Aperture efficiency improvement of folded reflectarray using rectangle and split-ring combined element

In this Letter, the aperture efficiency of a folded reflectarray is improved using a proposed element. This element is designed with a simple structure using a rectangle and split-ring combined structure to obtain a more accurate reflection phase for the folded reflectarray than that of a convention...

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Bibliographic Details
Published in:Electronics letters 2018-06, Vol.54 (13), p.797-798
Main Authors: Jeong, J.G, Park, N.J, Yoon, Y.J
Format: Article
Language:English
Subjects:
antenna radiation patterns
Antennas and propagation
aperture antennas
aperture efficiency improvement
element design concept
folded reflectarray
frequency 77.0 GHz
high aperture efficiency
millimetre wave antenna arrays
millimetre wave frequency
rectangle ring combined structure
rectangle‐split‐ring combined element
reflectarray antennas
reflection phase
split‐ring combined structure
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Summary:In this Letter, the aperture efficiency of a folded reflectarray is improved using a proposed element. This element is designed with a simple structure using a rectangle and split-ring combined structure to obtain a more accurate reflection phase for the folded reflectarray than that of a conventional element in the millimetre wave frequency. Thus, a high aperture efficiency of 55.04% is obtained at 77 GHz. The element design concept and procedure are presented in detail.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2018.1194