Gain Enhancement of Circularly Polarized Slender Antenna Using a Wider Helical Element
This paper presents a gain enhancement of a small circularly polarized(CP),slender helical antennas with a wider of helical line in a limit space.The gain of helical element is increased to 0 dBic,which is higher by 6 dB than previous study.The antenna can generate circular polarization in the normal direction to the helical axis.A number of conventional circularly polarized antennas have roughly a square or circular shape for generating two orthogonal,linearly polarized modes of equal amplitude with a phase difference of 90°.The slender sharp antenna is novel and convenient for installation in some devices.The measured and simulated characteristics of the antenna are in good agreement.Furthermore,in order to apply the antenna to small handset devices,the antenna is installed on a large ground plane(60mm×40mm)to discuss the effect of the ground,since the AR is affected by the radiation from both the antenna element and the large ground plane.Such planar and slender shaped antenna is useful to be installed in handsets or used as RFID tags.
Ye Zhang Takeshi Fukusako
Department of Computer Science & Electrical Engineering,Kumamoto University,Japan
国际会议
Progress in Electromagnetics Research Symposium 2013(2013年电磁学研究新进展学术研讨会)
台北
英文
225-227
2013-03-01（万方平台首次上网日期，不代表论文的发表时间）