Low Phase-Noise, 2.4 and 5.8 GHz Dual-Band Frequency Synthesizer with Class-C VCO and Bias-Controlled Charge Pump for RF Wireless Charging System in 180 nm CMOS Process

Low Phase-Noise, 2.4 and 5.8 GHz Dual-Band Frequency Synthesizer with Class-C VCO and Bias-Controlled Charge Pump for RF Wireless Charging System in 180 nm CMOS Process

This paper presents an integer-N phase-locked loop (PLL) for an RF wireless charging system. To improve the phase-noise characteristics under low power, a constant amplitude control class-C voltage-controlled oscillator (VCO) with a DC-DC converter, and a bias-controlled charge pump with a feedback...

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Bibliographic Details
Main Authors: Jongwan Jo, David Kim, Arash Hejazi, YoungGun Pu, Yeonjae Jung, Hyungki Huh, Seokkee Kim, Joon-Mo Yoo, Kang-Yoon Lee
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Electronics
Subjects:
PLL
LC-VCO
class-C VCO
RF wireless charger
ISM band
charge pump
Online Access:https://www.mdpi.com/2079-9292/11/7/1118

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