现代电子技术2025，Vol.48Issue(9)：54-61,8.DOI:10.16652/j.issn.1004-373x.2025.09.009
面向低轨卫星的螺旋天线及其阵列设计
Design of spiral antenna and array for low earth orbit satellites
郭萌 1董妮妮 1高峰 1齐娜娜 1陈璐 1贺畅 1陈天夫 1刘鹏1
作者信息
- 1. 西安航天天绘数据技术有限公司,陕西 西安 710000
- 折叠
摘要
Abstract
A design scheme of wide-band spiral antenna is proposed to enhance low elevation gain,so as to meet the communication requirements of low earth orbit satellite terrestrial systems.The spiral arm of the antenna is printed on a polyimide film,and the polyetherimide material is used as the column to support the film.The spiral antenna consists of a main arm spiral line and a parasitic arm spiral line,with the parasitic arm connected to the grounding plate through a short-circuit column.By changing the helix inclination angle,helix diameter and helix length,the characteristics of ultra wide band(UWB)and low elevation gain can be achieved.The design concept of the antenna is presented in this article.The optimal structure of the antenna has been ultimately determined after extensive electromagnetic simulation calculations.The physical processing and measurement are carried out.The experimental results show that the horizontal gain of the designed spiral antenna reaches-1 dB,the relative bandwidth reaches 13.3%,and the 3 dB lobe width is 187 degrees.Its spiral diameter is 40 mm and its height is 125 mm.The simulation and actual measurement results are consistent.The model is optimized for spiral array design.According to the simulation results,the gain bandwidth of the 12 spiral phased array antennas is 12.5%,the normal scanning gain of the array is≥10.4 dB,and the gain with a scanning range of±76° is≥10.3 dB.The antenna has a relatively smooth gain and narrow fluctuation range within a scanning range of±76°,and has good large-angle scanning performance.It can expand the scanning angle and increase the elevation gain of phased array antennas,so it can be a consistent and novel antenna and array structure for low orbit satellite ground portable equipment.关键词
螺旋天线/低仰角/高增益/相控阵/低轨卫星通信/薄膜Key words
spiral antenna/low elevation angle/high gain/phased array/low earth orbit satellite communication/film分类
信息技术与安全科学引用本文复制引用
郭萌,董妮妮,高峰,齐娜娜,陈璐,贺畅,陈天夫,刘鹏..面向低轨卫星的螺旋天线及其阵列设计[J].现代电子技术,2025,48(9):54-61,8.
