A Ka-Band Cylindrical Paneled Reflectarray Antenna

被引：6

作者：

Greco, Francesco ^{[1
]}

Boccia, Luigi ^{[1
]}

Arnieri, Emilio ^{[1
]}

Amendola, Giandomenico ^{[1
]}

机构：

[1] Univ Calabria, DIMES Dept Comp Modeling Elect & Syst Engn, I-87036 Arcavacata Di Rende, CS, Italy

来源：

ELECTRONICS | 2019年 / 8卷 / 06期

关键词：

reflectarray; Ka-band; reflector antennas; DESIGN; EFFICIENCY;

D O I：

10.3390/electronics8060654

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Cylindrical parabolic reflectors have been widely used in those applications requiring high gain antennas. Their design is dictated by the geometric relation of the parabola, which relate the feed location, f, to the radiating aperture, D. In this work, the use of reflectarrays is proposed to increase D without changing the feed location. In the proposed approach, the reflecting surface is loaded with dielectric panels where the phase of the reflected field is controlled using continuous metal strips of variable widths. This solution is enabled by the cylindrical symmetry and, with respect to rectangular patches or to other discrete antennas, it provides increased gain. The proposed concept has been evaluated by designing a Ka-band antenna operating in the Rx SatCom band (19-21 GHz). A prototype has been designed and the results compared with the ones of a parabolic cylindrical reflector using the same feed architecture. Simulated results have shown how this type of antenna can provide higher gain in comparison to the parabolic counterpart, reaching a radiation efficiency of 65%.

引用

页数：8

共 15 条

[1] Hybrid waveguide-stripline feeding network for dual polarised arrays at K band [J].