Design Aspects of Printed Monopole Antennas for Ultra‐Wide Band Applications

This paper presents the design equations for lower band‐edge frequency for all the regular shapes of printed monopole antennas with various feed positions. The length of the feed transmission line is a critical design parameter of these monopole antennas. Design curves for the length of the feed transmission line for various lower band‐edge frequencies for all these regular shaped monopoles have been generated. A systematic study has been presented to explain the ultra‐wide bandwidth obtained from these antennas with an example of elliptical monopole antenna.