A small note about RFID technology applied to public safety. Part 1: RFID tag antenna design

12–18 GHz Microwave Frequency Band Microstrip Patch Antenna Design for the Radio Implant Medical Devices Application

“…A microstrip patch antenna array has been designed, meeting the resonance frequency, small size (millimetric), exhibiting a wide bandwidth (12)(13)(14)(15)(16)(17)(18), an appropriate geometry of the radiation pattern, low cost, and easily construction.…”

“…On the other hand, literature review present other architectures antennas, in the MICS (402.0-405.0 MHz) and ISM (433.1-434.8, 868.0-868.6 and 902.8-928.0 MHz) bands [18]. The proposed antenna is novel, useful, innovative antenna, in the microwave band (12)(13)(14)(15)(16)(17)(18), small dimensions and wide bandwidth.…”

“…Actually ITU-R Recommendation SA.1346 (ITU-R 1998) which outlined the use of the 402.0-405.0 MHz frequency band for medical implant communication services (MICS), in this sense, at 402 MHz-405 MHz, the wavelength of an electromagnetic wave is approximately 74 cm, as we know, the size of the microstrip antenna is directly proportional to the wavelength at the operating frequency, consequently an antenna with dimensions comparable to this wavelength cannot be used for an implant [12], so, different antenna structures that need to be addressed. In this sense, due to higher operation frequencies allow use of smaller-sized antennas and components, and without wanting to enter a conflict with ITU-R regulations, for this purpose the designed antenna in this work, is a just a proposal to be considered, due to wavelength corresponding to this frequency band (12)(13)(14)(15)(16)(17)(18), ranges between 25 mm to 16 mm.…”

“…Only for the sole purpose to observe the dimensions of the proposed microwave band patch antenna, this one was placed close to a RFID UHF Band meander antenna (915 MHz) [13], (see Fig. 1).…”