Patch antenna for integration in AUN based access control system

This paper discusses the design and implementation of an RFID-based access control system for use in a University campus. This system's design begins with the design of a power-efficient and cheap passive 125Khz RFID tags and reader antennae using the HFSS software. The key antenna design goals are miniaturization, power efficiency (passive RFID), linear polarization and a narrow beam/gain width. The patch antenna is then used as the driving component of the implemented access control system by interfacing its reader module with an Arduino Mega 2560 microcontroller which is linked to a door via a relay thus granting only valid RFID Tags access to these doors while keeping track of tags used to access the door. As such, a patch antenna is used to control access to the door using Radio Frequency Identification.