3-D Printed Monolithic GRIN Dielectric-Loaded Double-Ridged Horn Antennas

被引：28
|
作者：
Hoel, Karina V. [1 ]
Ignatenko, Maxim [2 ]
Kristoffersen, Stein [1 ]
Lier, Erik [3 ]
Filipovic, Dejan S. [2 ]
机构：
[1] Norwegian Def Res Estab FFI, N-2007 Kjeller, Norway
[2] Univ Colorado, Antenna Res Grp, Dept Elect Comp & Energy Engn, Boulder, CO 80309 USA
[3] Lockheed Martin Space, Denver, CO 80125 USA
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2020年 / 68卷 / 01期
关键词：
Loading; Permittivity; Dielectrics; Horn antennas; Loaded antennas; Fabrication; Apertures; 3-D printed; broadband; copper plating; dielectric loading; gradient index (GRIN); horns; monolithic; selective laser sintering (SLS); sidelobes; LUNEBURG LENS; FEED; DESIGN;
D O I：
10.1109/TAP.2019.2938563
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Monolithic integration of 3-D printed gradient index (GRIN) dielectric loading with a double-ridged rectangular horn standard gain horn (SGH) and its impact on antenna performance are demonstrated. Results show that the GRIN loaded horns improve sidelobe levels (SLLs) and beam symmetry, while maintaining good impedance match and relatively high radiation efficiency over more than an octave bandwidth from 7.5 to 18 GHz. Moreover, they have low weight and show good robustness to fabrication imperfections. This work paves the way for seamless integration of complex wideband antennas in 3-D printed systems such as unmanned aerial vehicles (UAVs).
引用
收藏
页码：533 / 539
页数：7
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