User's Manual

COBALT UHF-SERIES CHAPTER 9: RFID OVERVIEW
PAGE 128 OF 140
9.2 OVERVIEW ON ULTRA HIGH FREQUENCY RFID
APPLICATIONS
9.2.1 UHF Standards and Regulations
One of the most important aspects of a tag and reader coupling is the frequency at
which it operates. Frequency of operation can vary based on the application,
standards, and regulations.
The most common RFID frequency ranges are Low Frequency (LF) at 135kHz or
less, High Frequency (HF) at 13.56MHz, Ultra High Frequency (UHF) starting at
300MHz. Microwave Frequency at 2.45GHz and 5.4GHz is also used in some
applications.
Ultra High Frequency (UHF) designates a range (or band) of electromagnetic waves
with frequencies between 300 MHz and 2.45 GHz (2,450 MHz).
Figure 9-1: Radiowaves Spectrum Diagram