Multimedia >>
Tunable I-shaped Metamaterial by Loading Varactor Diode for Reconfigurable Antenna
Author(s): Wang, YF (Wang, Yifu); Yin, JC (Yin, Jingchan); Yuan, GS (Yuan, Guishan); Dong, XC (Dong, Xiaochun); Du, CL (Du, Chunlei)
Source: APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING Volume: 104 Issue: 4 Pages: 1243-1247 DOI: 10.1007/s00339-011-6455-4 Published: SEP 2011
Abstract: A tunable metamaterial by employing I-shaped metamaterial with loaded varactor diode is presented in this paper and the phase of emitting wave modulated by the varactor diode is demonstrated. We have proved that the energy loss is relatively low when the working frequency is chosen to be away from the resonance frequency of the I-shaped metamaterial. By using the metamaterial, a pattern reconfigurable antenna is designed based on arrayed antennas theory. Simulations results show that the radiation pattern can be tuned to different angles by properly arranging the linear phase difference of adjacent regions.
Addresses: [Wang, YF; Yin, JC; Yuan, GS; Dong, XC; Du, CL] Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Microfabricat, Chengdu 610209, Peoples R China
Reprint Address: Du, CL (reprint author), Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Microfabricat, Chengdu 610209, Peoples R China
E-mail Address: cldu@ioe.ac.cn
IDS Number: 808IT
Source: APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING Volume: 104 Issue: 4 Pages: 1243-1247 DOI: 10.1007/s00339-011-6455-4 Published: SEP 2011
Abstract: A tunable metamaterial by employing I-shaped metamaterial with loaded varactor diode is presented in this paper and the phase of emitting wave modulated by the varactor diode is demonstrated. We have proved that the energy loss is relatively low when the working frequency is chosen to be away from the resonance frequency of the I-shaped metamaterial. By using the metamaterial, a pattern reconfigurable antenna is designed based on arrayed antennas theory. Simulations results show that the radiation pattern can be tuned to different angles by properly arranging the linear phase difference of adjacent regions.
Addresses: [Wang, YF; Yin, JC; Yuan, GS; Dong, XC; Du, CL] Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Microfabricat, Chengdu 610209, Peoples R China
Reprint Address: Du, CL (reprint author), Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Microfabricat, Chengdu 610209, Peoples R China
E-mail Address: cldu@ioe.ac.cn
IDS Number: 808IT
