Gain Enhancement for Microstrip Reflectarray Using Superstrate Layer
2005
The results of a recent investigation of a high-gain microstrip reflectarray are presented. The substrate–superstrate resonance technique is used to increase the reflectarray gain. The measured gain is increased by 5 dB when the superstrate layer is added. Gain and radiation patterns are discussed. In order to use this technique in reflectarrays with phase-control elements, the analysis and discussion of the phase reflected by a particular unit cell made up of a slotted and grounded patch are presented. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 152–154, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20928
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