50 GHz谐振隧道二极管弛豫振荡器

Conference Digest [Includes 'Late News Papers' volume] Device Research Conference, 2004. 62nd DRC. Pub Date : 2004-06-21 DOI:10.1109/DRC.2004.1367887

P. Chahal, F. Morris, G. Frazier

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引用次数: 6

摘要

已经设计和制造了峰值电流密度超过500 kA/cm/sup / 2/的基于InAlAs/AlAs的rtd。利用这些0.6 /spl mu/m/sup / rtd设计了20和50 GHz的弛豫振荡器电路。它们由一个RTD和一个放置在共面波导(CPW)中的5 /spl ω /电阻组成。20 GHz和50 GHz振荡器的测量频谱显示只有奇次谐波。弛豫振荡器的测量结果表明，它们具有非常低的相位噪声(低抖动)，在锁定模式下，在1 MHz偏移时低于-110 dBc/Hz，并且很容易被锁相。基于RTD的弛豫振荡可以很容易地用作高速信号处理应用中的时钟。

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50 GHz resonant tunneling diode relaxation oscillator

InAlAs/AlAs based RTDs with a peak current density over 500 kA/cm/sup 2/ have been designed and fabricated. Relaxation oscillator circuits for 20 and 50 GHz were designed using these 0.6 /spl mu/m/sup 2/ RTDs. They consist of an RTD and a 5 /spl Omega/ resistor placed in a coplanar waveguide (CPW). The measured spectrum of the 20 GHz and 50 GHz oscillators showed only odd harmonics. The measured results of the relaxation oscillators show that they have very low phase noise (low jitter), below -110 dBc/Hz at 1 MHz offset in locked-mode, and can easily be phase locked. RTD based relaxation oscillation can be readily used as clocks in high-speed signal processing applications.

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来源期刊

Conference Digest [Includes 'Late News Papers' volume] Device Research Conference, 2004. 62nd DRC.

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