Modified S-Band Satellite Antenna With Isoflux Pattern and Circularly Polarized Wide Beamwidth

被引:58
作者
Choi, Eun-cheol [1 ]
Lee, Jae W. [1 ]
Lee, Taek-Kyung [1 ]
机构
[1] Korea Aerosp Univ, Sch Elect Telecommun & Comp Engn, Goyang 412791, South Korea
来源
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2013年 / 12卷
关键词
Circular polarization (CP); isoflux pattern; telemetry; tracking; and command (TT&C); turnstile antenna; MICROSTRIP ANTENNA;
D O I
10.1109/LAWP.2013.2285231
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
A modified isoflux pattern antenna suitable for S-band satellite communication is introduced and investigated with respect to its beam pattern and axial ratios. For uniform coverage over the Earth's surface, an isoflux pattern antenna is required because of its uniform power density over a wide coverage area. A final optimization for the parameter values is carried out from the parametric studies of the antenna, and a simple analysis of the combination of horizontal dipoles and vertically attached top-hat elements is also carried out. The electrical performances of the proposed antenna are verified in terms of the reflection coefficients, radiation pattern, and axial ratios according to a wide beamwidth rather than at a fixed observation angle such as a 0 main beam direction.
引用
收藏
页码:1319 / 1322
页数:4
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