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
Parametric Analysis and Bandwidth Optimisation of Hybrid Linear-exponential Tapered Slot Vivaldi Antennas
TL;DR: It was observed that the hybrid tapered slot can extend the lower frequency limit of the antipodal Vivaldi antenna however with slight deterioration of the gain and E-plane radiation pattern.
Journal ArticleDOI
Single-Ended Band-Notched Vivaldi Antenna With Common Mode Suppression and Low Cross Polarization
Huanhuan Qi,Haiwen Liu +1 more
TL;DR: In this article, a differential-fed band-notched Vivaldi antenna with common-mode suppression and low cross-polarization is proposed, which can radiate effectively with a broadside beam.
Proceedings ArticleDOI
A miniaturized Antipodal Vivaldi Antenna with director for ultra-wide-band applications
TL;DR: A planar Antipodal Vivaldi Antenna (AVA) with a director for ultra-wideband (UWB) applications is proposed in this paper, which guides electromagnetic waves emitted from the aperture of the antenna to the edge of the conductive director with a small reflection and good transmission characteristics compared to the traditional AVAs.
Journal ArticleDOI
Design and Validation of an Antipodal Vivaldi Antenna with Additional Slots
TL;DR: In this paper, an improved shape of Antipodal Vivaldi Antenna from the normal schematic structure is introduced, which yields a high radiation gain, and the results of the desired antenna were simulated through extensive simulations performed in CST Microwave Studio®.
Journal ArticleDOI
Antipodal Vivaldi antenna with novel differentially fed structure for lowering cross-polarisation level
TL;DR: In this paper, a differentially fed double-slot structure with two metal layers is proposed for an antipodal Vivaldi antenna, where the slots can have their E-field vectors summed to an e-field vector parallel to the layers.
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.