antenna in the 28.5 -29.5 GHz band for interactive wireless communications.This paper describes the design of a multi-layer transmit/receive microstrip patch array

Renewed interest in Quantum Flux Parametrons (QFPs) and their properties has occurred due to new applications of these devices for current comparators and timing discriminators [l]. Current noise (inferred from switching probabilities) of these devices has been measured as a function of exciter slew rates. We have found that at high slew rates the switching probability follows an error-function distribution quite closely. However, at low slew rates, the distribution resembles a Fermi-Dirac distribution. Good agreement with Monte-Carlo simulations for high slew-rates is seen with a current noise proportional to the Johnson noise of the damping resistors [2]. The current noise decreases with decreasing slew rate and is in good agreement with thermal activation calculations in the limit of slow slew rates.

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