In addition, a simple method based on an equivalent circuit model is introduced for designing and analyzing this kind of antennas. Absence of resonator elements in this structure will reduce the dielectric and conductor losses, which are the main losses in reflect-array antennas at resonance frequency. This in-homogeneous dielectric layer can be controlled by these holes to collimate the reflected waves in the special direction. The effective electric permittivity of the dielectric substrate is altered by drilling holes with different diameter and spacing, which provide an in-homogeneous dielectric layer. This structure utilizes a perforated substrate as a reflecting surface with the lattice of different holes. Perforated Substrate, Reflect-Array AntennaĪBSTRACT: A new reflect-array antenna structure is proposed. Inhomogeneous Perforated Reflect-Array AntennasĪUTHORS: Mojtaba Moeini-Fard, Mohammad Khalaj-Amirhosseini CST-Microwave Studio, “User’s Manual,” R4, 2002.
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