Analysis of Axially Displaced Ellipse Gregorian Dual Reflector Antennas

축이동 그레고리안 이중 반사경 안테나의 해석

  • 임성빈 (단국대학교 전자컴퓨터학부) ;
  • 최경국 (삼성전자 TN총괄 네트웍사업부) ;
  • 최학근 (단국대학교 전자컴퓨터학부)
  • Published : 2003.11.01

Abstract

In this paper, ADE(Axially Displaced Ellipse) Gregorian dual reflector antennas, which are the special form of Gregorian dual reflector antennas, were analyzed. In the procedure of antenna analysis, the aperture field distribution was obtained by using the geometrical optics and their far-field radiation characteristics were analyzed by using the aperture field method. The analysis results such as antenna efficiency, HPBW(Half Power Beam Width), FNBW(First Null Beam Width), and FSL(First Sidelobe Level) were presented as functions of edge taper and size of main reflector and subreflector. From the results in this paper, we could confirm that ADE reflector antennas have the different radiation characteristics from the classical dual reflector antennas.

본 논문에서는 그레고리안 이중 반사경 안테나의 특별한 형태인 축이동 그레고리안 이중 반사경 안테나 (Axially Displaced Ellipse Gregorian Dual Reflector Antennas)를 해석하였다. 안테나 해석시 기하광학적 방법으로 개구면 전계분포를 구하였으며, far-field 복사특성을 해석하기 위해 개구분포법을 이용하였다. 해석결과로서 부반사경과 주반사경의 크기와 edge taper에 따른 안테나 효율, HPBW(Half Power Beam Width), FNBW(First Null Beam Width), FSL(First Sidelobe Level)을 도출하여 데이터로 제시하였다. 본 논문에서 도출된 결과로부터 ADE 반사경 안테나는 기존의 이중 반사경 안테나와 다른 복사특성을 갖는다는 것을 확인할 수 있었다.

Keywords

References

  1. IEEE AP Interantional Symposium GRAPS: An improved displaced-axis dual-reflector antenna design for EHF application A.C.Leifer;W.Rotman
  2. Telecommunication and Radio Engineering v.29 no.9 Development of double reflector antennas with a displaced focal axis Y.A.Yerukhimovich
  3. IEEE AP International Symposium Compact dual frequency reflector antennas for EHF mobile satellite communication terminals W.Rotman;J.C.Lee
  4. IEEE Magazine v.139 no.6 Amplitude Aperture Distribution Control in Displaced-Axis Two-Reflector Antenna Alexandre;Tom Milligan
  5. Advanced Technology in Satellite Communication Antennas: Electrical and Mechanical Design T.Kitsuregawa
  6. Antennas and Radiowave Propagation R.E.Collin
  7. Analysis of Reflector Antennas W.V.T.Rusch
  8. Antenna Theory-part Ⅱ R.E.Collin
  9. Antenna Theory Analysis and Design Balanis
  10. IEEE Trans. Antennas Propgat. v.AP-27 no.2 aperture Amplitude and Phase Control of Offset Dual Reflctor V.Galindo-Israel;R.Mittra;A.G.Chu
  11. IEEE Trans. Antennas Propagat. v.AP-38 no.3 Derivation and Application of the Equivalent Paraboloid for Classical Offset Cassegrain and Gregorian Antenna W.V.T.Rusch