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

© The Institution of Engineering and Technology
Received 30/09/2018, Accepted 25/03/2019, Revised 11/03/2019, Published 26/03/2019

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.

Inspec keywords: planar antennas; microwave antennas; antenna radiation patterns; millimetre wave antennas; dielectric materials

Other keywords: frequency 24.0 GHz to 40.0 GHz; dielectric material; planar Vivaldi antenna structure; gain improvement; Ka-band planar Vivaldi antenna; lateral edges; core element; logarithmic ripple; frequency-independent excitation method

Subjects: Single antennas

References

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http://iet.metastore.ingenta.com/content/journals/10.1049/iet-map.2018.5834
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