A novel compact slotted microstrip patch dual-band antenna with rectangular slotted substrate and symmetrical W-shaped slotted ground having band-notching characteristics for UWB application

摘要

In the following paper, an unusual compressed slotted microstrip patch dual band antenna with rectangular slotted substrate and symmetrical W-shaped (with middle and exterior arms extending longer than the remaining interior arms) slotted ground having band-notched characteristics is presented. The slotted patch is embedded on FR4-epoxy substrate having relative permittivity of 4.4. For increasing the impedance bandwidth, W-shaped (with middle and exterior arms extending longer than the remaining interior arms) notched ground and a rectangular slotted substrate are introduced. The impedance bandwidth, VSWR, radiation pattern, antenna gain and Smith chart are monitored for the projected antenna. The outcomes show good characteristic performance for Ultra-Wideband and the Voltage Standing Wave Ratio necessity of less than 2 is satisfied over the frequency range from 4.43 Gigahertz (GHz) to 5.02 Gigahertz (GHz) and from 5.89 Gigahertz (GHz) to 9.00 Gigahertz (GHz). Due to this, a bandwidth of 3.7 Gigahertz (GHz) is achieved at two central frequencies of 4.73 Gigahertz (GHz) and 7.45 Gigahertz (GHz). The calculated radiation patterns demonstrate decent omni-directional presentation and antenna gains across the operational bandwidth.