An Improved U-Shaped Microstrip Meander-Line Slow Wave Structure for High Efficiency G-band Traveling Wave Tubes

Tahanian, Esmaeel; Dadashzadeh, Gholam R.

doi:10.2174/2352096509666151203220703

Cited by 1 publication

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“…Meanwhile, the numerical methods are used in commercial software packages. For example, an improved u-shaped microstrip meander-line slow wave structure for high efficiency Gband travelling wave tubes was designed using CST Microwave Studio , which is based on the method of finite differences in time domain [10]. Ultra-wide stopband in a compact low pass filter using stepped impedance resonators is designed using Sonnet , which is based on the method of moments [11].…”

Section: Introductionmentioning

confidence: 99%

Delay Systems Synthesis using Multi-Layer Perceptron Network

et al. 2018

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The aim of this paper is to accelerate development and investigation of the delay systems. The computational time for investigation of particular design of delay system may take from several minutes up to several days. To achieve the required constructional parameters of the system, the iterative calculations usually should be repeated many times. In this paper, an artificial neural network is proposed to be used as the universal approximator for solving mathematical problems of delay system investigation instead of usual analytical and numerical techniques. The application of a multi-layer perceptron is proposed for approximation of solution space with discrete estimates, which were initially received by application of numerical techniques. Different structures of the multi-layer perceptron were tested for approximation. The difference between delay systems synthesis, which was estimated using numerical techniques and trained multi-layer perceptron did not exceed 5% for any of the six design parameter values. The execution time for estimating single delay system was reduced from 240 s to 20 ms. Such fast estimation of design parameters enables performing delay system analysis and design in real time, preserving time for structure visualization in 3D or virtual reality environment.

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Section: Introductionmentioning

confidence: 99%