Chia Ho Wu

ORCID: 0000-0003-1018-9292
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About
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Research Areas
  • Microwave Engineering and Waveguides
  • Electromagnetic Compatibility and Noise Suppression
  • Photonic Crystals and Applications
  • Plasmonic and Surface Plasmon Research
  • Advanced Antenna and Metasurface Technologies
  • Photonic and Optical Devices
  • Microwave and Dielectric Measurement Techniques
  • Power Line Communications and Noise
  • Optical Coatings and Gratings
  • Electromagnetic Simulation and Numerical Methods

Zhejiang University of Technology
2019-2023

This paper proposed a kind of guard traces based on subwavelength periodic structure to reduce the far-end crosstalk (FEXT) parallel microstrip lines in PCB. technology can be used improve false triggering and signal transmitting capacity multiconductor transmission line circuit system. In order explore present novel trace effect isolating electromagnetic interference (EMI), frequency response mutual capacitance inductance overall system was provided an equivalent model built. comparison...

10.1109/access.2022.3168679 article EN cc-by IEEE Access 2022-01-01

In this study, we established, for the first time, an equivalent circuit model coupled subwavelength periodic microstrip lines (CSPMLs) over a wide frequency range. The composed of two identical and parallel has fundamental modes, i.e., odd even modes. Based on finite element method (FEM) is used to extract parameters, especially frequency-dependent behavior mutual capacitance inductance CSPMLs. <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML"...

10.1109/access.2022.3143812 article EN cc-by IEEE Access 2022-01-01

Abstract In this paper, the characteristics of a class transmission lines which support spoof surface plasmon polaritons are investigated both numerically and experimentally. order to provide characteristic impedance for PCB designers, equivalent circuit parameters microstrip line periodically structured on subwavelength scale extracted with numerical method. It is found that significantly vary frequency when periodic structure introduced into edge conventional line. The results time-domain...

10.1038/s41598-019-55200-z article EN cc-by Scientific Reports 2019-12-11

A viable wide-band circuit model of parallel corrugated differential transmission line is established. By solving for the even- and odd-modes in this structured line, equivalent capacitance, inductance, resistance, conductance per unit length are calculated, then characteristic impedances common signals obtained. The <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">${S}$ </tex-math></inline-formula>...

10.1109/access.2020.3044322 article EN cc-by IEEE Access 2020-01-01

Abstract Since a planar periodic transmission line can suppress drastically the electromagnetic coupling, it would be advantageous to use such kind of lines in solving problem miniaturization circuit area. By adjusting lattice constants and geometric parameters microstrip lines, time domain characteristic impedance that is same as conventional (CMLs) achieved. Such therefore used trick high-speed digital signals, causing signal misjudge lines. The theoretical analysis has been verified by...

10.1038/s41598-023-41320-0 article EN cc-by Scientific Reports 2023-08-28

Abstract It has been proved that a subwavelength periodic microstrip structure can be used to suppress crosstalk between two adjacent lines and such widely in the application of high‐speed circuit systems. To further increase accuracy equivalent model line (SPML), we focus our attention on single unit cell with structure, which is divided into several sub‐regions, parameters each sub‐region are analysed for setting up complete cells. Then details interaction electromagnetic field clearly...

10.1049/mia2.12324 article EN cc-by-nc-nd IET Microwaves Antennas & Propagation 2022-11-16

Abstract Peierls transition that modifies electronic band structure has attracted intensive attention in solid state physics. In the present work, a photonic analog of been observed 1-D triangular metal diaphragm array, where bandgap structures have designed at will by adjusting periodically positions. It is shown numerical analysis transmission and radiation effect periodic through rule exhibits behavior significantly different from original with each unit cell containing diaphragm. The...

10.21203/rs.3.rs-2920219/v1 preprint EN cc-by Research Square (Research Square) 2023-05-23

Abstract In order to employ periodic corrugated microstrip lines for reducing or suppressing electromagnetic interference in high‐speed high‐frequency circuits, a precise method is necessary calculate and measure the characteristic impedance of lines. The equation (depending on frequency) lossless was obtained based transfer matrix method. A time domain pulse used instantaneous conventional lines, when does not change with distance, it can be identified as However, time‐domain pulses are...

10.1049/mia2.12430 article EN cc-by-nc IET Microwaves Antennas & Propagation 2023-11-14

In order to directly observe the conversion between guided-wave modes and leaky-wave in a periodic structure, quadrilateral metal diaphragms arranged two ways on surfaces were analyzed. first scheme, each unit cell structure contains diaphragm, of which dispersion characteristics structures analyzed by finite element method. The results numerical show that adjusting lattice constants geometrical parameters diaphragms, transmission bandwidth present 1-D diaphragm could be limited X-band,...

10.1109/access.2023.3244578 article EN cc-by IEEE Access 2023-01-01

Abstract Peierls transition that modifies electronic band structure has attracted intensive attention in solid state physics. In the present work, we report a photonic analog of been observed 1-D triangular metal diaphragm array, where bandgap structures have designed at will by adjusting periodically positions. It is shown numerical analysis transmission and radiation effect periodic through rule exhibits behavior significantly different from an original with each unit cell containing...

10.1038/s41598-023-42218-7 article EN cc-by Scientific Reports 2023-09-22
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