Finite-difference time-domain field approximations for thin wires with a lossy coating

Boonzaaier, J.J.; Pistonius, C.W.I.

doi:10.1049/ip-map:19949903

Cited by 21 publications

(2 citation statements)

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“…To address this issue, [16] proposed a unique protocol, which adopts a duty cycle scheduling and radio wake-up identification scheme [15] in Figure 13 Figure. 14. In numerical convergence experiments, as reported [18].…”

Section: Wake-up Receivermentioning

confidence: 94%

Chip design of WuRx front-end and IF Gm-C bandpass filter with antenna to near infrared charging for biomedical application

Huang

Lai

Lay

2014

2014 IEEE International Symposium on Bioelectronics and Bioinformatics (IEEE ISBB 2014)

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A 1-V 5.8 GHz CMOS front-end applying in dedicated biomedical systems has been successfully implemented by TSMC 0.18 μm CMOS process. This system has built in near-infrared laser-driven (NIRLD) might be a promising wireless electrical power source and phase in wake up receiver technology using direct active RF detection for biomedical nanodevices power saving. This proposed prototype includes an input matching low noise amplifier (LNA), a passive balun, a down-conversion Gilbert mixer, a gm-boosting Colpitts VCO, followed by an intermediate frequency (IF) Gm-C bandpass filter. The measured results achieve an input return loss of 27 dB, a conversion gain (CG) of 29 dB, a double-side band (DSB) noise figure (NF) of 4.95 dB, and a third-order intercept point (IIP3) of -24.4 dBm, a tuning range of 5.17-5.98 GHz, a phase noise of -118.5 dBc/Hz at 1 MHz offset from 5.8 GHz and a power consumption of 27.6 mW from 1.0 V supply. The overall chip area including pads is 2.1 (1.75 x 1.2) mm 2 . This paper also has external connect with a broadband loop-type chip antenna to support biomedical nanodevices healthcare application.

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Section: Wake-up Receivermentioning

confidence: 94%

Chip design of WuRx front-end and IF Gm-C bandpass filter with antenna to near infrared charging for biomedical application

Huang

Lai

Lay

2014

2014 IEEE International Symposium on Bioelectronics and Bioinformatics (IEEE ISBB 2014)

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“…The FDTD iterative formulas of the magnetic fields adjacent to the columns can be found in [15]. On the other hand, the electric fields on the columns are set to zero, and the electric fields in the Yee cell adjacent to the columns of the dipole antenna should be computed by the regular FDTD iteration.…”

Section: The Radiation Electromagnetic Field Calculation Of the Dipolmentioning

confidence: 99%

A Hybrid Method for the Coupling Analysis of Multiconductor Transmission Lines Excited by Dipole Antenna

Ye¹,

Gou²,

Zhou³

et al. 2018

PIER Letters

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This paper presents a hybrid method consisting of thin wire FDTD method and transmission line (TL) equations to be used for the coupling analysis of multiconductor transmission lines (MTLs) excited by a dipole antenna. In this method, the thin wire FDTD method is used to build the structure of the dipole antenna and obtain the radiation electromagnetic fields surrounding the MTLs, which are introduced into the TL equations as the distribution sources. The TL equations are utilized to model the coupling of the radiation electromagnetic fields to the MTLs, which are discrete by the scheme of the FDTD method to obtain the transient voltage and current responses on the lines and terminal loads. The accuracy and efficiency of this method have been verified by comparing with the commercial simulation software CST via one case. Moreover, the influences of the frequencies and polarization of the dipole antenna and the heights of the MTLs on the coupling of MTLs are analyzed.

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A time domain hybrid method for the coupling of two wires above the ground excited by electromagnetic pulses

Rui

Liao

et al. 2019

Micro & Optical Tech Letters

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To efficiently solve the coupling problems of two wires above the ground excited by incident electromagnetic pulses, a time domain hybrid method consisting of transmission line (TL) equations, finite difference time domain (FDTD) method, and a fast calculation approach to the excitation fields of the wires is presented. In this hybrid method, a novel coupling model of the two wires is established by the TL equations firstly, which is suitable for arbitrary heights of the two wires and for considering influences of the ground on distributed parameters of the two wires. Then, due to the obviously infinite dimension of the ground, a fast calculation approach is utilized to obtain the excitation fields of the wires to avoid modeling the ground directly. Finally, the FDTD method is adopted to discretize the TL equations to calculate the transient responses at the termination loads of the two wires. Numerical examples are given to demonstrate the accuracy and efficiency of this hybrid method. It shows that this method can tremendously decrease the memory requirement and computation time, compared with the full‐wave method. The applicability of this method in fast coupling analysis of long two wires with arbitrary heights above the ground excited by multiple electromagnetic pulses is verified.

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Finite-difference time-domain field approximations for thin wires with a lossy coating

Cited by 21 publications

References 0 publications

Chip design of WuRx front-end and IF Gm-C bandpass filter with antenna to near infrared charging for biomedical application

Chip design of WuRx front-end and IF Gm-C bandpass filter with antenna to near infrared charging for biomedical application

A Hybrid Method for the Coupling Analysis of Multiconductor Transmission Lines Excited by Dipole Antenna

A time domain hybrid method for the coupling of two wires above the ground excited by electromagnetic pulses

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