Improved Double-Ridge Horn Antenna With Microstrip Feed Line and Fork-Shaped Dielectric Plate

被引：0
|
作者：
Guo, Shi Yu [1 ]
Chen, Zhi Qiang [1 ]
Ye, Da Gui [1 ]
Ye, Liang Hua [1 ]
Shi, Xinrong [2 ]
机构：
[1] Guangdong Univ Technol, Sch Phys & Optoelect Engn, Guangzhou, Peoples R China
[2] Guangdong Inst Metrol, Guangzhou, Peoples R China
来源：
INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS | 2025年 / 38卷 / 03期
关键词：
double-ridge horn antenna; high gain; ultrawideband antenna; ANTIPODAL VIVALDI ANTENNA; GAIN; DESIGN; SIMULATION;
D O I：
10.1002/dac.6112
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：
An ultrawideband double-ridge horn (DRH) antenna having a high gain and excellent impedance matching is presented. Two metal reflectors are perpendicular to the two ridges for improving the lower- and center-frequency gain, while two sets of metallic gird sidewalls are used to fix the two reflectors together for structural stability and further increase the lower frequency gain. Additionally, a fork-shaped dielectric plate, which is fixed between the ridges, is used to improve the higher frequency gain. To improve the impedance matching at 1-18 GHz, a microstrip line having a smoothly tapered ground plane is employed to feed the DRH antenna. Good impedance matching for VSWR < 1.85 and high gain ranging from 7.6 to 18.6 dBi are obtained for the designed DRH antenna.
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页数：9
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