High-Gain Dielectric-Loaded Vivaldi Antenna for K -Band Applications

In this letter, a novel concept of a high-gain Vivaldi antenna operating in the K a frequency band is proposed. The antenna is fed by the substrate integrated waveguide. The concept overcomes shortcomings of conventional antipodal Vivaldi antenna using dielectric load with printed metal transition a...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2016, Vol.15, p.2004-2007
Main Authors: Puskely, Jan, Lacik, Jaroslav, Raida, Zbynek, Arthaber, Holger
Format: Article
Language:English
Subjects:
<named-content xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" content-type="math" xlink:type="simple"> <inline-formula> <tex-math notation="LaTeX"> K_{a}</tex-math> </inline-formula> </named-content> frequency band
Antenna measurements
Antenna radiation patterns
Antennas
Antipodal Vivaldi antenna
Cross polarization
dielectric load
Dielectrics
Frequencies
Gain
Gratings
High gain
printed transition
Substrate integrated waveguides
substrate-integrated waveguide (SIW)
Vivaldi antennas
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Description
Summary:In this letter, a novel concept of a high-gain Vivaldi antenna operating in the K a frequency band is proposed. The antenna is fed by the substrate integrated waveguide. The concept overcomes shortcomings of conventional antipodal Vivaldi antenna using dielectric load with printed metal transition and transverse ripples. The added parts are optimized to obtain a wideband high-gain antenna with low cross polarization. The fabricated antenna shows very good performance over the entire K a band where the measured gain is more than 10.5 dBi.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2016.2550658