Dual mode antipodal Vivaldi antenna

Natarajan, Rajesh; Kanagasabai, Malathi; Alsath, M. Gulam Nabi

doi:10.1049/iet-map.2015.0840

Cited by 9 publications

(4 citation statements)

References 19 publications

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“…Slots with variable capacitors or split-ring resonators are used to design re-configurable AVA for rejecting unwanted bands in [58], [59]. Dual-band AVA by using two wide rectangular slots is given in [60]. Slots with substrate elongation are used to increase end-fire radiation characteristics of balanced AVA [54].…”

Section: Slotsmentioning

confidence: 99%

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: Slotsmentioning

confidence: 99%

A Survey of Performance Enhancement Techniques of Antipodal Vivaldi Antenna

2020

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“…A dual-mode AVA is presented in [72]. In this design, the antenna operates in wideband and narrowband modes, as shown in Fig.…”

Section: Vivaldi Antenna With Special Structuresmentioning

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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“…Frequency recon guration is typically accomplished by means of lumped elements, such as PIN diodes and MEMS switches, in a particular location to monitor the distribution of current [15][16]. The slot antenna's various designs are presented in [17,18].The proposed dual mode antipodal Vivaldi antenna is designed by the introduction of rectangular slots to operate in ultra-wide band and two narrow bands [19].With the ground plane input change and placing a slot resonator on ground plane will provides a customized ultra wide band AVA [20]. By adding the lumped elements in the proposed miniaturized Vivaldi antenna will enhance impedance features [21].…”

Section: Introductionmentioning

confidence: 99%

Design of Dual Mode AVA with Enhanced Radiation Characteristics

Sathishkumar¹,

Nandalal²,

Natarajan³

2021

Preprint

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Dual mode antipodal Vivaldi antenna (AVA) with narrowband to wideband switching is proposed in this work. The antenna has the footprint of 60 mm x 40 mm x 1.6 mm and FR-4 substrate used for fabrication. The antenna exhibits 8.3 GHz bandwidth in wideband mode with a peak gain of 6.9 dBi and 1.6 GHz bandwidth in narrowband mode with a peak gain of 7 dBi. The simulations are performed using CST full wave simulator and the results are compared with the reference antenna of the same dimensions. PIN diodes are implemented to achieve the frequency switching. The working principle of the antenna is explained through simulation and verified through measurements.

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Dual mode antipodal Vivaldi antenna

Cited by 9 publications

References 19 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

Design of Dual Mode AVA with Enhanced Radiation Characteristics

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