TY - JOUR
T1 - An offset-fed X-band reflectarray antenna using a modified element rotation technique
AU - Yu, A.
AU - Yang, F.
AU - Elsherbeni, A. Z.
AU - Huang, J.
AU - Kim, Y.
PY - 2012/3
Y1 - 2012/3
N2 - An X-band circularly polarized reflectarray antenna with an offset feed is designed, fabricated, and measured. The proposed design features the use of split square ring elements with a modified element rotation technique for phase compensation, which allows the rotation of the slot instead of the element itself. This is crucial in single-layer multiband reflectarray antenna designs where it is desired to minimize the effectively occupied area by individual elements. A design flow chart of the reflectarray antenna is summarized, and the element/system design procedure is presented in details. A reflectarray prototype was measured in a near field measurement system, which operates at 8.4 GHz with a gain of 30.4 dB and an aperture efficiency of 53.7%. Both the axial ratio bandwidth (AR < 3 dB) and the 3 dB gain bandwidth are 6%.
AB - An X-band circularly polarized reflectarray antenna with an offset feed is designed, fabricated, and measured. The proposed design features the use of split square ring elements with a modified element rotation technique for phase compensation, which allows the rotation of the slot instead of the element itself. This is crucial in single-layer multiband reflectarray antenna designs where it is desired to minimize the effectively occupied area by individual elements. A design flow chart of the reflectarray antenna is summarized, and the element/system design procedure is presented in details. A reflectarray prototype was measured in a near field measurement system, which operates at 8.4 GHz with a gain of 30.4 dB and an aperture efficiency of 53.7%. Both the axial ratio bandwidth (AR < 3 dB) and the 3 dB gain bandwidth are 6%.
KW - Circular polarization
KW - element rotation technique
KW - reflectarray antenna
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U2 - 10.1109/TAP.2011.2180299
DO - 10.1109/TAP.2011.2180299
M3 - Article
AN - SCOPUS:84863282343
SN - 0018-926X
VL - 60
SP - 1619
EP - 1624
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 3
M1 - 6107552
ER -