Informatics Publishing Limited

Rajib Kar ¹, Vikas Maheshwari ¹, Md. Maqbool ¹, A. K. Mal ¹, A. K. Bhattacharjee ¹

Affiliations
1 Department of Electronics & Communication Engineering, National Institute of Technology, Durgapur, IN

Abstract

This work presents an accurate and efficient model to compute the delay and slew metric of on-chip interconnect of high speed CMOS circuits foe ramp input. Our metric assumption is based on the Burr's Distribution function. The Burr's distribution is used to characterize the normalized homogeneous portion of the step response. We used the PERI (Probability distribution function Extension for Ramp Inputs) technique that extends delay metrics and slew metric for step inputs to the more general and realistic non-step inputs. The accuracy of our models is justified with the results compared with that of SPICE simulations.

Keywords

Delay and Slew Calculation, Burr’s Distribution Function, Probability Distribution Function, Cumulative Distribution Function, Interconnect, Moment Matching.

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Shally Goyal ¹, Vikas Maheshwari ¹, Vandana Vikas Thakare ²

Affiliations
1 Department of Electronic and Communication, Amity University, M.P, IN
2 Department of Electronic and Communication, MITS, Gwalior-M. P., IN

Abstract

First we designed a band pass filter at the center frequency of 6.85 GHz using the increased Parallel coupled lines. After that for enhancing the bandwidth of the filter defected ground is proposed on the same structure for that we introduced rectangular aperture on ground plane. Size of the filter is 24.1 mm and The passband of the proposed filter is from 3.2GHz to 11.6GHz with center frequency 7.7GHz.

Keywords

Parallel Coupled Microstripline (PCML), Bandpass Filter, Backside Aperture, Defected Ground.

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Hemant Patidar ¹, Vikas Maheshwari ², Rajib Kar ³, Prasanna Kumar Singh ⁴, Vijay Kumar Sahu ⁵

Affiliations
1 Department of Electrical and Electronics Engineering, Oriental University, IN
2 Department of Electronics and Communication Engineering, Guru Nanak Institutions, IN
3 Department of Electronics and Communication Engineering, National Institute of Technology, Durgapur, IN
4 Department of Electronics and Communication Engineering, Noida Institute of Engineering and Technology, IN
5 Department of Electronics and Communication Engineering, Anil Neerukonda Institute of Technology and Sciences, IN

Abstract

In the present paper three evolutionary algorithms are compared and discussed for synthesizing a linear array of dipole antenna of half-wavelength oriented horizontally. All the dipoles are mutually coupled and designed to radiate the flat-top beam (FTB) pattern including multiple single null steering with little ripple deviation. The adopted evolutionary algorithms are; flower pollination algorithm (FPA), firefly algorithm (FA) and back tracking search algorithm (BSA), respectively. These algorithms are then combined with an efficient Inverse Fast Fourier Transform (IFFT) for reduction in the computation of evaluating time meaningfully. The required synthesis is attained by generating the current amplitudes at 00 and 1800 using binary phase shifters for the antenna array. The performance analysis of key antenna parameters along with the statistical parameters is achieved with the help of the optimization process and compared. In this paper, the MATLAB tool is used as a validation tool and the obtained simulation results are very satisfying and acceptable.

Keywords

Antenna Array, Backtracking Search Algorithm, Firefly Algorithm, Flower Pollination Algorithm, Flat-Beam Pattern, Side Lobe Level, Single Null Placement, Ripple, VSWR.

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