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http://dx.doi.org/10.5515/KJKIEES.2014.25.10.1077

Design of Rotman Lens for Curved Array Antenna with Minimal Phase Error  

Park, Joo-Rae (Agency for Defense Development)
Park, Dong-Chul (Department of Radio Science & Engineering, Chungnam National University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.25, no.10, 2014 , pp. 1077-1086 More about this Journal
Abstract
We propose a design method of a Rotman lens for curved array antenna applicable to conformal array. In this paper, design equations are derived to obtain an array curve, transmission line lengths of a Rotman lens in conjunction with a curved array antenna, and the phase error of a Rotman lens based on these design equations is minimized through the beam curve optimization procedure and the refocusing procedure. Rotman lenses designed by the proposed design equations and design procedures still maintain 3 focal points, can feed a convex or concave array antenna with circular curve, parabolic curve, V-shaped curve, etc as well as a straight line array antenna, and have minimal phase error.
Keywords
Beam Curve Optimization; Curved Array Antenna; Phase Error; Refocusing; Rotman Lens;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Lars Josefsson, Patrik Persson, Conformal Array Antenna Theory and Design, John Wiley & Sons, 2006.
2 R. C. Hansen, Phased Array Antennas, John Wiley & Sons, 2009.
3 W. Rotman, R. F. Turner, "Wide angle microwave lens for line source applications", IEEE Trans. Antennas Propagat., vol. AP-11, pp. 623-632, Nov. 1963.
4 D. H. Archer, "Lens-fed multiple beam arrays", Microwave J., vol. 27, pp. 171-195, Sep. 1984.
5 A. F. Peterson, E. O. Rausch, "Scattering matrix integral equation analysis for the design of a waveguide Rotman lens", IEEE Trans. Antennas Propagat., vol. 47, pp. 870-878, May 1999.   DOI   ScienceOn
6 R. C. Hansen, "Design trades for Rotman lenses", IEEE Trans. Antennas Propagat., vol. 39, pp. 464-472, Apr. 1991.   DOI   ScienceOn
7 J. P. Shelton, "Focusing characteristics of symmetrically configured bootlace lenses", IEEE Trans. Antennas Propagat., vol. AP-26, pp. 513-518, Jul. 1978.
8 D. Archer, R. J. Prickett, and C. P. Hartwig, "Multi-beam array antenna", U. S. Patent 3,761,936, Sep. 1973.
9 T. Katagi, S. Mano, and Shin-Ichi Sato, "An improved design method of Rotman lens antennas", IEEE Trans. Antennas Propagat., vol. AP-32, pp. 524-527, May 1984.
10 R. Uyguroglu, A. Y. Oztoprak, and C. Ergun, "Improved phase performance for Rotman lens", International Journal of RF and Microwave Computer-Aided Engineering, vol. 23, pp. 634-638, Nov. 2013.   DOI
11 박주래, 박동철, "Rotman 렌즈의 위상 오차 최소화를 위한 빔 곡선 최적화", 한국전자파학회논문지, 25(8), pp. 864-871, 2014년 8월.   과학기술학회마을   DOI
12 Joo-Rae Park, Dong-Chul Park, "Phase error minimization by refocusing Rotman lens", 2013 Asia-Pacific Microwave Conference Proceedings, pp. 1097-1099, Nov. 2013.