1994•Electronics LettersRequires access
Analysis and size reduction of various printedmonopoles with different shapes
Hassan Lebbar, Mohamed Himdi, J.P. Daniel
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Abstract
A simple analysis based on the transmission line model applied to printed dipole antennas, and the Babinet principle allows different shapes of printed monopole antennas to be easily optimised. A shortening ratio (ρ) of 48% (respectively 30%, 40%) is achieved for the monopole antenna by using a step change in line width (respectively a triangular monopole, and a line with a triangular cap). Theoretical input impedance of these various monopoles compare closely with experimental results.