Abstract
An antenna constructed with a conformal engineered reflector is presented, demonstrating an enhanced gain, shaped-beam radiation pattern. The reflector is composed of artificial magnetic conductor (AMC) unit cells designed for the desired reflection phase responses. A methodology is developed, describing the scattering mechanism of AMC unit cells to collimate the reflected waves toward the broadside direction. Obtained results show a gain enhancement of about 7.5 dBi compared with the case where antenna is alone. Moreover, the antenna has a fan-shape radiation beam with half power beam-widths of 37° and 87° in the E- and H-planes, respectively. Measured results show a shaped-beam antenna with maximum gain of 9.5 dBi, and a wide impedance bandwidth ranging from 2.4 to 2.6 GHz. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:880â883, 2017
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