The Journal of the Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회논문지)

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
권호 표지
DOI QR코드

DOI QR Code

Fabrication of Millimeter Wave Radiometer

밀리미터파 복사계의 제작

  • Kim, Soon-Koo (Dept. of Applied Physics & Electronics, Sangji University)
  • 김순구 (상지대학교 이공대학 응용물리전자학과)
  • Received : 2010.09.04
  • Accepted : 2012.06.08
  • Published : 2012.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

We have manufactured a close range Dicke type radiometer which consists of two stage low noise amplifier and diode detector. Frequency range of this system is 35 GHz. And this is used for studying temperature calibration on specific objects. We have present millimeter-wave radiometer's thermal calibration method and its characteristics. From absolute temperature 299K to 309K, in proportion to increase temperature, output voltages are linearly increased. In this case, undefined objects can be measured thermal noise temperature relatively. Overall from absolute temperature 214K to 309K, we have obtained relation of temperature and output voltage;V= 0.03601K - 10.70517.

물체에서 방사되는 열잡음 신호를 수신하여 증폭하고 검파회로를 거쳐 DC전압으로 출력하는 35GHz 대역의 근거리 디케형(Dicke type) 복사계를 제작하고, 복사계의 온도 보정과 그 특성을 소개한다. 또한 이를 이용하여 특정 물체의 밀리미터파 방사에너지를 측정하기 위한 온도보정에 관한 연구를 수행 하였다. 온도범위 299K ~ 309K에서 온도 증가에 따른 밀리미터파 복사계의 출력전압은 선형적이었으며, 이 범위의 온도에서 미지의 흑체 복사에너지의 상대적인 양을 밀리미터파 복사계를 이용하여 측정이 가능하다. 실험한 온도 범위에서 온도와 출력전압과의 관계는 V=0.03601K - 10.70517 을 얻었다.

Keywords

References

  1. Jungang Miao,Thomas Rose, Klaus Kunzi,and Peter Zimmermann, International Journal of Infrared and Millimeter Waves, Vol. 23, No. 8, 1159(2002) https://doi.org/10.1023/A:1019655507759
  2. J. C. Liljegren, Ninth ARM Science Team Meeting Proceedings, San Antonio, Texas, March 22 (1999)
  3. G. J. Smith, University of Lethbridge, Faculty of Arts and Science, 2000
  4. B. N. Lyons, D. R. Vizard, J. P. Pike, W. M. Keily, Microwave and Optical Technology Letters , vol. 6, no. 12, 677(1993) https://doi.org/10.1002/mop.4650061204
  5. Y. S. Chae, S. K. Kim, E. H. Lee, J. K. Rhee, Journal of the Institute of Electronics Engineers of Korea Vol. 43 , 176(2006)
  6. S. Yang, Z. Nie, International Journal of Infrared and Millimeter Waves, Volume 28, Issue 7, 531(2007) https://doi.org/10.1007/s10762-007-9244-6
  7. J. Y. Delahaye, P. Gole, P. Waldteufel, Radio Science, vol. 37, 11(2002) https://doi.org/10.1029/2000RS002606
  8. D. M. LeVine and S. Abraham, IEEE Trans. Geosc. Rem. Sens., vol. 42, 119(2004) https://doi.org/10.1109/TGRS.2003.817977
  9. C. R. Seashore, J. E. Miley, B. A. Kearns, Microwave Journal, vol. 22, 47(1979)
  10. J. Huck, Personenscanner, Diploma Thesis, Fachhochschule Koblenz, Koblenz, (2005)
  11. S. Erukulla, Design and Optimisation of Millimetrewave Sensors for Security Imaging, Master's Thesis, Chalmers University of Technology, Goteborg, (2006)
  12. Guang-Feng Zhang, Guo-Wei Lou, Hong Wang, Microwave and Optical Technology Letters Volume 50(12), 3259(2008) https://doi.org/10.1002/mop.23916
  13. I. M. Blankson, 43rd AIAA Aerospace Sciences Meeting and Exhibit, 10 - 13 January (2005)
  14. David M. Pozar, "MICROWAVE ENGINEERING , Third Edition", John Wiley & Sons, 669(2005)
  15. Nazzareno Mandolesi, N. Vittorio, "The Cosmic microwave background, 25 years later", Kluwer academic Publisher(1995)

Cited by

  1. Design of Dual Curved Lens for Millimeter-Wave Imaging vol.16, pp.6, 2016, https://doi.org/10.7236/JIIBC.2016.16.6.239
  2. Analysis of Indoor Channel Modeling in Millimeter-Wave Band vol.16, pp.4, 2016, https://doi.org/10.7236/JIIBC.2016.16.4.53