Browse > Article

Design of Dual Reflector for Monopulse antennas System  

Kim, Won-Sub (Dept. of Electronics and Information Engineering, Cheongju University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.45, no.1, 2008 , pp. 85-90 More about this Journal
Abstract
In this paper, we studied on dual reflector adjusted to monopulse antenna system. As a result, when the efficiency of main reflector is more than 70%, The size of reflector is 30 wavelength of maximum frequency and minimum frequency gain is 37.9dBi, and Maximum frequency gain is 38.6dBi. Also, when a radius is D and Focus-distance is $F_e$, a scheme for efficiency improvement of Sub Reflector is to increase the Focus-distance to Diameter Ratio. In this case, Cross polarization in Far field improved and spherical spreading loss in circumference of reflector reduced. The influence of Radiation pattern followed by the side displacement of feed antenna(at $x_sy_s$) is decreased, it is confirmed that performance of scanning is improved.
Keywords
모노펄스안테나;주반사판;부반사판;반사계수;
Citations & Related Records
연도 인용수 순위
  • Reference
1 T. Kitsuregawa, Advanced Technology in Satellite Communication Antennas : Electrical and Mechanical Design, Artech House,Boston, 1990
2 W.V.T.Rusch, Analysis of Reflector Antennas, Academic Press, 19701
3 F.J.S.Moreira and A.Prata, Jr., 'Generalized classical axially symmetric dual-reflector antenna,' IEEE Trans. Antennas and propagat., vol.AP-49, pp.547-554
4 Alexandre, Tom Milligan, 'Amplitude Aperture Distribution Control in Displaced-Axis Two- reflector antenna', IEEE Magazine, vol 139, no.6, pp.58-63
5 R.E.Collin, Antennas and Radiowave propagation, McGraw-Hill, 1988
6 V.Galindo, 'Design of Dual-reflector antennas with arbitrary phase and amplitude distributions,' IEEE Trans. Antennas and propagat., vol.AP-12, pp.403-408
7 J.L.Lee, 'Improvements in or relating to microwave aerials,' U.K.patent 973 583
8 A.C.leifer, W.Rotman, 'GRAPS: An improved displaced-axis dual-reflector antenna design for EHF application' IEEE AP International Symposium, pp.507-510, 1986