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公开(公告)号：US20210399431A1
公开(公告)日：2021-12-23
申请号：US17342685
申请日：2021-06-09
Applicant: CommScope Technologies LLC
Inventor： HAIYAN CHEN , Pengfei Guo
Abstract: A base station antenna may include a radiation element configured to operate in a predetermined frequency band; and an absorbing device arranged above the radiation element and configured to absorb electromagnetic radiation of the predetermined frequency band. The absorbing device may be made of a metamaterial.
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