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Emissivity study of the array shaped blackbody in the microwave band

Jin Ming Bai Ming Miao Jun-Gang

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Emissivity study of the array shaped blackbody in the microwave band

Jin Ming, Bai Ming, Miao Jun-Gang
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  • Different from that in the optical band, the blackbody in the microwave band is constructed in a coated cone array structure. The blackbody of this type can be used in calibrating microwave radiometers with standard brightness radiations, and needs to have a uniform surface thermal distribution and high emissivity. The emissivity study of such a blackbody can be performed based on the Kirchhoff's law of thermal equilibrium, in a reflection determination routine. The emissivity characteristics varying with frequency have been intensively studied, but their variations with direction and polarization have not received much attentions. Starting from the Floquet mode analysis, a reflection evaluation scheme for the blackbody is presented, which is more robust than that based on the back-ward RCS determination. Based on the presented scheme, the trends of emissivity varying with frequency, direction, polarization are studied, for a microwave blackbody design. Results show that the emissivity rises as the frequency rises in a range from X band to K band; and in the low frequency band, the trend of the vertical polarization emissivity varying with elevation angle is different from that of the horizontal polarization emissivity, and there exists an obvious phenomenon that the vertical polarization emissivity declines with the increase of elevation angle. These phenomena are related to the electromagnetic absorption characteristics of the coating layer.
    • Funds: Project supported by the Foundation of Nation Key Laboratory of China (Grant No. 9140c5305021005).
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    Nian F, Yang Y, Wang W 2009 J. Sys. Engineer. Electron. 20 6

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    Wang J H, Miao J G, Yang Y J, Chen Y M 2008 IEEE Trans. Anten. Propag. 56 2656

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    Wang J H, Yang Y J, Miao J G, Chen Y M 2010 IEEE Trans. Anten. Propag. 58 1173

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    Bucci O, Franceschetti G 1971 IEEE Trans. Anten. Propag. 19 96

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    [17]

    Trintinalia L, Ling H 2004 IEEE Trans. Anten. Propag. 52 2253

    [18]

    Lou Z, Jin J M 2003 Microwave Opt. Tech. Lett. 37 203

    [19]

    Yang H, Weng F, Lü L, Lu N, Liu G, Bai M, Qian Q, He J, Xu H 2011 IEEE Trans. Anten. Propag. 49 4452

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    Xie B, Chen S 1998 Chin. Phys. 7 670

    [21]

    Yang R, Xie Y J, Li X F, Jiang J, Wang Y Y, Wang R 2009 Acta Phys. Sin. 58 901 (in Chinese) [杨锐, 谢拥军, 李晓峰, 蒋俊, 王元源, 王瑞 2009 物理学报 58 901]

    [22]

    Zhang Z Y, Lin S J 1995 Microwave Radiometer Metrology Technology and Application (Beijing: Publishing House of Electronic Industry) pp50-53 (in Chinese) [张组荫, 林士杰 1995 微波辐射计测量技术及应用 (北京: 电子工业出版社) 第50-53页]

    [23]

    Ge D B, Yan Y B 2002 Finite Difference Time Domain Method for Electromagnetic Waves (2nd Ed.) (Xi'an: Xidian Pulishing House) pp225-250, 279-284 (in Chinese) [葛德彪, 闫玉波 2002 电磁波时域有限差分方法(第二版) (西安: 西安电子科技大学出版社) 第225-250页, 第279-284页]

  • [1]

    Surussavadee C, Staelin D 2008 IEEE Trans. Geosci. Remote Sens. 46 99

    [2]

    Burrage D, Wesson J, Miller 2008 IEEE Trans. Geosci. Remote Sens. 46 765

    [3]

    Liang Z C, Jin Y Q 2003 Acta Phys. Sin. 52 1321 (in Chinese) [梁子长, 金亚秋 2003 物理学报 52 1321]

    [4]

    Li Z, Wei E B, Tian J W 2007 Acta Phys. Sin. 56 3028 (in Chinese) [李志, 魏恩泊, 田纪伟 2007 物理学报 56 3028]

    [5]

    Liu X C, Gao T C, Qin J, Liu L 2010 Acta Phys. Sin. 59 2156 (in Chinese) [刘西川, 高太长, 秦健, 刘磊 2010 物理学报 59 2156]

    [6]

    Randa J, Cox A, Walker D 2006 Proc. IGARSS, Denver, USA, July 31-August 4, 2006 p3996

    [7]

    Yan W, Lu W, Shi J K, Ren J Q, Wang R 2011 Acta Phys. Sin. 60 099401 (in Chinese) [严卫, 陆文, 施健康, 任建奇, 王蕊 2011 物理学报 60 099401]

    [8]

    Nian F, Yang Y J, Chen Y M, Xu D Z, Wang W 2007 J. Astron. Metrol. Measurem. z1 27 (in Chinese) [年丰, 杨于杰, 陈云梅, 徐德忠, 王伟 2007 宇航计测技术学报 z1 27]

    [9]

    Nian F, Yang Y, Wang W 2009 J. Sys. Engineer. Electron. 20 6

    [10]

    Jackson D, Gasiewski 2000 Proc. IGARSS Honolulu, Hawaii, July 24-28, 2000 2827

    [11]

    Wang J H, Miao J G, Yang Y J, Chen Y M 2008 IEEE Trans. Anten. Propag. 56 2656

    [12]

    Wang J H, Yang Y J, Miao J G, Chen Y M 2010 IEEE Trans. Anten. Propag. 58 1173

    [13]

    Gu D Z, Houtz D, Randa J, Walker D 2011 IEEE Trans. Geosci. Remote Sens. 49 3443

    [14]

    Bucci O, Franceschetti G 1971 IEEE Trans. Anten. Propag. 19 96

    [15]

    Moharam M, Gaylord T 1982 J. Opt. Soc. Am. 72 1385

    [16]

    Marly N, Baekelandt B, De Zutter D, Pues H 1995 IEEE Trans. Anten. Propag. 43 1281

    [17]

    Trintinalia L, Ling H 2004 IEEE Trans. Anten. Propag. 52 2253

    [18]

    Lou Z, Jin J M 2003 Microwave Opt. Tech. Lett. 37 203

    [19]

    Yang H, Weng F, Lü L, Lu N, Liu G, Bai M, Qian Q, He J, Xu H 2011 IEEE Trans. Anten. Propag. 49 4452

    [20]

    Xie B, Chen S 1998 Chin. Phys. 7 670

    [21]

    Yang R, Xie Y J, Li X F, Jiang J, Wang Y Y, Wang R 2009 Acta Phys. Sin. 58 901 (in Chinese) [杨锐, 谢拥军, 李晓峰, 蒋俊, 王元源, 王瑞 2009 物理学报 58 901]

    [22]

    Zhang Z Y, Lin S J 1995 Microwave Radiometer Metrology Technology and Application (Beijing: Publishing House of Electronic Industry) pp50-53 (in Chinese) [张组荫, 林士杰 1995 微波辐射计测量技术及应用 (北京: 电子工业出版社) 第50-53页]

    [23]

    Ge D B, Yan Y B 2002 Finite Difference Time Domain Method for Electromagnetic Waves (2nd Ed.) (Xi'an: Xidian Pulishing House) pp225-250, 279-284 (in Chinese) [葛德彪, 闫玉波 2002 电磁波时域有限差分方法(第二版) (西安: 西安电子科技大学出版社) 第225-250页, 第279-284页]

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Publishing process
  • Received Date:  13 December 2011
  • Accepted Date:  18 January 2012
  • Published Online:  05 August 2012

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