X-band circular ring-slot antenna embedded in single-layered SIW for circular polarisation
X-band circular ring-slot antenna embedded in single-layered SIW for circular polarisation
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DOI：
10.1049/el.2009.0901
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发表时间：
2009-06
影响因子：
1.1
通讯作者：
Dong-yeon Kim;Jaewook Lee;C. Cho;Taek-Kyung Lee
中科院分区：
文献类型：
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作者：
Dong-yeon Kim;Jaewook Lee;C. Cho;Taek-Kyung Lee
提出了一种用于单层制作右手圆极化(RHCP)的圆极化天线，该天线具有基片集成波导、腔背谐振器和常规环形缝隙天线等新型馈电结构。CP的产生和宽带阻抗匹配特性分别通过在顶部贴片和底部地平面之间使用简单的短路通孔和在输入端口插入电感通孔阵列来实现。在电压驻波比小于2：1，轴比小于-3d B的情况下，获得了18.74%的宽带阻抗带宽和2.3%的RHCP轴比。
A circularly-polarised antenna which has a novel feeding structure like a substrate integrated waveguide, a cavity-backed resonator and a conventional ring-slot antenna is proposed for right-handed circular polarisation (RHCP) in a single-layered fabrication. The CP generation and broadband impedance matching characteristics are accomplished by using a simple shorting via between the top patch and bottom ground plane and inserting inductive via arrays at the input port, respectively. A broadband impedance bandwidth of 18.74% and a RHCP axial ratio of 2.3% have been obtained under the condition of less than VSWR 2:1 and axial ratio -3 dB, respectively.