Compact antipodal Vivaldi antenna with rectangular slots and shaping of flare to cover 6 to 18 GHz

Bhagyalakshmi, M.; Sowjanya, Lanka Sree Lakshmi; Sastry, N. N.

doi:10.1080/02726343.2018.1543175

Cited by 3 publications

(4 citation statements)

References 10 publications

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“…An ultra-wideband small aperture tapered slot phased array antenna operating over 5.6-20 GHz with a VSWR of less than 2.5 can also be seen in literature [9]. A compact antipodal Vivaldi antenna with rectangular slots with shaping of flare design over 6-18 GHz is also reported in the literature [10]. A bandwidth of 6-18 GHz is reported with a modified Vivaldi antenna [11].…”

Section: Introductionmentioning

confidence: 88%

“…Log periodic antennas, Archimedean spirals, Log spirals, Ridged horns covering 2-18 GHz have been used in several applications [2][3][4]. DF systems cover 1-18 GHz usually in four bands namely 1-2 GHz, 3-4 GHz, [4][5][6][7][8][8][9][10][11][12][13][14][15][16][17][18] GHz. This can also be realized in a single band or in two bands.…”

Section: Introductionmentioning

confidence: 99%

“…Comparison of return loss with and without walls.From the plot it is observed that -For Red color plot representing the antenna design with side and back walls, the Return loss is below −7.5 dB over 5 [3][4][5][6][7][8][9][10][11][12][13][14][15][16]…”

mentioning

confidence: 99%

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

Prasanna¹,

Lakshmi²,

Sastry³

2019

PIER C

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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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Section: Introductionmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

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

Prasanna¹,

Lakshmi²,

Sastry³

2019

PIER C

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“…Another BAVA antenna of aperture size 44mm operating over a wide bandwidth of 1-20GHz also reported [13].A novel small aperture tapered and covering a bandwidth of 7.7-18 GHz in hardware has also been reported [14]. A compact antipodal Vivaldi antenna (AVA) with rectangular slots & shaping of taper, designed over 6-18 GHz is also reported in the literature [15].…”

Section: Introductionmentioning

confidence: 99%

Five Element Printed Modified Vivaldi Array Covering 5.3 to 20 GHz

chitturu¹,

Bhagyalakshmi²,

Neti³

2019

IJITEE

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Isolated singular Vivaldi antennas have been in vogue for multi octave band communications and EW applications. For shared aperture EW applications phased array antennas are being used extensively. For such applications the spacing between array elements is required to be less than 0.576λ for scanning to ±45° to reduce grating and side lobes, where the wavelength (λ) at the highest frequency. Single antennas covering 6 to 18GHz when inserted in an array perform differently due to mutual coupling effects. In this paper, the single isolated antenna is taken as a reference antenna and inserted in the array and parametric studies have been carried out to arrive at an optimum solution for maximizing VSWR and pattern bandwidth in a five element array environment. A S11 of less than -7.5 dB over 5.3-18 GHz has been obtained in array environment. Satisfactory scanning of ±40°over 5.3 to 17.5 GHz is obtained for an 8 element linear array and results are presented.

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A Compact Sinusoidally Tapered Slot Vivaldi Linear Antenna Array for X and Ku Band Applications

Bhagya Lakshmi,

Vakula

2024

Wireless Pers Commun

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Compact antipodal Vivaldi antenna with rectangular slots and shaping of flare to cover 6 to 18 GHz

Cited by 3 publications

References 10 publications

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

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

Five Element Printed Modified Vivaldi Array Covering 5.3 to 20 GHz

A Compact Sinusoidally Tapered Slot Vivaldi Linear Antenna Array for X and Ku Band Applications

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