TY - GEN
T1 - Wideband Polarization Reconfigurable Crossed Bowtie Dipole Antenna Based on Liquid Metal Switches
AU - Zhang, Yuwei
AU - Lin, Shu
AU - Zhang, Xingqi
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - In this paper, a wideband polarization recon-figurable dipole antenna based on liquid metal switches is proposed. The main parts of the antenna are two single-fed crossed bowtie dipoles with slots loaded on the arms of one dipole. Two sets of fixed-length liquid metal columns filled in polytetrafluoroethylene (PTFE) tubes are attached on top of the slots as switches. Because of the coupled connection between the liquid metal columns and the dipole arms, the slots can be shorted/opened by changing the position of the liquid metal columns, leading to alteration in phase differences between dipoles, and thus achieving polarization reconfiguration. The bowtie dipoles are used to obtain wide operating bandwidth, while the use of a cavity-backed reflector can make the antenna obtain directional radiation characteristics. The simulated results obtained by CST Microwave Studio® show that the impedance bandwidth of the antenna is from 1.01 GHz to 2.25 GHz and the axial ratio bandwidth is from 1.18 GHz to 1.36 GHz. Moreover, the peak gain can reach 8.78 dBi.
AB - In this paper, a wideband polarization recon-figurable dipole antenna based on liquid metal switches is proposed. The main parts of the antenna are two single-fed crossed bowtie dipoles with slots loaded on the arms of one dipole. Two sets of fixed-length liquid metal columns filled in polytetrafluoroethylene (PTFE) tubes are attached on top of the slots as switches. Because of the coupled connection between the liquid metal columns and the dipole arms, the slots can be shorted/opened by changing the position of the liquid metal columns, leading to alteration in phase differences between dipoles, and thus achieving polarization reconfiguration. The bowtie dipoles are used to obtain wide operating bandwidth, while the use of a cavity-backed reflector can make the antenna obtain directional radiation characteristics. The simulated results obtained by CST Microwave Studio® show that the impedance bandwidth of the antenna is from 1.01 GHz to 2.25 GHz and the axial ratio bandwidth is from 1.18 GHz to 1.36 GHz. Moreover, the peak gain can reach 8.78 dBi.
KW - Polarization reconfigurable antenna
KW - cavity-backed reflector
KW - crossed bowtie dipoles
KW - liquid metal switches
UR - https://www.scopus.com/pages/publications/85149522172
U2 - 10.1109/MAPCON56011.2022.10046775
DO - 10.1109/MAPCON56011.2022.10046775
M3 - 会议稿件
AN - SCOPUS:85149522172
T3 - 2022 IEEE Microwaves, Antennas, and Propagation Conference, MAPCON 2022
SP - 2063
EP - 2066
BT - 2022 IEEE Microwaves, Antennas, and Propagation Conference, MAPCON 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE Microwaves, Antennas, and Propagation Conference, MAPCON 2022
Y2 - 12 December 2022 through 16 December 2022
ER -