DOI QR코드

DOI QR Code

A Cylindrical Hybrid Antenna for Shaping Complex Beam Patterns

복합 빔 패턴 형성을 위한 원통형 하이브리드 안테나

  • Published : 2007.11.30

Abstract

In this paper, a cylindrical hybrid antenna which is spatially fed by an off-set linear feed array is described to form complex beam patterns. The linear feed array consists of twelve micro-strip patch elements and forms a flat-topped beam pattern with a beam-width of $90^{\circ}$ in the horizontal plane. The vertical curve on the cylindrical reflector with the linear feed array is shaped in order to form a cosecant beam pattern within the range of $-5^{\circ}$ to $-25^{\circ}$ in the vertical plane. To form complex beam patterns, the hybrid antenna with cylindrical reflector aperture of $140{\times}50\;cm$ was designed and fabricated to be operated within the IMT 2000 service band, and also electrical performances of the antenna were measured and analyzed.

본 논문에서는 복합 빔 패턴들을 형성하기 위해 오프셋 선형 급전 배열에 의해 공간 급전되는 원통형 하이브리드 안테나에 대하여 기술한다. 선형 급전 배열은 12개의 마이크로스트립 패치 소자들로 구성되며, 수평면에서 $90^{\circ}$의 구형 빔 패턴을 형성한다. 그리고, 수직면에서 $-5^{\circ}{\sim}-25^{\circ}$ 범위에 걸쳐 코씨컨트 빔 패턴을 형성하기 위해 선형 급전 배열에 의해 원통형 반사판상의 수직 곡선이 성형화 된다. IMT-2000 서비스 대역에서 동작하는 $140{\times}50\;cm$ 크기의 원통형 반사판 개구면을 갖는 하이브리드 안테나 시제품을 설계 및 제작하였으며, 또한 안테나의 전기적 성능들을 측정하고 그 결과들을 분석하였다.

Keywords

References

  1. G. Lee, M. Masound, 'Design of a base station antenna with a sharp roll-off sector pattern', IEEE Int. Antennas and Propagation Symp., 34, pp. 1602-1605, Jul. 1996
  2. K. Matsumoto, E. T. Rahardjo, and M. Haneishi, 'Beam shaping using microstrip array antenna', Proceedings of Conference Journees Internationales De Nice Sur Les Antennes, Jina 94. France, Nice, pp. 670-673, Nov. 1994
  3. Soon Young Eom, Cheol Sig Pyo, Soon Ik Jeon, S. A. Ganin, A. V. Shishlov, A. G. Shubov, and V. Ya. Tscherbenkov, 'Research of planar array antenna with flat-topped radiation pattern for perspective base stations of mobile communication', Antennas, no. 1, pp. 30-38, 2005
  4. S. P. Skobelev, 'Analysis and synthesis of array antenna with element flat-topped patterns', Radiote-chnika, no. 10, pp. 44-47, 1990
  5. A. S. Reutov, A. V. Shishlov, 'Features of the stepwise contour beam reflector antenna synthesis using cubic spline representation of reflector surface', Electromagnetic Waves and Electric Systems, Moscow, no. 2, pp. 4-14, 2003
  6. S. P. Skobelev, 'Parabolic cylindrical antenna with linear array forming flat-topped element radiation patterns', Radiotechnika, no. 6, pp. 42-48, 2004
  7. A. S. Reutov, A. V. Shishlov, 'Focuser-based hybrid antennas for one-dimensional beam steering', Proceedings of the 2000 IEEE International Conference on Phased Array Systems and Technology, Dana Point, California, pp. 411-414, 2000
  8. A. S. Kondrat'ev, A. D. Khzmalyan, 'Phase-only synthesis of antenna arrays for a given amplitude radiation pattern', Journal of Communications Technology and Electronics, vol. 41, no. 10, Moscow, 1996
  9. Yu. Ge, K. P. Esselle, and T. S. Bird, 'Broadband E-shaped patch antenna for 5-6 GHz wireless computer network', Proceedings of IEEE Int. Antennas and Propagation Symp., vol. 2, pp. 942-945, Jun. 2003