To provide an RF tag reading apparatus, which is simply structured and can contain multiple articles, each with an RF tag affixed, in an article container at a time to improve efficiency of reading the RF tags.
The article container 1 contains a large number of postal envelopes 2 arranged face to face with each other, each with the RF tag 3 affixed. A reader antenna 9, which is connected to an interrogator 7 via a coaxial cable 8, is disposed under the article container 1. Maximum gain directions of the RF tags 3 affixed to the respective postal envelopes 2 are directed to the reader antenna 9. The respective postal envelopes 2 contained in the article container 1 are arranged face to face with each other in a direction orthogonal to the maximum gain direction of the RF tags 3. A maximum gain direction of the reader antenna 9 is oriented toward a base end surface of the article container 1. Accordingly, the maximum gain directions of the RF tags 3 are opposed to the maximum gain direction of the reader antenna 9.
COPYRIGHT: (C)2007,JPO&INPIT
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