NULL SYNTHESIS OF SCANNED LINEAR ARRAY ANTENNA WITH MINIMUM SIDE LOBE LEVEL AND FIXED DYNAMIC RANGE RATIO USING ITERATIVE FAST FOURIER TRANSFORM

This paper presents a method based on iterative fast fourier technique for placing nulls in prescribed directions by amplitude-only control method in the radiation pattern of scanned linear array of uniformly spaced isotropic antennas with fixed dynamic range ratio of amplitude distribution and mini...

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Main Authors: B.C. Mahato, G.K. Mahanti, A.K. Panda
Format: Article
Language:English
Published: ICT Academy of Tamil Nadu 2011-09-01
Series:ICTACT Journal on Communication Technology
Subjects:
Online Access:http://ictactjournals.in/paper/1_Paper_377_381.pdf
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author B.C. Mahato
G.K. Mahanti
A.K. Panda
author_facet B.C. Mahato
G.K. Mahanti
A.K. Panda
author_sort B.C. Mahato
collection DOAJ
description This paper presents a method based on iterative fast fourier technique for placing nulls in prescribed directions by amplitude-only control method in the radiation pattern of scanned linear array of uniformly spaced isotropic antennas with fixed dynamic range ratio of amplitude distribution and minimum peak side lobe level. Two examples have been presented, one with 20 isotropic antennas for placing two nulls and another with 22 isotropic antennas for placing wide null. Dynamic range ratio in both the cases has been fixed at 4.0.The method uses the property that for a linear array with uniform element spacing, an inverse Fourier transform relationship exists between the array factor and the element excitations.
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spelling doaj.art-6b1c8b12fc03430f94035ac528c6f4392022-12-21T18:34:31ZengICT Academy of Tamil NaduICTACT Journal on Communication Technology0976-00912229-69482011-09-0123377381NULL SYNTHESIS OF SCANNED LINEAR ARRAY ANTENNA WITH MINIMUM SIDE LOBE LEVEL AND FIXED DYNAMIC RANGE RATIO USING ITERATIVE FAST FOURIER TRANSFORMB.C. Mahato0G.K. Mahanti1A.K. Panda2Department of Electronics and Communication Engineering, Aryabhatta Institute of Engineering and Management, West Bengal, IndiaDepartment of Electronics and Communication Engineering, National Institute of Technology, Durgapur, West Bengal, IndiaDepartment of Electrical Engineering, National Institute of Technology, Rourkela, Orissa, IndiaThis paper presents a method based on iterative fast fourier technique for placing nulls in prescribed directions by amplitude-only control method in the radiation pattern of scanned linear array of uniformly spaced isotropic antennas with fixed dynamic range ratio of amplitude distribution and minimum peak side lobe level. Two examples have been presented, one with 20 isotropic antennas for placing two nulls and another with 22 isotropic antennas for placing wide null. Dynamic range ratio in both the cases has been fixed at 4.0.The method uses the property that for a linear array with uniform element spacing, an inverse Fourier transform relationship exists between the array factor and the element excitations.http://ictactjournals.in/paper/1_Paper_377_381.pdfAntenna ArraysFast Fourier TransformNull SynthesisSide Lobe LevelDynamic Range Ratio
spellingShingle B.C. Mahato
G.K. Mahanti
A.K. Panda
NULL SYNTHESIS OF SCANNED LINEAR ARRAY ANTENNA WITH MINIMUM SIDE LOBE LEVEL AND FIXED DYNAMIC RANGE RATIO USING ITERATIVE FAST FOURIER TRANSFORM
ICTACT Journal on Communication Technology
Antenna Arrays
Fast Fourier Transform
Null Synthesis
Side Lobe Level
Dynamic Range Ratio
title NULL SYNTHESIS OF SCANNED LINEAR ARRAY ANTENNA WITH MINIMUM SIDE LOBE LEVEL AND FIXED DYNAMIC RANGE RATIO USING ITERATIVE FAST FOURIER TRANSFORM
title_full NULL SYNTHESIS OF SCANNED LINEAR ARRAY ANTENNA WITH MINIMUM SIDE LOBE LEVEL AND FIXED DYNAMIC RANGE RATIO USING ITERATIVE FAST FOURIER TRANSFORM
title_fullStr NULL SYNTHESIS OF SCANNED LINEAR ARRAY ANTENNA WITH MINIMUM SIDE LOBE LEVEL AND FIXED DYNAMIC RANGE RATIO USING ITERATIVE FAST FOURIER TRANSFORM
title_full_unstemmed NULL SYNTHESIS OF SCANNED LINEAR ARRAY ANTENNA WITH MINIMUM SIDE LOBE LEVEL AND FIXED DYNAMIC RANGE RATIO USING ITERATIVE FAST FOURIER TRANSFORM
title_short NULL SYNTHESIS OF SCANNED LINEAR ARRAY ANTENNA WITH MINIMUM SIDE LOBE LEVEL AND FIXED DYNAMIC RANGE RATIO USING ITERATIVE FAST FOURIER TRANSFORM
title_sort null synthesis of scanned linear array antenna with minimum side lobe level and fixed dynamic range ratio using iterative fast fourier transform
topic Antenna Arrays
Fast Fourier Transform
Null Synthesis
Side Lobe Level
Dynamic Range Ratio
url http://ictactjournals.in/paper/1_Paper_377_381.pdf
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