Journal ArticleDOI
Modified antipodal Vivaldi antenna for ultra-wideband communications
Rajesh Natarajan,Jithila V. George,Malathi Kanagasabai,Livya Lawrance,Balaji Moorthy,Dinesh Babu Rajendran,Mohammed Gulam Nabi Alsath +6 more
TLDR
In this article, a modified antipodal Vivaldi antenna (AVA) with low cross-polarisation is proposed for ultra-wideband communications, where the bandwidth offered by conventional single petal AVA is enhanced by adding another petal.Abstract:
In this study, a modified antipodal Vivaldi antenna (AVA) with low cross-polarisation is proposed for ultra-wideband communications. The bandwidth offered by conventional single petal AVA is enhanced by adding another petal. This dual petal antenna occupies a small volume of 60 × 60 × 0.8 mm
3
and provides operating bandwidth from 2.4 GHz to frequencies >14 GHz. The proposed antenna configuration provides low cross-polarisation level which is 5 dB and an average group delay variation of 0.5 ns. The prototype antenna is fabricated and tested to validate the simulation results.read more
Citations
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Journal ArticleDOI
Radiation Pattern Analysis and Modelling of Coplanar Vivaldi Antenna Element for Linear Array Pattern Evaluation
TL;DR: In this paper, an electric field approximation model of the Coplanar Vivaldi antenna on the Eplane is presented, which is useful for total array pattern analysis to save computation time and to provide flexibility in the evaluation of array design.
Proceedings ArticleDOI
Total array pattern characteristics of coplanar vivaldi antenna in E-plane with different element width for S and C band application
TL;DR: In this paper, the authors presented the total array pattern of Co-planar Vivaldi antenna as influenced by the element width each element is designed with the same length but different widths It can improve main lobe and side lobe level performance at center and higher frequency if it compared to array with same width of elements.
Proceedings ArticleDOI
Modified Antipodal Vivaldi Antenna with Elliptical and Sinusoidal-Shaped Loads
Xiaoyan Li,Yi Zhang +1 more
TL;DR: In this paper, the authors proposed a novel method of designing an ultra-wideband Antipodal Vivaldi Antenna with Elliptical and Sinusoidal-shaped Loads, which shows better performance at low cut-off frequency in terms of return loss and gain throughout a bandwidth from 800MHz to 20GHz.
Proceedings ArticleDOI
Metamatrial-based Antipodal Vivaldi Wearable UWB Antenna for IoT and 5G Applications
Tale Saeidi,Idris Ismail,Sarmad Nozad Mahmood,Sameer Alani,Shahid M. Ali,Adam R. H. Alhawari +5 more
TL;DR: An antipodal Vivaldi metamaterial-based flexible wearable ultrawideband (UWB) antenna for sub-6G, internet of things (IoT), and wireless body area network (WBAN) applications working at the range of 4-35 GHz is presented.
Journal ArticleDOI
Binomial stub loaded compact Vivaldi antenna for superwideband applications
Abhik Gorai,Rowdra Ghatak +1 more
TL;DR: In this paper, a compact antipodal Vivaldi antenna with super wideband characteristics is presented for improved matching of input impedance at lower frequency region, techniques like binomial tapering of outer edges, binomial slit loaded outer edge, and protruded binomial tapered stub loading have been adopted.
References
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Proceedings ArticleDOI
The Vivaldi Aerial
TL;DR: The Vivaldi Aerial is a new member of the class of aperiodic continuously scaled antenna structures and, as such, it has theoretically unlimited instantaneous frequency bandwidth as discussed by the authors, and can be made to conform to a constant gain vs. frequency performance.
Journal ArticleDOI
Improved design of the Vivaldi antenna
TL;DR: In this paper, a tapered transition from microstrip to symmetric double sided slot line, fabricated on a low dielectric constant substrate, exhibits a very wide operating frequency range, with no need for a shorting hole.
Journal ArticleDOI
Endfire tapered slot antennas on dielectric substrates
TL;DR: In this article, a good general agreement is obtained for curves of beamwidth versus length, normalized to wavelength, when one compares the data with that for traveling-wave antennas published by Zucker.
Book
Ultra-Wideband Antennas and Propagation: For Communications, Radar and Imaging
TL;DR: The UWB Antenna Elements for Consumer Electronic Applications (Dirk Manteuffel) and its Applications, Operating Scenarios and Standardisation, and Numerical Modelling and Extraction of the UWB Characterisation are studied.
Journal ArticleDOI
Microstrip Patch Antenna With Defected Ground Structure for Cross Polarization Suppression
TL;DR: In this article, a defected ground structure (DGS) pattern is proposed to reduce the cross-polarized (XP) radiation of a microstrip patch antenna, which is simple and easy to etch on a commercial microstrip substrate.