Design and analysis of microstrip antenna arrays for meteorological nano-satellites for UHF uplink

2014 International Telecommunications Symposium (ITS) Pub Date : 2014-11-06 DOI:10.1109/ITS.2014.6947985

M. P. Magalhães, M. Heckler, J. Mota, A. Sombra, E. C. Moreira

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引用次数: 7

Abstract

This paper presents the study of microstrip antenna arrays for meteorological nano-satellites that are under development in the frame of UNIESPAÇO programme, which is supported by the Brazilian Space Agency (AEB). The main goal of such satellites is to serve as data relay for transmission of meteorological data collected by stations deployed in remote areas, such as in the rain forest, whereby no wired communication is possible. Arrays composed of linearly and circularly polarized microstrip antennas are investigated. The performance of such arrays is assessed including parameter variations, especially for the case of dielectric constant of the antenna substrate and misalignment in the orientation of the array elements. Such imperfections can occur due to mechanical stress and large temperature variations that are typical to the space environment. The antennas were modeled with the electromagnetic simulator Ansys HFSS. Good results have been observed in terms of the axial ratio, impedance bandwidth and gain for both of the proposed models.

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气象纳米卫星超高频上行微带天线阵列设计与分析

本文介绍了在巴西航天局(AEB)支持的UNIESPAÇO项目框架下正在开发的用于气象纳米卫星的微带天线阵列的研究。这种卫星的主要目标是作为数据中继器，传送部署在偏远地区的气象站收集的气象数据，例如在热带雨林，在这些地区没有有线通信是可能的。研究了由线极化和圆极化微带天线组成的阵列。这种阵列的性能评估包括参数变化，特别是在天线基片介电常数和阵列元素方向不对准的情况下。这种缺陷可能是由于机械应力和空间环境中典型的大温度变化造成的。利用电磁模拟器Ansys HFSS对天线进行建模。这两种模型在轴比、阻抗带宽和增益方面都取得了良好的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2014 International Telecommunications Symposium (ITS)

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