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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Proceedings ArticleDOI
Dispersion Characterization of a UWB Vivaldi Antenna in Time and Frequency Domain
TL;DR: In this article, a Vivaldi antenna for ultra-wideband application with complete dispersion analysis has been investigated and the measured return loss shows the antenna has an impedance bandwidth from 1.45 GHz to 5.35 GHz.
Proceedings ArticleDOI
A Modified Leaf Shaped Antipodal Vivaldi Antenna for UWB with WLAN Band-Notched Characteristics
TL;DR: In this paper, a modified leaf shaped antipodal Vivaldi antenna for UWB (3.1-10.6 GHz) and band-notched characteristics for WLAN (5.15-5.725 GHz) applications, with the help of EBG structures in the form of square split ring resonators (SSRR).
Proceedings ArticleDOI
A low-profile ultra-wideband directional antenna
TL;DR: In this paper, a disc-shaped combined dipole was used as a feed and a rectangular metal plate with right angle bend was employed as a reflector to reduce the profile of the ultrawideband directional antenna.
Book ChapterDOI
Comb-Shaped Slit Antipodal Vivaldi Antenna and Its Application for Detection of Void Inside Concrete Specimens
TL;DR: In this paper, an antipodal Vivaldi antenna (AVA) with high gain at low frequencies was proposed for UWB imaging for the purpose of the detection of voids inside a concrete beam.
Journal ArticleDOI
Wideband Vivaldi Antenna for Reduced Radar Cross Section in Stealth Applications
TL;DR: An unaccustomed reduced radar cross section (RRCS) design of an antipodal Vivaldi antenna (AVA) for stealth applications that operate over 4−20 GHz is investigated in this article.
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.