Of or pertaining to electromagnetic radiation in the radio frequency band of the spectrum.

(uncountable) That part of the electromagnetic spectrum, between about 3 kHz and 300 MHz, within which radio waves are transmitted. / (countable) A frequency in this range.

plural of radio frequency

(radio, telecommunications) The storage and retrieval of data using tags attached to individual packages, animals or people; the tags contain an integrated circuit to store and process the data, and an antenna to transmit and receive such data.

An integrated circuit containing analog circuitry operating at frequencies in and above the ultrahigh frequency band.

plural of radio frequency integrated circuit