Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
William Wappler0
Date of Patent
January 12, 2021
0Patent Application Number
164112390
Date Filed
May 14, 2019
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Antenna assemblies for controlling radiation patterns or backscatter sensing zones are provided. The antenna assemblies may be used in a system for identifying items, such as a radio-frequency identification (RFID) system having an RFID reader and a plurality of RFID tags. In one embodiment, an antenna assembly may include a directional antenna having a fanned-shaped radiation pattern. In addition to the directional antenna, the antenna assembly may further include a right shroud element configured to reduce a right side of the fanned-shaped radiation pattern and a left shroud element configured to reduce a left side of the fanned-shaped radiation pattern.
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