星載雙頻雙端口天線設(shè)計
2022年電子技術(shù)應(yīng)用第8期
安向東,,邢斯瑞,,隋 濤
長光衛(wèi)星技術(shù)股份有限公司,,吉林 長春130000
摘要: 針對星載收發(fā)機的使用需求,,設(shè)計了一種雙頻段、雙端口,、雙天線共口徑的微帶天線,。通過輻射貼片加載短路過孔技術(shù),配合外部方形圓孔貼片和內(nèi)部圓形貼片切角技術(shù),,使雙天線均工作在主模,。雙天線共口徑工作,分別輻射左旋圓極化和右旋圓極化波,,有效降低星載雙天線布局復(fù)雜度,。仿真結(jié)果表明:天線在中心頻點1.615 GHz處回波損耗為-13 dB,10 dB帶寬為50 MHz,,增益為6 dB,,半功率波束寬度為90°,±60°波束內(nèi)軸比小于3 dB,;天線在中心頻點2.491 GHz處回波損耗為-18 dB,,10 dB帶寬為40 MHz,增益為6 dB,半功率波束寬度為90°,±60°波束內(nèi)軸比小于3 dB,;雙端口隔離度優(yōu)于32 dB,。經(jīng)加工,實測結(jié)果與仿真結(jié)果一致,,該天線對星載雙頻段,、雙端口共口徑天線設(shè)計具有一定指導(dǎo)意義。
中圖分類號: TN82
文獻標(biāo)識碼: A
DOI:10.16157/j.issn.0258-7998.212198
中文引用格式: 安向東,,邢斯瑞,,隋濤. 星載雙頻雙端口天線設(shè)計[J].電子技術(shù)應(yīng)用,2022,,48(8):86-89.
英文引用格式: An Xiangdong,,Xing Sirui,Sui Tao. Satellite dual-frequency dual-port antenna design[J]. Application of Electronic Technique,,2022,,48(8):86-89.
文獻標(biāo)識碼: A
DOI:10.16157/j.issn.0258-7998.212198
中文引用格式: 安向東,,邢斯瑞,,隋濤. 星載雙頻雙端口天線設(shè)計[J].電子技術(shù)應(yīng)用,2022,,48(8):86-89.
英文引用格式: An Xiangdong,,Xing Sirui,Sui Tao. Satellite dual-frequency dual-port antenna design[J]. Application of Electronic Technique,,2022,,48(8):86-89.
Satellite dual-frequency dual-port antenna design
An Xiangdong,Xing Sirui,,Sui Tao
Chang Guang Satellite Technology Co.,,Ltd.,Changchun 130000,,China
Abstract: Aiming at the needs of satellite transceivers, a dual-band, dual-port, dual-antenna common-aperture microstrip antenna was designed. Both antennas work in the main mode by the radiation patch loading short via technology, with the external square patch and the internal circular patch corner cutting technology. Dual antennas work in common aperture, radiating left-handed circular polarization(LHCP) and right-handed circular polarization(RHCP) waves respectively, the complexity of the satellite dual antenna layout is reduced effectively. The simulation results show that the antenna has a return loss of -13 dB at the frequency of 1.615 GHz, the 10 dB bandwidth of 50 MHz, the gain of 6 dB, the half-power beam width of 90°, and the ±60° beam axis ratio less than 3 dB;the antenna has a return loss of -18 dB at the frequency of 2.491 GHz, the 10 dB bandwidth of 40 MHz, the gain of 6 dB, the half-power beam width of 90°, and the ±60° beam axis ratio less than 3 dB,;the dual-port isolation is better than 32 dB. After processing, the actual measurement results are consistent with the simulation results, and the antenna has certain guiding significance for the design of dual-band, dual-port common-aperture antennas on satellites.
Key words : common-aperture,;dual-band antenna;dual-port antenna
0 引言
隨著衛(wèi)星技術(shù)的發(fā)展,,星載一體化技術(shù)的進步,,小型化、高集成度和高性能化成為遙感衛(wèi)星的發(fā)展方向[1],。衛(wèi)星的小型化和高集成度對星載設(shè)備空間尺寸提出了更嚴(yán)格的要求,。遙感衛(wèi)星的發(fā)展離不開無線通信系統(tǒng)的支撐,天線是無線通信系統(tǒng)的重要組成部分,,隨著衛(wèi)星功能的增加,,無線通信鏈路也變得復(fù)雜,星上需要解決多天線引起的衛(wèi)星外部布局空間有限的問題,。
圓極化微帶天線[2-7]由于結(jié)合了微帶天線諸如結(jié)構(gòu)緊湊,、體積小、重量輕,、剖面低,、容易制造、易于集成并可附著于任意表面等優(yōu)點和圓極化波能抑制雨霧的干擾、抗多徑反射,、具有更好的移動性等優(yōu)點[8],,目前已廣泛應(yīng)用于衛(wèi)星通信、雷達,、移動通信以及各種無線通信設(shè)備當(dāng)中,。
針對天線引起的安裝空間問題,常規(guī)情況下可通過小型化,、多頻段或?qū)掝l帶天線技術(shù)解決[9-11],,但在面對高功率發(fā)射和高靈敏度接收時,單端口天線在實際使用將增大射頻通道的設(shè)計難度,,因此需要天線具有獨立的雙端口,。
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作者信息:
安向東,,邢斯瑞,,隋 濤
(長光衛(wèi)星技術(shù)股份有限公司,吉林 長春130000)
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