An Electrically Controlled Pattern- and Polarization-Reconfigurable Cylindrical Dielectric Resonator Antenna

被引:0
|
作者
Liu, Xiyao [1 ,2 ,3 ]
Leung, Kwok Wa [1 ,2 ,3 ]
Zhang, Tianyu [4 ]
Yang, Nan [5 ]
Gu, Pengfei [6 ]
Chen, Rushan [6 ]
机构
[1] City Univ Hong Kong, State Key Lab Terahertz & Millimeter Waves, Kowloon, Hong Kong, Peoples R China
[2] City Univ Hong Kong, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China
[3] CityU Shenzhen Res Inst, Informat & Commun Technol Ctr, Shenzhen 518057, Peoples R China
[4] Nanjing Elect Devices Inst, Shenzhen 518000, Peoples R China
[5] Sun Yat Sen Univ, Sch Elect & Informat Technol, Guangzhou 510006, Peoples R China
[6] Nanjing Univ Sci & Technol, Dept Commun Engn, Nanjing 210094, Peoples R China
来源
关键词
Antenna measurements; Wireless communication; RF signals; Prototypes; Switches; Solids; Dielectric resonator antennas; Dielectric resonator antenna (DRA); p-i-n diodes; polarizations; radiation patterns; reconfigurable antenna; RADIATION-PATTERN; FREQUENCY;
D O I
10.1109/LAWP.2021.3109616
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A pattern- and polarization-reconfigurable dielectric resonator antenna (DRA) is presented. It deploys a conventional cylindrical dielectric resonator (DR) with a new switchable feeding network. The feeding network has four slots that are etched in the ground. By tuning the phase distributions in these slots, three DR modes (the TM01 delta and two degenerated HEM113 modes) are excited. The former has an omnidirectional radiation pattern, whereas the latter two have boresight patterns with orthogonal polarizations (x- and y-polarization). By tuning the height-to-radius ratio, these modes can be designed to operate at the same frequency, thus enabling both the pattern and polarization reconfigurability. A prototype of the reconfigurable DRA working in 2.4 GHz is fabricated and measured to verify ideas. Reasonable agreement between measurements and simulations is obtained. Our design provides both pattern and polarization reconfigurability, with good efficiency in the band of interest.
引用
收藏
页码:2309 / 2313
页数:5
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