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http://dx.doi.org/10.5515/KJKIEES.2014.25.8.864

Beam Curve Optimization for Minimizing the Phase Errors of Rotman Lens  

Park, Joo-Rae (Agency for Defense Development)
Park, Dong-Chul (Department of Radio Science & Engineering, Chungnam National University)
Publication Information
Abstract
In this paper, we propose an optimization method for obtaining beam curve which minimize the phase errors of Rotman lens. This method is based on idea that 3 path lengths from a beam port through equal phase points, which consist of the center point of array antenna and two points placed symmetrically or asymmetrically along array antenna, to the corresponding phase front are equal. According to this method, the optimal locations of beam ports can be obtained directly by finding each equal phase point set on array antenna to minimize the phase errors for each beam direction. Simulation results show that the proposed method is the most optimal and effective method for determining the beam curve of Rotman lens with low phase errors.
Keywords
Antenna Arrays; Beam Curve Optimization; Multiple Beam Antennas; Phase Errors; Rotman Lens;
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  • Reference
1 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.
2 D. H. Archer, "Lens-fed multiple beam arrays", Microwave J., vol. 27, pp. 171-195, Sep. 1984.
3 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
4 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.
5 R. C. Hansen, "Design trades for Rotman lenses", IEEE Trans. Antennas Propagat., vol. 39, pp. 464-472, Apr. 1991.   DOI   ScienceOn
6 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
7 Joo-Rae Park, Dong-Chul Park, "Phase error minimization by refocusing Rotman lens", 2013 Asia-Pacific Microwave Conference Proceedings, pp. 1097-1099, Nov. 2013.