Title | A Circularly Polarized Annular-ring Patch Antenna with a Groundplane EBG Annular-slot Array |
Publication Type | Journal Article |
Year of Publication | 2008 |
Authors | Bao, XL, Ruvio, G, Ammann, MJ |
Journal Title | International Journal of Microwave and Optical Technology |
Volume | 3 |
Issue | 2 |
Pagination | 69-75 |
Journal Date | 04/2008 |
ISSN Number | 1553-0396 |
Abstract | The effects of tuning the parameters of an annular-ring circular patch antenna with a cross-slot are analyzed and discussed. Then, based on this structure, a novel antenna with an electromagnetic bandgap cell system, which consists of a 4×4 annular-slot array in the groundplane, is designed and both numerically and experimentally evaluated. When compared to the annular-ring patch antenna on a groundplane of the same size without EBG structure, the proposed antenna presents a significant increase in the impedance bandwidth, axial-ratio bandwidth and gain. On the other hand, the insertion of the EBG structure allows a 10% reduction of the centre frequency when compared to the annular-ring patch antenna on a conventional groundplane. |
URL | http://www.ijmot.com/ijmot/uploaded/Hmd10182007435415Gs.pdf |
Full Text |