A wideband dual circular polarization feed chain for satellite antennas at K/Ka bands

2017 Progress In Electromagnetics Research Symposium - Spring (PIERS) Pub Date : 2017-05-22 DOI:10.1109/PIERS.2017.8261737

J. Gong, Qiao Li, Ming-tao Zhang, Jianjun Hou, Yang Wang, Zhi Xu

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引用次数: 4

Abstract

This paper presents the development of a wideband dual circular polarization feed chain applying for satellite antennas at K/Ka bands. The proposed feed chain mainly consists of a wide band common Tx-Rx corrugated horn, an orthogonal mode junction (OMJ), a turnstile junction, a K band polarizer, a Ka band polarizer and connecting waveguides. By optimizing the design parameters of these basic components utilizing different kinds of electromagnetic simulation software, the whole feed chain presents an excellent performance, and the wide range of frequency bands about 14.8% at Tx (10.1% at Rx) is obtained, which covers the operating bands of recent mainly K/Ka satellite antennas and the multiple beam satellite antennas (Tx: 17.7∼20.2 GHz; Rx: 27.5∼30.0GHz). Details of the feed chain design are described, and experimental results of the constructed prototypes are presented and discussed. Due to its high performance, the feed chain can be applying to the fixed satellite, broadcast satellite, and broadband satellite services.

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一种用于K/Ka波段卫星天线的宽带双圆极化馈源链

本文介绍了一种适用于K/Ka波段卫星天线的宽带双圆极化馈源链的研制。所提出的馈电链主要由宽带共Tx-Rx波纹喇叭、正交模结(OMJ)、旋转门结、K波段偏振器、Ka波段偏振器和连接波导组成。利用不同类型的电磁仿真软件对这些基本组件的设计参数进行优化，整个馈电链表现出优异的性能，获得了在Tx处约14.8%(在Rx处约10.1%)的宽频带范围，涵盖了目前主要的K/Ka卫星天线和多波束卫星天线(Tx: 17.7 ~ 20.2 GHz;处方:27.5∼30.0 ghz)。详细描述了进给链的设计，并给出了构建原型的实验结果并进行了讨论。馈源链由于其高性能，可以应用于固定卫星、广播卫星和宽带卫星业务。

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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2017 Progress In Electromagnetics Research Symposium - Spring (PIERS)

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