A PARAMETRIC ANALYSIS & DESIGN OF ALL METAL VIVALDI ANTENNA COVERING 3.0-18 GHZ FOR DF AND PHASED ARRAY APPLICATIONS | Zendy

Chitturi Lakshmi Prasanna | Zendy; M. Bhagya Lakshmi | Zendy; N. N. Sastry | Zendy

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A PARAMETRIC ANALYSIS & DESIGN OF ALL METAL VIVALDI ANTENNA COVERING 3.0-18 GHZ FOR DF AND PHASED ARRAY APPLICATIONS

Author(s) -

Chitturi Lakshmi Prasanna,

M. Bhagya Lakshmi,

N. N. Sastry

Publication year - 2019

Publication title -

progress in electromagnetics research c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.341

H-Index - 34

ISSN - 1937-8718

DOI - 10.2528/pierc19020601

Subject(s) - vivaldi antenna , phased array , parametric statistics , antenna (radio) , electronic engineering , engineering , electrical engineering , computer science , antenna measurement , mathematics , statistics

Ultra-wideband antennas covering 1–18 GHz are required for Direction Finding (DF) and phased array applications in electronic warfare and communication systems. Several antennas such as Archimedean spirals, Log periodics, Ridged horns have been extensively used for ESM-DF applications. In this paper an all metal Vivaldi antenna covering 3–18 GHz is designed using HFSS software, and hardware has been realized. A measured VSWR of less than 2.5 over 3–18 GHz is obtained. Radiation patterns are satisfactory both in simulations and measurements. There is fairly good agreement between the two. Further parametric studies are carried out on the single antenna with side and back walls, and this design is optimized for VSWR of less than 2.5 over the band. This antenna is used in a linear array of 8 elements. For this array in simulations, scanned patterns devoid of grating lobes are obtained from 3.0 GHz to 9.0 GHz, and results are presented.

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