Wideband Balanced Antipodal Vivaldi Antenna With Enhanced Radiation Parameters

Li, Li; Xia, Xin‐Lin; Liu, Yu; Yang, and Tao

doi:10.2528/pierc16051704

Cited by 6 publications

(6 citation statements)

References 17 publications

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“…Research on AVA shows that AVA flares can be designed with different shapes like Chebyshev [33], wide elliptical [34], leaf structure [35], binomial [36], fractal [37], etc. to enhance the performance of an antenna.…”

Section: Performance Enhancement Techniques For Avamentioning

confidence: 99%

“…BAVA with transformation optics is used in [14] to improve the gain, sidelobe level, and cross-polarization. Antenna gain and beam tilting can be improved by using BAVA and patch in between two flares of BAVA [36]. A noticeable reduction in beam squint can be achieved by eliminating substrate in between two metal flares [11].…”

Section: G Balanced Antipodal Vivaldi Antenna (Bava)mentioning

confidence: 99%

“…Table 7 lists the performance comparison of BAVA design. BAVA with improved return loss and bandwidth is implemented in [36]. Moreover, a compact BAVA is implemented in [11] by introducing corrugation in it.…”

Section: G Balanced Antipodal Vivaldi Antenna (Bava)mentioning

confidence: 99%

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A Survey of Performance Enhancement Techniques of Antipodal Vivaldi Antenna

2020

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The increasing proliferation of advanced devices for UWB, 5G communication, micrometerwave, and millimeter-wave communication demands an antenna which can handle huge data rates, provides high gain and stable radiation pattern as a panacea of most of the current wireless communication problems. Many different antenna designs have been proposed by the researchers but, Antipodal Vivaldi Antenna (AVA) has drawn the attention of most of the researchers because of its high gain, wide bandwidth, less radiation loss, and stable radiation pattern. Different methods are presented to make AVA more compact while maintaining the performance of an antenna to an acceptable level. These different methods are substrate choice, flare shape, slots, and feeding connectors. Also, AVA performance can be enhanced by incorporating corrugation, dielectric lens, patch in between two flares of AVA, balanced AVA (BAVA), metamaterial, computational intelligence (CI), and AVA array. The AVA performance enhancement techniques modify the electrical and physical properties of an antenna which in turn improves its performance. A large number of performance enhancement methods of AVA design have been proposed, however, no comprehensive study exists to categorize these performance enhancement techniques and outline their concepts, advantages, disadvantages, and applications. So, in this paper, we have attempted to outline all methods available for enhancing and optimizing the parameters of AVA. Additionally, to validate some of the important performance enhancement methods, they are incorporated in the basic conventional AVA design and further simulation results are obtained for the same which are in line with the surveyed literature. Each method is explained in detail by incorporating its key points, merits, and demerits. Moreover, illustrations from the literature are given to demonstrate improvement in the parameters as a result of applying a particular performance enhancement technique. INDEX TERMS Antipodal Vivaldi antenna (AVA), AVA array, balanced antipodal Vivaldi antenna (BAVA), corrugations, dielectric lens, metamaterial, parasitic patch, slots.

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Section: Performance Enhancement Techniques For Avamentioning

confidence: 99%

Section: G Balanced Antipodal Vivaldi Antenna (Bava)mentioning

confidence: 99%

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A Survey of Performance Enhancement Techniques of Antipodal Vivaldi Antenna

2020

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“…In [27], BAVA with transformation optics is used to enhance the gain, sidelobe level, and cross-polarization. Antenna gain and beam tilting can be refined by introducing a patch in between two flares of a BAVA, as seen in [28]. In [29], the beam squint can be lowered prominently by eliminating substrate in between two copper flares of the BAVA.…”

Section: Balanced and Unbalanced Avamentioning

confidence: 99%

Vivaldi antennas: a historical review and current state of art

Bhattacharjee

Bhawal

Karmakar

et al. 2020

Int. J. Microw. Wireless Technol.

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The progressions in the field of wireless technology can be highly attributed to the development of antennas, which can access high data rates, provide significant gain and uniform radiation characteristics. One such antenna called the Vivaldi antenna has attracted the utmost attention of the researchers owing to its high gain, wide bandwidth, low cross-polarization, and stable radiation characteristics. Over the years, different procedures have been proposed by several researchers to improve the performance of the Vivaldi antennas. Some of these different approaches are feeding mechanisms, integration of slots, dielectric substrate selection, and radiator shape. Correspondingly, the performance of a Vivaldi antenna can be increased by including dielectric lens, parasitic patch in between two radiators, corrugations, as well as metamaterials. This paper gives a systematic identification, location, and analysis of a large number of performance enhancement methods of Vivaldi antenna design depicting their concepts, advantages, drawbacks, and applications. The principal emphasis of this article is to offer an outline of the developments in the design of Vivaldi antennas over the last few years, where the most important offerings, mostly from IEEE publications, have been emphasized. This review work aims to reveal a promising path to antenna researchers for its advancement using Vivaldi antennas.

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“…A technique is based on adding a metal director in the front of the flaring of the Vivaldi [23]. This technique is used to increase the antenna gain up to 14.6 dBi in the frequency band from 2 to 40 GHz.…”

mentioning

confidence: 99%

Gain Enhancement of a Millimeter Wave Antipodal Vivaldi Antenna by Epsilon-Near-Zero Metamaterial

El-Nady¹,

Zamel²,

Hendy³

et al. 2018

PIER C

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Abstract-In this paper a compact antipodal Vivaldi antenna with dimensions of 40 × 85 mm 2 for Ka band is presented. To enhance the antenna gain epsilon near zero metamaterial (ENZ) unit cells are embedded at the same plane of the Vivaldi flare aperture. These ENZ unit cells have the advantage of confining the radiated fields with additional compact size. The obtained antenna exhibits an ultra-wide bandwidth from 23 GHz to 40 GHz with a reflection coefficient less than −10 dB. This is suitable for 5G applications at both 28 and 38 GHz. The antenna gain in this frequency band is found in the range from 14 to 17.2 dBi. The proposed antenna is designed by using CST-MW Studio, and the results are verified with experimental measurements.

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Wideband Balanced Antipodal Vivaldi Antenna With Enhanced Radiation Parameters

Cited by 6 publications

References 17 publications

A Survey of Performance Enhancement Techniques of Antipodal Vivaldi Antenna

A Survey of Performance Enhancement Techniques of Antipodal Vivaldi Antenna

Vivaldi antennas: a historical review and current state of art

Gain Enhancement of a Millimeter Wave Antipodal Vivaldi Antenna by Epsilon-Near-Zero Metamaterial

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