Copolar and cross-polar radiation of Vivaldi antenna on dielectric substrate

Stockbroeckx, B.; Vorst, A. Vander

doi:10.1109/8.827381

Cited by 42 publications

(15 citation statements)

References 11 publications

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“…Experimental results show that the antenna gives omnidirectional radiation patterns and stable antenna gains in the operating bands with the compact size. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. The dipole triple-band antenna of size 15 3 70 mm 2 comprises three pairs of dipoles placed back to back to get the WLAN bands [1].…”

Section: Resultsmentioning

confidence: 99%

“…A small size 16 3 32 mm 2 dual-band dipole antenna for 2.4/5 GHz WLAN bands is achieved by connecting the rectangular patch with the main patch by a via hole to generate the desired dualband operations [9]. Different shapes of monopole antenna used to apply for WLAN application, such as G-shaped, F-shaped, 9shaped, T-shaped, and L-shaped [10][11][12][13]. However, the sizes of most antennas are large.…”

Section: Resultsmentioning

confidence: 99%

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Compact shape of vivaldi antenna for water detection using ground pentrating radar

Elsheakh

Abdallah

2014

Microw. Opt. Technol. Lett.

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A novel design of a Vivaldi antenna for water detection is presented for developing the ground penetrating radar system. In the newly developed Vivaldi antenna periodic dumbbell slots have been etched on both edges to reduce the antenna size and produce much better properties than the conventional one. The −10 dB impedance bandwidth extends from 69 to 250 MHz with 25% size reduction with average gain around 3.5 dBi using thin substrate. For thick substrate, the bandwidth extended from 50 to 500 MHz with 40% size reduction and average gain of about 4 dBi. Both simulation and experimental results show that the Vivaldi antennas have stable directional end fire radiation patterns, which are suitable for various ultra‐wideband applications. The effect of sandy soil, water layer, and the distance between sand surface and proposed antennas are also studied. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1801–1809, 2014

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Compact shape of vivaldi antenna for water detection using ground pentrating radar

Elsheakh

Abdallah

2014

Microw. Opt. Technol. Lett.

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“…Here we use Vivaldi antennas because of their favorable characteristics for STW application, and specifically they have relatively simple structure, light weight, small lateral dimensions, wideband, high efficiency, and high gain characteristics, they are excellent candidates for array applications. Theoretical and experimental analysis of Vivaldi antenna characteristics can be found in [3][4][5][6][7][8]. Variants of Vivaldi element have been documented [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Design of Compact Vivaldi Antenna Arrays for Uwb See Through Wall Applications

Yang¹,

Wang²,

Fathy³

2008

PIER

201

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Abstract-Two different types of Vivaldi antenna arrays have been designed for UWB see through wall applications. The first is a 16 × 1 antipodal Vivaldi antenna covering 8-12 GHz, and the second is an 8×1 tapered slot antenna for 2-4 GHz frequency range. The array elements are optimized to have a compact size and almost constant gain with frequency. Wilkinson power dividers were designed and fabricated to compose the feed network for the Vivaldi antenna arrays. Measured results of the manufactured antipodal and tapered slot Vivaldi antenna arrays are in excellent agreement with the simulated ones, with a gain of more than 13 dBi and 12 dBi respectively within their respective operating band. The first array is geared towards see through dry wall with high resolution, while the second is designed at lower frequencies to allow see through concrete wall applications. Full arrays were manufactured and connected to multi-throw switches and have been utilized as part of synthetic aperture radar.

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“…[6] investigated how different outer edge taper parameters affected the far-field performance, which shows that dual exponentially tapered slot antenna (DETSA) has excellent performance compared to an exponentially tapered slot antenna, such as higher directivity, narrower beamwidth, shorter size and lower cross polarization level. Both co-and cross-polarization radiated fields were discussed in [7] by using dyadic Green's functions. However, the bandwidth of the conventional Vivaldi tapered slot antenna is limited by the transition between the feed and the antenna slot [11,12].…”

Section: Introductionmentioning

confidence: 99%

“…Since Gibson presented the new structure of slotline antenna based on an exponentially tapered flare and described it as a class of frequencyindependent radiators, called as conventional Vivaldi tapered slot antennas [1], many literatures [2][3][4][5][6][7][8][9][10] have studied this type of antenna element. A few of investigations of single antenna with different shapes of the tapered slot were found in [2][3][4][5], including exponentially tapered slot, logarithmically tapered slot antenna (TSA), linearly tapered slot and constant width slot, which gave many empirical equations.…”

Section: Introductionmentioning

confidence: 99%

DESIGN OF MODIFIED 6-18 GHz BALANCED ANTIPODAL VIVALDI ANTENNA

Wang¹,

Zhang²,

Sun³

2012

PIER C

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Abstract-In this paper, a modified planar balanced Vivaldi antenna with endfire characteristics near the metal surface is proposed for 6-18 GHz applications. The proposed antenna structure consists of three copper layers, among which two external layers locate on the two outsides of two dielectric substrates, and the central layer is sandwiched by these two dielectric substrates. To further enhance the end-fire radiation characteristic, a number of novel techniques are proposed, including elongation and shaping of the supporting substrate of a conventional balanced antipodal Vivaldi antenna beyond its aperture, using an I-shaped slot loaded radiation patch and cutting a triangle on the edge of three copper layers. Measured and simulated results show that the proposed antenna not only exhibits good impedance bandwidth, but also improves the end-fire performance in the operational frequency of 6-10 GHz and achieves high gain in the end-fire direction, low cross-polarization and high front-to-back (F-to-B) ratio.

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Copolar and cross-polar radiation of Vivaldi antenna on dielectric substrate

Cited by 42 publications

References 11 publications

Compact shape of vivaldi antenna for water detection using ground pentrating radar

Compact shape of vivaldi antenna for water detection using ground pentrating radar

Design of Compact Vivaldi Antenna Arrays for Uwb See Through Wall Applications

DESIGN OF MODIFIED 6-18 GHz BALANCED ANTIPODAL VIVALDI ANTENNA

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