxial Single-Mode Phase Shifter Designs in Liquid Crystals with Constitutive Loss Quantifications", Crystals 14, 4 (2024). CrossRef
  4. J.F. Li, D.P. Chu, "Liquid Crystal-Based Enclosed Coplanar Waveguide Phase Shifter for 54–66 GHz Applications", Crystals 9, 12 (2019). CrossRef
  5. Z. Cendes, "The development of HFSS", USNC-URSI Radio Science Meeting (Fajardo, IEEE 2016). CrossRef
  6. T. Vaupel, "Accuracy And Modeling Improvements For An Integral Equation Framework Applied To Thin Layer Microstrip And Substrate Integrated Waveguide (Siw) Structures", EuCAP (Copenhagen, IEEE 2020). CrossRef
  7. L.J. Jiang, W.C. Chew, "Low-frequency fast inhomogeneous plane-wave algorithm (LF-FIPWA)", Microwave Opt. Tech. Lett. 40, 2 (2004). CrossRef
  8. J. Zhu, D. Jiao, "Eliminating the Low-Frequency Breakdown Problem in 3-D Full-Wave Finite-Element-Based Analysis of Integrated Circuits", IEEE Trans. Microw. Theory Tech. 58, 10 (2010). CrossRef

Author Biographies

Jinfeng Li, Beijing Institute of Technology

Prof. Jinfeng Li is a microwave engineer, a specialist in novel reconfigurable RF devices, as well as an authority on liquid crystals-based microwave and millimetre-wave technology. He received the Ph.D. degree in liquid crystals-based microwave and millimeter-wave electronics engineering from University of Cambridge. Prof. Li was a recipient of the IET Award, the AP Jarvis Prize, the AETiC Highly Cited Article Award 2023, and two Best Paper Awards at the IEEE and IOP conferences, respectively. He was a Cambridge Trust Scholar, Speaker at the 50th & 46th European Microwave Conferences, Emerging Technologist with Barclays UK, Editorial Board member of three Science Citation Index journals, TPC and Session Chair of five IEEE conferences, including IEEE ISAP (27th International Symposium on Antennas and Propagation), and IEEE 15th International Conference on Microwave and Millimeter Wave Technology (ICMMT 2023). He was elected Senior Member of the China Institute of Communications (CIC), Top 1% Reviewer on Publons (Web of Science), Reviewing Expert for the China Academic Degrees and Graduate Education Development Center, Grants Reviewer for the National Natural Science Foundation of China (NSFC), Newton Prize (£1m fund) reviewer for the UK National Commission for UNESCO, and Grants Reviewer for the Health and Social Care Delivery Research (HSDR) fund from National Institute for Health Research (NIHR), UK. Prof. Li was elected National-level Young Talent in 2023. He is teaching two undergraduate modules including (1) States of the Arts in Liquid Crystals Millimeter-wave Technology for 6G; and (2) Frontiers and Progress of Electrical and Computer Engineering.

Haorong Li, Beijing Institute of Technology

Mr. Haorong Li is a postgraduate research student at the Beijing Key Laboratory of Millimeter Wave and Terahertz, Beijing Institute of Technology, under the supervision of Prof. Jinfeng Li. 

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Published

2024-10-01

How to Cite

[1]
J. Li and H. Li, “Finite-element Adaptive Meshing Statistics of Liquid Crystal Coaxial Phase Shifters for mmW Electronics and THz Photonics Beyond Display: A Comparative Study”, Photonics Lett. Pol., vol. 16, no. 3, pp. 40–42, Oct. 2024.

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Vol. 16 No. 3 (2024)

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Articles

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