|Table of Contents|

A Design of Windmill-Shaped Element Reflectarry Antenna(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2019年02期
Page:
81-86
Research Field:
·物理学·
Publishing date:

Info

Title:
A Design of Windmill-Shaped Element Reflectarry Antenna
Author(s):
Ma Yu; Zhang Hao; Liu Ting; Zhang Haifeng
College of Electronic and Optical Engineering & College of Microelectronics,Nanjing University of Postsand Telecommunications,Nanjing 210023,China
Keywords:
reflectarry antenna; phase compensation; solid plasma; tunable; matching layer
PACS:
O441.4
DOI:
10.3969/j.issn.1001-4616.2019.02.013
Abstract:
In order to improve the linearity of the phase shift curve of the reflective array unit and extend the coverage of the phase compensation,a new type of reflective array unit is adopted,i.e.,a layer of dielectric matching layer is added over the conventional reflective array unit. The simulation results show that compared with the traditional design method,the linearity of the phase shift curve of the new type of reflective array unit is significantly improved,and the phase compensation achieves a completely coverage of 0°～360°. We use the solid plasma to replace the metal,which is realized by GaAs. Therefore,a reflectarry antennas with dynamic beam scanning were designed based on the the reconfigurable properties of solid plasma. The directions of the reflected main beams can concentrate on 15°,20°,and 25°,respectively,which are expected,and each antenna’s side lobe and main lobe are at least 10dB different. By dynamically adjusting the excitation state of the solid plasma,i.e.,changing the excitation state of the resonance unit,space beam scanning can be achieved.

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Last Update: 2019-06-30