Transmission line antenna for radio frequency identification

摘要

Disclosed in the present invention is a transmission line antenna for radio frequency identification, comprising a substrate and a conducting strip, wherein said conducting strip is arranged on said substrate; said substrate and said conducting strip form a transmission line; and the width of said conducting strip gradually reduces from the middle area of said conducting strip to two sides, so as to reduce field nulls in an electric field radiated by the antenna, thereby improving the reading distance.