Abstract: A radio frequency identification automatic detecting system with an antenna net includes a radio frequency identification module, an enhancing surface wave-guide coaxial cable structure including a coaxial cable having at least one aperture region without an outer conducting layer, a receiving apparatus having a plurality of receiving spaces and a plurality of extension wires disposed adjacent to the receiving spaces and coupled or connected to the outer conducting layer of the coaxial cable. The electromagnetic field is formed in nearby regions adjacent to the receiving spaces because the electromagnetic wave caused by the current generated from the radio frequency identification module is transmitted by the outer conducting layer and extension wires. The radio frequency identification electronic tag on the object is triggered automatically when the object is moved toward or moved out from the respective receiving space such that the automatic detecting effect is achieved.

Abstract: A radio frequency identification electronic device with enhancing surface wave-guide effect includes a host or a programmable single IC, an identification transmitting/receiving device electrically connected to the host or the programmable single IC for generating a current, and an enhancing surface wave-guide coaxial cable structure. The enhancing surface wave-guide coaxial cable structure comprises a coaxial cable having at least one breach region without an outer conducting layer and a matching resistor, wherein the current builds up an electromagnetic (EM) wave while flowing through the at least one breach region, and the EM wave is transmitted along the outer conducting layer of the coaxial cable until to the matching resistor. Moreover, an electromagnetic field can be built up while the current flows through the at least one breach region, and a RFID electronic tag attached to an object can be automatically triggered by the electromagnetic field.