Broadband and Compact Design Variations of Z-shaped Printed Slot Microstrip Antenna

Abstract

In this research work, a Z-shaped printed slot microstrip antenna with variations in feed location has been presented to realize broadband and compact antenna. The Z-shaped slot has been realized by placing two right angle triangle shaped patches in opposite directions inside rectangular shaped slot. Further by aligning the microstrip line as feed along the length and width of Z-shaped slot, the broadband and compact antenna respectively has been realized. The antenna is fabricated using an FR4 substrate having electrical dimension of 0.48λ0 × 0.4λ0. The antenna offers 407 MHz (27%) measured impedance bandwidth for broadband and 22% of reduction in size for compact configurations. The parametric analysis, equivalent circuit analysis, and temperature as an environmental testing parameter of proposed designs are presented and validated in this paper.