Radio frequency identification reader antenna and shelf

摘要

A radio frequency identification (RFID) reader antenna includes a feeding frame, a upper stub unit connected with the first side of the feeding frame, and a lower stub unit connected with the second side of the feeding frame, wherein the upper stub unit includes M first stubs extending towards the second side of the feeding frame, the lower stub unit includes N second stubs extending towards the first side of the feeding frame, the M first stubs and the N second stubs are arranged alternately intervallic, where M, N are integers that are greater than one.

主权项

1. A radio frequency identification (RFID) reader antenna, comprising:
a feeding frame; an upper stub unit; and a lower stub unit; wherein the feeding frame comprises a feed source end, a first side, a load end, and a second side that are sequentially connected, the upper stub unit is connected to the first side of the feeding frame, and the lower stub unit is connected to the second side of the feeding frame; wherein the upper stub unit includes M first stubs extending toward the second side of the feeding frame, and the lower stub unit includes N second stubs extending toward the first side of the feeding frame, the M first stubs and the N second stubs being arranged alternately, and M and N being integers greater than 1; and wherein at least one of (i) a width of the first side of the feeding frame narrows in a direction from a feed source end to a load end and (ii) a width of the second side of the feeding frame narrows in a direction from the feed source end to the load end.