NDLI: Charateristics of decade-bandwidth, Balanced Antipodal Vivaldi Antenna (BAVA) phased arrays with time-delay beamformer systems

Content Provider	IEEE Xplore Digital Library
Author	Elsallal, W. West, J.B. Wolf, J. Freeman, R. Legge, R. Olen, V. Darymple, T.W. Longbrake, M.B. Buxa, P.E.
Copyright Year	2013
Description	Author affiliation: Air Force Res. Lab., Wright-Patterson AFB, OH, USA (Darymple, T.W.; Longbrake, M.B.; Buxa, P.E.) \|\| Rockwell Collins, Cedar Rapids, IA, USA (Elsallal, W.; West, J.B.; Wolf, J.; Freeman, R.; Legge, R.; Olen, V.)
Abstract	The first part of this paper presents measured performance of the Balanced Antipodal Vivaldi Antenna (BAVA) with U-shaped metallic channels. This new BAVA array is dual polarized with decade bandwidth and wide scan volume. Its depth is half-wavelength at the highest frequency of operation. It can be constructed as modular individual BAVA elements or as a subarray with integrated transmitter / receiver (T/R) modules. This is a unique feature that reduces manufacturing complexity and the cost of field repair. The second part of this paper overviews performance of the BAVA array scanned at wide scan angles using AFRL's Transformational Element Level Array (TELA) Time-Delay Units between 2 GHz to 8 GHz and using fixed delay lines between 2 GHz to 18 GHz. The authors offer guidelines for minimum aperture size to realize decade bandwidth beam scan performance without beam squinting at the lower end of the frequency band.
Starting Page	111
Ending Page	116
File Size	982646
Page Count	6
File Format	PDF
DOI	10.1109/ARRAY.2013.6731811
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-10-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Finite element analysis Wideband Polarization Vivaldi antennas Antenna arrays Delays Beam-squint Vivaldi Balanced Antipodal Vivaldi Antenna Electronically Scanned Arrays True-time delay Beamformer Dual-Polarized Cross-Polarization
Content Type	Text
Resource Type	Article

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