Analysis and Design of Novel Directional Ultra Wide-band Antennas
Ultra wide-band is one of the hottest issues in the current researches on antennas. The circular monopole antenna isA kind of ultra wide-band antennas with simple structure.FirstlyA novel antenna was researched. Four circular disc monopoles were placed across each other. They were considered as the feedings,and the reflection plane was planar. It could achieve dual polarization characteristics. On this basis,further study was applied to two other novel antennas. The first was changing the planar reflector to parabolic one,and the purpose was to realize wide beam,high gain and directed radiation characteristic. The other was changing the circular disc shape,and the purpose was to realize wider lower frequency bandwidth.The novel antennas were theoretic analyzed,and the Sparameter and radiation patterns of the antennas were discussed by electromagnetism simulation software. The analytic results verify that the characteristic of the traditional monopole antenna is effective improved by the novel antennas. Dual-polarization,high gain,wide beam and directed radiation characteristics of the antenna are realized. The novel antennas are suitable for the satellite and mobile communication systems with good prospects.
Ultra wide-band antenna Circular monopole antenna Directional antenna Dual polarization Wide-beam
Zhong Lingling Qiu Jinghui Zhang Ning Sun Bo
Dept.Electronics and Communication Engineering,Harbin Institute of Technology,Harbin 150001,China
国际会议
2008 International Conference on Microwave and Millimeter Wave Technology(2008国际微波毫米波技术会议)
南京
英文
1658-1661
2008-04-21（万方平台首次上网日期，不代表论文的发表时间）