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S頻段阿基米德錐柱螺旋天線設(shè)計(jì)
電子技術(shù)應(yīng)用
黃振葵,,邢斯瑞,,沈晨陽,隋濤,,安向東
長光衛(wèi)星技術(shù)股份有限公司
摘要: 根據(jù)衛(wèi)星S頻段測控系統(tǒng)通信需求,,設(shè)計(jì)了S頻段寬頻帶高增益圓極化的阿基米德錐柱螺旋天線,。通過四分之一波長同軸縫隙巴倫完成信號的平衡-不平衡轉(zhuǎn)化以及寬帶阻抗匹配。雙臂阿基米德天線可以很好地提供圓極化特性,,作為錐臺的FR4材料除了為天線提供支撐,,也有效地完成了增益與波束寬度的控制。實(shí)測天線在收發(fā)頻段內(nèi)駐波比小于1.5,,±70°范圍內(nèi)增益大于0 dBi,,軸比小于5 dB,可有效地實(shí)現(xiàn)測控天線的收發(fā)復(fù)用功能,。
中圖分類號:TN82 文獻(xiàn)標(biāo)志碼:A DOI: 10.16157/j.issn.0258-7998.245097
中文引用格式: 黃振葵,,邢斯瑞,沈晨陽,,等. S頻段阿基米德錐柱螺旋天線設(shè)計(jì)[J]. 電子技術(shù)應(yīng)用,,2024,50(7):93-96.
英文引用格式: Huang Zhenkui,,Xing Sirui,,Shen Chenyang,et al. Design of S-band conical Archimedean spiral antenna[J]. Application of Electronic Technique,,2024,50(7):93-96.
Design of S-band conical Archimedean spiral antenna
Huang Zhenkui,,Xing Sirui,,Shen Chenyang,Sui Tao,,An Xiangdong
Chang Guang Satellite Technology Co.,, Ltd.
Abstract: According to the communication requirements of the satellite S-band Tracking, Telemetry and Command system (TT&C), a conical Archimedean spiral antenna with wideband and high gain circular polarization is designed for the S-band. The quarter-wavelength coaxial slotted balun completes the balance-unbalance conversion of the signal and wideband impedance matching. The dual-arm Archimedean antenna can provide good circular polarization characteristics, and the FR4 material as a cone not only provides support for the antenna, but also effectively achieves the control of gain and beamwidth. The measured antenna has a Voltage Standing Wave Ratio (VSWR) of less than 1.5, a gain of more than 0 dBi within ±70° and an axial ratio of less than 5 dB in the transceiver frequency band, which can effectively realize the transceiver multiplexing function of the TT&C antenna.
Key words : wideband;circular polarization,;helical antenna,;coaxial slotted balun

引言

近年來,各國爭相搶占空間軌道與頻段資源,,全球航天產(chǎn)業(yè)進(jìn)入變革新階段[1-6],。為了更迅速、經(jīng)濟(jì)地實(shí)現(xiàn)星座組網(wǎng),,衛(wèi)星小型化成為必然趨勢,。測控天線作為衛(wèi)星射頻前端重要組成部分,其性能指標(biāo)很大程度上影響著衛(wèi)星的通信質(zhì)量與制造成本,。

測控天線一般利用雙臂,、四臂螺旋天線及陣子天線的寬波束特性保障星地通信的穩(wěn)定性[7]。雙臂阿基米德螺旋天線憑借自互補(bǔ)結(jié)構(gòu)及非頻變特性,,展現(xiàn)出了寬波束,、高增益以及圓極化的優(yōu)良性能,,令其得到了廣泛研究與應(yīng)用[8-13]。但測控天線的設(shè)計(jì)不應(yīng)僅滿足于上述指標(biāo)的實(shí)現(xiàn),,還需對其包絡(luò)與重量進(jìn)行限制,。

本文設(shè)計(jì)了一種S頻段的阿基米德錐柱螺旋測控天線,實(shí)現(xiàn)收發(fā)頻帶內(nèi)(21XX~22XX MHz)駐波比小于1.5的同時(shí),,±70°范圍內(nèi)增益大于0 dBi且軸比小于5 dB,,此外,天線包絡(luò)小于70 mm×70 mm×105 mm ,,符合指標(biāo)要求,,完成了天線的小型化設(shè)計(jì)。


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作者信息:

黃振葵,,邢斯瑞,,沈晨陽,隋濤,,安向東

(長光衛(wèi)星技術(shù)股份有限公司,,吉林 長春 130000)


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