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Ka-band planar Vivaldi antenna with a core for high gain

Ka-band planar Vivaldi antenna with a core for high gain

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A planar Vivaldi antenna structure with a core element is proposed for high gain. Techniques to achieve a significant gain improvement over the full Ka (24–40 GHz) band are implemented; including a frequency-independent excitation method, the introduction of logarithmic ripple on the lateral edges and enclosing the antenna in a dielectric material.

References

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      • 7. Moosazadeh, M., Kharkovsky, S., Case, J.T., et al: ‘Improved radiation characteristics of small antipodal Vivaldi antenna for microwave and millimeter-wave imaging applications’, IEEE Antennas Wirel. Propag. Lett., 2017, 16, pp. 19611964.
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http://iet.metastore.ingenta.com/content/journals/10.1049/iet-map.2018.5834
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