Designing RF Ring Oscillator Using Current-Mode Technology | Zendy

Jie Jin | Zendy; Kai-Qing Zhou | Zendy; Lv Zhao | Zendy

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Designing RF Ring Oscillator Using Current-Mode Technology

Author(s) -

Jie Jin,

Kai-Qing Zhou,

Lv Zhao

Publication year - 2017

Publication title -

ieee access

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.587

H-Index - 127

ISSN - 2169-3536

DOI - 10.1109/access.2017.2692771

Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation

In this paper, a new method of designing RF ring oscillator using current-mode technology is presented. The current-mode low frequency oscillator theory is transferred to facilitate the design of RF ring oscillator. As an example, a current-mode RF quadrature ring oscillator (RFQRO) for L -band wireless communication applications is presented. The current-mode RFQRO consists of two first-order all-pass filters, and it provides four quadrature RF sinusoidal outputs. The proposed current-mode RFQRO is verified with GlobalFoundries' 0.18 μm 1P6M CMOS RF process. The simulated and measured results demonstrate that the proposed RFQRO works at 1.03 GHz, and its frequency tuning range is from 648.9 MHz to 1.17 GHz by adjusting the bias voltage from 0.62 to 1 V. The measured phase noise of the RFQRO is -105.5 dBc/Hz at 1 MHz offset, and it consumes 2.5 mW from 1 V supply voltage.

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