A DBDCP Antenna With a Helmet-Conformal AMC for Industrial IoT Applications Featuring LHCP and RHCP in the Low and High Bands, Respectively. - Chenyin Yu; Shuhui Yang; Yunrong Han; Libiao Jin; Yinchao Chen; Wensong Wang; Zengrui Li; Liangyun Zhang; Yuanjin Zheng (IEEE Internet Things J., 2024)