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Fialho, Vitor

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7E11-8005-6F32
0000-0003-3933-975X

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20171
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End date: 2019 × Subject: Charge pump phase lock loop ×

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  • Local oscillator phase noise model for EVM estimation and optimization
    Publication . Fialho, Vitor; Fortes, Fernando; Vieira, Manuela
    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.
    2017Journal article Restricted access Show more