ISSN:
1572-9559
Schlagwort(e):
“Allan” Variance
;
SIS mixer stability
;
low noise amplifier
;
gain stability
;
bias noise
;
temperature fluctuation noise
;
acoustic vibrations
;
Josephson noise
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
Abstract There is a strong interest in the submillimeter astronomy community to increase the IF bandwidth of SIS receivers in order to better facilitate broad spectral linewidth and continuum observations of extragalactic sources. However, with an increase in receiver IF bandwidth there is a decrease in the mixer stability. This in turn effects the integration efficiency and quality of the measurement. In order to better understand the noise mechanisms responsible for reducing the receiver stability, we employed a technique first described by D.W. Allan and later elaborated upon by Schieder et al. In this paper we address a variety of factors that degrade the noise stability of SIS receivers. The goal of this exercise is to make recommendations aimed at maximizing SIS receiver stability.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1023/A:1026452324545
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