Desn and analysis of microstrip antenna with z-zag feeder for

zig zag slotdielectric substrate with elliptical slots. A z-zag strip feed of 50 Ω connected to the port with a tuning stub for feeding. The purpose of using a tuning stub in a slot antenna is todielectric substrate with elliptical slots. A z-zag strip feed of 50 Ω connected to the port with a tuning stub for feeding. The purpose of using a tuning stub in a slot antenna is to