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A Low Power Buffer-Feedback Oscillator with Current Reused Structure
Chang-Wan KIM Dat NGUYEN Jong-Phil HONG
IEICE TRANSACTIONS on Electronics
Publication Date: 2016/12/01
Online ISSN: 1745-1353
Type of Manuscript: BRIEF PAPER
Category: Electronic Circuits
millimeter-wave, low power, buffer-feedback, oscillator,
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This paper presents a low power millimeter-wave oscillator consisting of a current-reused topology and buffer-feedback. By connecting a buffer-feedback topology between the core LC-tank of the oscillator and the output buffer stage, the simulated oscillation frequency of the proposed oscillator is increased by 17%, compared to that of the conventional current-reused oscillator. In addition, to obtain the same output power, the proposed oscillator reduces the power dissipation by 47%, compared to that of the conventional buffer-feedback oscillator. The prototype of the proposed oscillator is fabricated in a 65nm CMOS technology with a size of 700µm×480µm including pad. Measurement results indicate an oscillation frequency of 71.3GHz, while dissipating 10mA from a 1.6V supply.