NOISE STUDIES IN UNIFORM AVALANCHE DIODES

Abstract
This Letter reports avalanche noise studies on microplasma‐free guard‐ring avalanche diodes. The low and high frequency approximations of Hines' theory are compared with experimental results at 1 kHz and 3 to 9 GHz, respectively. Good agreement is found between experiment and theory at both low and high frequencies. The open‐circuit spectral voltage density is white up to the avalanche frequency ω a and decreases inversely with current. For ω ≫ ω a the spectral noise power density falls off with ω4.

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