TY - JOUR
T1 - A Circularly Polarized Annular-ring Patch Antenna with a Groundplane EBG Annular-slot Array
AU - Bao, X. L.
AU - Ruvio, G.
AU - Ammann, M. J.
N1 - Publisher Copyright:
© 2008 ISRAMT. All Rights Reserved.
PY - 2008/4
Y1 - 2008/4
N2 - 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 4x4 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. The simulated and measured results are in good agreement.
AB - 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 4x4 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. The simulated and measured results are in good agreement.
KW - Annular-ring patch antenna
KW - Annular-slot
KW - Circular polarization
KW - Electromagnetic Bandgap
UR - http://www.scopus.com/inward/record.url?scp=85080113666&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:85080113666
SN - 1553-0396
VL - 3
SP - 69
EP - 75
JO - International Journal of Microwave and Optical Technology
JF - International Journal of Microwave and Optical Technology
IS - 2
ER -