In order to reduce the cost of conventional tags and increase their coding capacity without increasing their area,a kind of chipless tag composed of embedded multi-rectangular slot rings is proposed,whose dimension is decreased obviously by embedding.Then,the chipless tag of a twelve-bit code capacity is fabricated on a 35mm× 35mm F4BM-1/2.Coding is realized on the basis of the presence or absence of the rectangular slot ring.The presence is indicated as logical“1”and the absence is indicated as logical“0".Finally,the reading distance of the proposed chipless tag is measured by using a network analyzer in a microwaved anechoic chamber and correct data signals can be received at a distance of 50 cm from transmitting and receiving antennas.The simulation results on the proposed chipless tag of a twelve-bit coding capacity accord well with the examination ones.