星載高增益寬頻帶高指向性陣列天線設計
電子技術應用
金宇婷,邢斯瑞,安向東,吳簡
長光衛星技術股份有限公司,吉林 長春 130000
摘要: 針對衛星對X波段通信系統電磁波傳輸的需求,設計了一款新型X波段高增益寬頻帶高指向性微帶陣列天線。采用平面多層板形式,通過多種技術手段改善天線性能。陣列天線采用側饋的能量輸入方式、多層縫隙耦合饋電設計提高天線帶寬,同時將輻射層和饋電網絡層分離以減小電磁波串擾和提升分離設計簡約度,增加金屬反射層以提高天線正向增益和前后比。根據工程總體需求,共設計了64陣元和256陣元的矩形微帶陣列天線。兩種天線經加工測試結果與仿真結果基本一致。該天線實現了高增益、寬頻帶、高指向性等性能指標,對X波段星地無線通信系統的設計有一定指導意義。
中圖分類號:TN82 文獻標志碼:A DOI: 10.16157/j.issn.0258-7998.234103
中文引用格式: 金宇婷,邢斯瑞,安向東,等. 星載高增益寬頻帶高指向性陣列天線設計[J]. 電子技術應用,2024,50(3):104-108.
英文引用格式: Jin Yuting,Xing Sirui,An Xiangdong,et al. Design of high-gain wideband high directivity array antenna for satellite communication system[J]. Application of Electronic Technique,2024,50(3):104-108.
中文引用格式: 金宇婷,邢斯瑞,安向東,等. 星載高增益寬頻帶高指向性陣列天線設計[J]. 電子技術應用,2024,50(3):104-108.
英文引用格式: Jin Yuting,Xing Sirui,An Xiangdong,et al. Design of high-gain wideband high directivity array antenna for satellite communication system[J]. Application of Electronic Technique,2024,50(3):104-108.
Design of high-gain wideband high directivity array antenna for satellite communication system
Jin Yuting,Xing Sirui,An Xiangdong,Wu Jian
Chang Guang Satellite Technology Co., Ltd., Changchun 130000, China
Abstract: To meet the satellite requirements for electromagnetic wave transmission in X-band communication system, a new X-band high-gain wideband high directivity microstrip array antenna is designed by selecting different antenna types. The performance of the antenna is improved by various technical means in the form of plane multilayer plates. The array antenna adopts the side fed energy input mode and the multi-layer slot coupling feed design to improve the antenna bandwidth. At the same time, the radiation layer and the feed network layer are separated to reduce the electromagnetic wave crosstalk and improve the simplicity of the separation design. The metal reflection layer is added to improve the antenna forward gain and front to back ratio. According to the project, the 64 elements and 256 elements rectangular array antenna are designed. The machining test results of two kinds antennas are basically consistent with the simulation results. The antenna achieves performance indicators such as high gain, broadband and high directivity, which is of some significance to the design of X-band satellite-earth wireless communication system.
Key words : microstrip array antenna;X-band;high-gain;wideband;high directivity
引言
在科技飛速發展的今天,遙感衛星應用領域越來越廣泛,包括國土普查、深空探測、資源勘探、環境監測、減災防災、鐵路選線、地理測繪與調查、農業估產、草原及林區普查等多個領域[1-6]。其中各種電磁設備正不斷向小型化、高集成度、高性能化發展,以滿足系統級的優良性能及不同的功能需求[7-8]。天線作為衛星的收發前端,有著非常重要的地位和意義。
星載天線目前在軌衛星使用的天線形式多種多樣:微帶天線、拋物面天線、波導縫隙天線、偶極子天線、喇叭天線等[9-11]。微帶天線與其他天線相比,具有易集成、低剖面、易共形、易加工、饋電網絡便于與輻射體一體化設計,結構緊湊,一致性好、低成本、適合批量生產等優點[12]。
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http://www.viuna.cn/resource/share/2000005924
作者信息:
金宇婷,邢斯瑞,安向東,吳簡
長光衛星技術股份有限公司
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