Broadband Circularly Polarized Cavity-backed Antenna

被引：0
|
作者：
Joseph, Ronald [1 ]
Nakao, Syuhei [1 ]
Fukusako, Takeshi [1 ]
机构：
[1] Kumamoto Univ, Dept Comp Sci & Elect Engn, Kumamoto 8608555, Japan
来源：
TENCON 2010: 2010 IEEE REGION 10 CONFERENCE | 2010年
关键词：
circularpolarization; cavity; separated L-probes; broadband characteristics;
D O I：
10.1109/TENCON.2010.5686682
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：
The design and experimental investigation of a circularly polarized antenna with circular slot for broadband characteristics is proposed. The horizontal and vertical probes of the L-shaped probe, which is a key element to generate circular polarization, are separated in the structure, contrary to the concept of having joined probes. Another novelty of placing stubs in the slot, which are attached to the ground plane, is proposed to improve the axial ratio (AR) characteristics of the antenna by around 10%. Unidirectional patterns can be obtained by having a cavity of height lambda(g)/4 behind the antenna and is effective when no stubs are placed in the slot.
引用
收藏
页码：426 / 430
页数：5
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