EDN

Tutorial: Radio Basics for UHF RFID–Part VI

We have been able to conclude that using an isotropic antenna, an RFID reader might achieve a read range of a few meters with 1 watt of output power. This configuration might be fine if RFID tags of ...
Electronic Design

Where, How, and Why: Placing an Embedded Antenna on a PCB

Antennas are sensitive to their surroundings. Thus, when there’s an antenna on the PCB, the layout for the design should take the requirements of the antenna into account, as this can make a huge ...
EDN

Tutorial: Radio Basics for UHF RFID–Part V

Let's summarize the message of the last couple of sections. To transmit to a tag, a reader uses amplitude modulation to send a series of digital symbols. The symbols are coded to ensure that ...