Gain and Bandwidth Limitations of Reflectarrays

Authors

  • Bhavani Devireddy Department of Electrical Engineering The University of Mississippi, University, MS 38677-1848, USA
  • Ang Yu Department of Electrical Engineering The University of Mississippi, University, MS 38677-1848, USA
  • Fan Yang Department of Electrical Engineering The University of Mississippi, University, MS 38677-1848, USA
  • Atef Z. Elsherbeni Department of Electrical Engineering The University of Mississippi, University, MS 38677-1848, USA

Keywords:

Gain and Bandwidth Limitations of Reflectarrays

Abstract

In reflectarray antenna designs, it is important to find the gain and bandwidth for a desired application. In this paper, two analysis methods are illustrated, which can provide quick estimations on the reflectarray gain and bandwidth. A quantitative comparison on these two different approaches is made in terms of accuracy and computation time. Parametric studies are performed to provide design guidelines for selecting appropriate f/D ratio and feed pattern of a center-fed reflectarray in order to optimize the antenna gain and bandwidth. A gain and bandwidth comparison between the broadside and offset fed reflectarray antennas is presented. Furthermore, the effect of element bandwidth on the performance of an X-band reflectarray is given both numerically and experimentally.

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DEVIREDDY, YU, YANG, ELSHERBENI: GAIN AND BANDWIDTH LIMITATIONS OF REFLECTARRAYS

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Published

2011-02-02

How to Cite

[1]
B. . Devireddy, A. . Yu, F. . Yang, and A. Z. . Elsherbeni, “Gain and Bandwidth Limitations of Reflectarrays”, ACES Journal, vol. 26, no. 2, pp. 170–178, Feb. 2011.

Issue

2011: Vol 26 Iss 2

Section

General Submission