Surface Wave Antenna Metallic Cell Pattern Design Using Neural Network Method

This work presents a surface wave antenna metallic cell pattern prediction method which can be generated based on the required far-field radiation pattern by the mean of applying Wasserstein generative adversarial network (WGAN) and bi-directional gated recurrent unit (Bi-GRU) neural network models. The predicted metallic cell pattern has been 3D-modelled in CST and the radiation pattern shows less than 1 dBi variation level from the desired input radiation pattern

Cosecant-Squared Radiation Pattern Surface Wave Antenna for Millimeter-wave FMCW Vertical-Looking Radar System

This work presents our preliminary work on an electric field (E-field) prediction technique and near-field tofar-field transformation of a surface wave antenna with a cosecant-squared pattern for a millimeter-wave FMCW vertical-looking radar system. Fourier and Gaussian fitting models were used to predict the magnitude and phase of E-field on the antenna surface, and the prediction error at the center operating frequency of 34.5 GHz are 4.6% and 4.6° respectively. The far-field E-plane pattern was achieved by applying Fourier Transform to the predicted near-field E-field distribution

Metallic Pattern Prediction for Surface Wave Antennas Using Bidirectional Gated Recurrent Unit Neural Network

This work presents a surface wave antenna metallic pattern prediction from electric field in near-field by applying Bidirectional Gated Recurrent Unit neural network prediction model. The metallic pattern of the proposed antenna has been predicted by using Bi-GRU neural network model with prediction accuracy 100% at 34.5GHz. Different uniform mark-space-ratios (MSR) of the metallic pattern do not affect the metallic pattern prediction accuracy

An efficient multiobjective optimizer based on genetic algorithm and approximation techniques for electromagnetic design

Author name used in this publication: S. L. HoAuthor name used in this publication: G. Z. Ni2006-2007 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

An improved PSO method with application to multimodal functions of inverse problems

Author name used in this publication: S. L. HoAuthor name used in this publication: G. Z. Ni2006-2007 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

An adaptive interpolating MLS based response surface model applied to design optimizations of electromagnetic devices

Author name used in this publication: S. L. HoAuthor name used in this publication: S. Y. Yang2006-2007 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Online torque estimator of switched reluctance motor running under hysteresis current control

Author name used in this publication: K. W. E. ChengAuthor name used in this publication: S. L. HoAuthor name used in this publication: S. Y. YangRefereed conference paper2005-2006 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

Uptake of Retrograde Tracers by Intact Optic Nerve Axons: A New Way to Label Retinal Ganglion Cells

Retrograde labelling of retinal ganglion cells with optic nerve transection often leads to degeneration of ganglion cells in prolonged experiments. Here we report that an intact optic nerve could uptake retrograde tracers applied onto the surface of the nerve, leading to high efficiency labelling of ganglion cells in the retina with long-term survival of cells. This method labelled a similar number of ganglion cells (2289 +/- 174 at 2 days) as the retrograde labeling technique from the superior colliculus (2250 +/- 94) or optic nerve stump (2279 +/- 114) after transection. This finding provides an alternative way to label retinal ganglion cells without damaging the optic tract. This will facilitate anatomical studies in identifying the morphology and connectivity of retinal ganglion cells, allowing secondary or triple labelling manipulations for long-term investigations.published_or_final_versio

An adaptive interpolating moving least squares response surface model applied to the design optimizations of electromagnetic devices

Author name used in this publication: S. L. HoAuthor name used in this publication: S. Y. YangVersion of RecordPublishe

Calculations of transient eddy current field and dynamic short circuit forces in a large power transformer

Author name used in this publication: S. L. HoAuthor name used in this publication: S. Y. YangAuthor name used in this publication: H. C. WongRefereed conference paper2005-2006 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe