Dual-band transmitter for RFID applications

摘要

A dual-band ASK transmitter is implemented using 0.18-um CMOS technology for RFID applications. Injection-lock technique is adopted for carrier synthesis. The transmitter delivers power levels of 2.9 and −0.8 dBm at operating bands of 384–448 MHz and 768–896 MHz, respectively, where phase noises of −124.5 dBc/Hz and −117.0 dBc/Hz are achieved at the offset frequency of 1 MHz.