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In this paper we describe the design, implementation and performance of a low noise cascode amplifier. This amplifier is characterized in term of equivalent input voltage noise density and voltage gain at different drain currents upto a frequency of 80 MHz. The equivalent input voltage noise density of this amplifier is measured by two techniques. In the first technique, the output noise spectrum...
A helical resonator coupled with a low noise amplifier is widely used for detection of trapped particles. Since the ion trap and amplifier load the resonator capacitively, it is required to estimate the resonant frequency of helical resonator under capacitive loading. In this paper, helical resonator with different values of capacitive loading is studied using HFSS software. A comparison is drawn...
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