Credit card type transponder with radio frequency remote Identify system for long range cognition

PURPOSE: A credit card type transponder including a remote identify system for a long distance identification is provided to receive a beam electric power being emitted in an interrogator in a small-sized card size maximally by utilizing an aperture area of a micro strip antenna maximally, arranging two slot antennas and two dipole antennas properly, thereby performing the maximum emitting efficiency to secondary harmonic of a received electric wave justified to a resonance point. CONSTITUTION: A high frequency RFID transponder of 400 MHz-25GHz constituted by a dipole antenna(23), a slot antenna(22), and an integrated circuit(21) is stored in a credit card. Thus, the credit card is used at a road charge collection system, an oil station charge payment, a parking lot charge collecting and managing system, etc. without contacting a vehicle with an additional communication device. The slot antenna(22), the dipole antenna(23), and the integrated circuit(21) mounted at the central portion of the slot are stored at the wide portion of the credit card based on a magnet.