@article{MAKHILLJEAS2018132016997,
    title = {Bi-Layer, Broad-Band, Sub-Wavelength Reflectarray},
    journal = {Journal of Engineering and Applied Sciences},
    volume = {13},
    number = {20},
    pages = {8662-8665},
    year = {2018},
    issn = {1816-949x},
    doi = {jeasci.2018.8662.8665},
    url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2018.8662.8665},
    author = {Hassan,Adheed and},
    keywords = {Broadband,sub-wavelength,reflectarray,C-band,wide-phase-range,W-slot},
    abstract = {This study investigates the role of variable sized microstrip patch elements with a double layer substrate to reduce dielectric loss, antenna weight and system cost. Simulation results show that the phase range reaches 700° at C-band with a reflection loss does not exceed 2 dBs Which effectively proves the reflectarrays in this type of application. Circular patch loaded with W-slot is used as a primitive cell for the lower layer at 6 GHz while a λ/4 side length heptagon at 5.5 GHz is molded within the upper layer. Building and testing the designed reflectarray concurs the simulation results.}
    }