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Electrical and Computer Engineering
Technological University Dublin
1.3 to 5.5 GHz 1.5 GHz azimuth plane electromagnetically coupled elements feed optimization impedance bandwidth lower edge frequency reduction
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Printed Planar Monopole Antenna With Electromagnetically Coupled Elements, Jonathan Evans, Francisco Lerma, Max Ammann
Printed Planar Monopole Antenna With Electromagnetically Coupled Elements, Jonathan Evans, Francisco Lerma, Max Ammann
Conference papers
In this paper, the addition of an EM-coupled element to the printed planar monopole antenna is investigated. While remaining simple to construct, modifications to the EM-coupled element are shown to reduce the lower edge frequency of the 10 dB impedance bandwidth by up to ∼19% (280 MHz at 1.5 GHz). The radiation patterns for these antennas are characteristic of monopole antennas - i.e. omnidirectional in the azimuth plane with a at the zenith - and are consistent within +/- 2 dB across their useful impedance bandwidths. By optimizing the feed arrangements on these antennas a 10 dB impedance bandwidth ratio …