READER ANTENNA, SHELF FOR PLACING ARTICLE PROVIDED WITH ANTENNA, AND TABLE FOR PLACING ARTICLE PROVIDED WITH ANTENNA

摘要

A reader antenna arranged on a shelf board is composed of a plurality of antennas having substantially loop-shaped antenna patterns, respectively. First and second antennas among the antennas are provided with a plurality of base line sections and at least one bent section, respectively. Each bent section has a protruding shape provided with a first standing section and a connecting section, which connects the leading end portion of the first standing section with that of a second standing section, and the bent sections are arranged to face each other. The shelf board provided with the antenna can communicate with an electronic tag arranged on an article placed on the shelf board of an article managing shelf, substantially irrespective of the direction of the electronic tag. An article managing shelf using such shelf board having the antenna is also provided.