Abstract
This work presents a local oscillator (LO) phase noise model and its experimental validation for carrier to phase noise ratio (CPNR) and error vector magnitude (EVM) evaluation on a radio frequency (RF) transceiver. The proposed LO model is based on a type II charge pump phase locked loop with a combined phase noise source from the voltage controlled oscillator and input reference with a low pass characteristic. The obtained results of CPNR and signal to phase noise ratio are based on numerical simulations and validated with experimental measurements based on a commercial RF transceiver chip. The EVM of the transmitted RF channel is also measured and compared with CPNR.
Original language | English |
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Pages (from-to) | 45-52 |
Number of pages | 8 |
Journal | IETE Journal of Research |
Volume | 63 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2017 |
Keywords
- Carrier to phase noise ratio
- Charge pump phase lock loop
- Error vector magnitude
- Local oscillator
- Phase noise
- Signal to phase noise ratio