A Wideband Slotted Spherical Waveguide Antenna Based on Multi-Mode Concept

被引：1
|
作者：
Bi, Xiaokun [1 ]
Guo, Shaohua [2 ]
Zhu, Yujian [1 ]
Yuan, Tao [1 ,3 ]
机构：
[1] Shenzhen Univ, Coll Elect & Informat Engn, Shenzhen 518060, Peoples R China
[2] Zhengzhou Univ, Sch Water Conservancy & Environm, Zhengzhou 450001, Peoples R China
[3] Shenzhen Univ, Coll Elect & Informat Engn, ATR Natl Key Lab Def Technol, Shenzhen 518060, Peoples R China
来源：
ELECTRONICS | 2020年 / 9卷 / 10期
关键词：
wideband; slotted waveguide antenna; multi-mode concept; three-dimensional (3D) printing; ARRAY ANTENNA; DESIGN; FABRICATION; NETWORK;
D O I：
10.3390/electronics9101656
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A wideband slotted spherical waveguide antenna based on the multi-mode concept is presented. The proposed design starts from a metallized spherical cavity fed by a rectangular waveguide. Then, two groups of slots are symmetrically cut on the shell. By suitably choosing the slot dimensions and locations, four radiation modes can be excited in a single radiator and merged with each other, resulting in a wideband radiation characteristic. To verify this, a prototype is designed and fabricated using stereolithography apparatus to achieve a light weight. As the measured fractional bandwidth (FBW) of the proposed antenna can be increased to 70.1% while maintaining stable radiation patterns and high gain, a simple and effective design of wideband slotted waveguide antennas with good radiation characteristics can be validated.
引用
收藏
页码：1 / 11
页数：11
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