A Low Phase Noise Frequency Synthesizer for Single-Chip UHF RFID Reader
Zongsheng Lai
Abstract
Zongsheng Lai
Abstract
Requirements of frequency synthesizer on phase noise were discussed based on EPC global C1G2 and ETSI multi-protocol operation.A low phase noise 3rd-order II-type charge pump phase locked loop for single-chip CMOS UHF RFID reader was presented,which acted as a frequency synthesizer.Symmetrical LC filters and LDO regulator were used to improve phase noise performance.The circuit was implemented in 0.18 μm CMOS RF technology.Test results showed that the frequency synthesizer had a phase noise of-109.13 dBc/Hz and-127.02 dBc/Hz,at 200 kHz and 1 MHz offset from the carrier,respectively.
A significance statement is not available in the OpenAlex record.
A contribution statement is not available in the OpenAlex record.
Method details are not available in the OpenAlex metadata.
Findings are not separately available in the OpenAlex metadata.
Limitations are not available in the OpenAlex metadata.
Application details are not available in the OpenAlex metadata.
Requirements of frequency synthesizer on phase noise were discussed based on EPC global C1G2 and ETSI multi-protocol operation.A low phase noise 3rd-order II-type charge pump phase locked loop for single-chip CMOS UHF RFID reader was presented,which acted as a frequency synthesizer.Symmetrical LC filters and LDO regulator were used to improve phase noise performance.The circuit was implemented in 0.18 μm CMOS RF technology.Test results showed that the frequency synthesizer had a phase noise of-109.13 dBc/Hz and-127.02 dBc/Hz,at 200 kHz and 1 MHz offset from the carrier,respectively.
Key concepts: Phase noise, dBc, Frequency synthesizer, Ultra high frequency, Phase-locked loop, Frequency offset, CMOS, Direct digital synthesizer