Ultra Large Band Printed Monopole Antenna
Résumé: In this work, an Ultra Large Band modified circular shape printed monopole antenna operating in the frequency range extending from 2.60 GHz to 12.15 GHz has been developed. This is achieved by first introducing to the considered original circular shaped antenna defects that resulted in a simulated ULB behavior. The obtained monopole structure has been fabricated and its reflection coefficient measured. A good agreement is observed with the simulated results. The measured antenna percent bandwidth is 129 % whereas the simulated one is 149%. In addition, the antenna simulated and measured refection coefficients present a quite similar form over the frequency range where a good impedance matching is observed. The antenna can operate in different frequency bands (S, C and X) and hence, it is suitable for the various applications covered by these bands. Moreover, different radio electric properties including input impedance, current distribution as well as 2D and 3D radiation patterns are simulated using the CST Microwave Studio tool.
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