西安电子科技大学学报（自然科学版）2018，Vol.45Issue(3)：175-180,6.DOI:10.3969/j.issn.1001-2400.2018.03.030
一种S频段卫星通信相控阵天线设计
Design of a satellite communication phased array antenna in the S-band
摘要
Abstract
The phased array antenna for satellite communication has a smaller beam-scanning angel and a lower gain at the low elevation angel at present.A circularly polarized (CP) antenna element with a wide beam-width in the S-band is proposed.To enhance the realized gain at a low elevation angel,this element is adopted with the dual-layer micro-strip structure and loads a circular metal cavity.Based on the element,a phased array antenna composed of 24 antenna units is designed,which has a water-drop form to reduce wind resistance.The simulated results show that over the transmitting and the receiving frequency band,the voltage standing wave ratio(VSWR)of this element is less than 1.3,that the axial ratio(AR)is less than 3 dB,and that 3 dB beam-width of the element is about 120°in the array;the realized gain of the array is declined about 4 dB when the scanning angle is approaching 65°.Later,the measured results of the manufactured array antenna present a good consistency with the simulated results.It possesses a wide scanning angle and a high realized gain at low elevation angel,which satisfies the design requirement.关键词
卫星通信/相控阵/波束扫描/圆极化/水滴状Key words
satellite communication/phased array/beam scanning/circularly polarized/water-drop form分类
信息技术与安全科学引用本文复制引用
郭超,赵春柳,鄢泽洪,张天龄..一种S频段卫星通信相控阵天线设计[J].西安电子科技大学学报（自然科学版）,2018,45(3):175-180,6.基金项目
国家自然科学基金资助项目(61401339) （61401339）
