Browsing by Author "Farag, Yasser Sobhy"

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    A Novel of Metamaterial Ultra Compact Reconfigurable Phase Shifter Based on Dual Composite Right Left Handed Structure (D-CRLH)
    (EMW Publishing, 2024-01) Farag, Yasser Sobhy; Abaza, Mohamed; Daw, Ahmed Fawzy
    A novel ultra-compact dual-band reconfigurable microstrip phase shifter designed by using a dual-composite right/left handed D-CRLH technique of metamaterial is introduced. The paper proposes detailed studies between the simulation and the fabricated prototype results. Moreover, the study of the proposed phase shifter explains a shifting range from 0◦ till 360◦ by submitting four mounted surface switches in different spots of the fingers. Switches have fixed states shifting to provide the controlling of the requested range. The switches were chosen to be from PIN Diode as it has many compatible characteristics which are explained in the proposed paper. The reconfigurable phase shifter designed with high quality factors and low insertion loss 0.25 and 0.2 at 5.7 GHz and 7.5 GHz respectively with a very compact size area 8 × 11. The proposed shifter supports the application of wide band usage especially for network access point, Wi-Fi, WiMAX network, and wireless LAN connections in addition to the application of point to point microwave radio links and X-band of satellite & space communications.