TY - GEN
T1 - Tunable Electromagnetic Gradient Surface for beam steering by using varactor diodes
AU - Hong, Jungmi
AU - Kim, Youngsub
AU - Yoon, Young Joong
PY - 2013
Y1 - 2013
N2 - In this paper, tunable beam steering has been realized by arranging Electromagnetic Band-gap (EBG) that has constant phase difference, Δφ. The proposed structure is the active periodic Electromagnetic Gradient Surface (EGS) that consist of the 4 by 4 matrix form of unit cells to easily control the several varactor diodes. The phase gradient ±120° of the proposed EGS is selected. Moreover this structure uses only one diode per four unit cells. The conventional loading of a single varactor for each of the unit cells of the EBG is overcome by connectdkgkding the unit cells to a feeding network directly without via. Thus, the EGS can steer reflected beam to-9° at Δφ = 120° and to +9° at Δφ =-120° by actively changing the biasing voltage of varactor diode.
AB - In this paper, tunable beam steering has been realized by arranging Electromagnetic Band-gap (EBG) that has constant phase difference, Δφ. The proposed structure is the active periodic Electromagnetic Gradient Surface (EGS) that consist of the 4 by 4 matrix form of unit cells to easily control the several varactor diodes. The phase gradient ±120° of the proposed EGS is selected. Moreover this structure uses only one diode per four unit cells. The conventional loading of a single varactor for each of the unit cells of the EBG is overcome by connectdkgkding the unit cells to a feeding network directly without via. Thus, the EGS can steer reflected beam to-9° at Δφ = 120° and to +9° at Δφ =-120° by actively changing the biasing voltage of varactor diode.
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M3 - Conference contribution
AN - SCOPUS:84894228766
SN - 9787564142797
T3 - ISAP 2013 - Proceedings of the 2013 International Symposium on Antennas and Propagation
SP - 1211
EP - 1214
BT - ISAP 2013 - Proceedings of the 2013 International Symposium on Antennas and Propagation
T2 - 2013 International Symposium on Antennas and Propagation, ISAP 2013
Y2 - 23 October 2013 through 25 October 2013
ER -